taxonID	type	description	language	source
03E987B91E7BFFC2588BCC4BFE2EB067.taxon	description	(Figs 1; 2; 8 A; 9 A) urn: lsid: zoobank. org: act: 0 BBB 3 F 1 B- 54 FE- 4424 - A 9 DC- 9409451 B 5 D 92	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E7BFFC2588BCC4BFE2EB067.taxon	materials_examined	TYPE MATERIAL. — Holotype. Peru • ♂; Cuzco, Pagoreni; VII. 2004, J. Williams; light trap; MLPA. Allotype. Peru • ♀; same data as for holotype; MLPA. Paratypes. Peru • 4 ♂, 8 ♀; same data as for holotype; MLPA • 1 ♀; Cuzco, Kirigueti; VII. 2004; J. Williams; light trap; MLPA.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E7BFFC2588BCC4BFE2EB067.taxon	etymology	ETYMOLOGY. — The name tricuspis refers to the three points at apex of the dorsal portion of male aedeagal-parameral complex.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E7BFFC2588BCC4BFE2EB067.taxon	distribution	DISTRIBUTION. — Atrichopogon (A.) tricuspis Rossi, Marino & Spinelli, n. sp. is known only from two localities in the Cuzco province (Kirigueti, 11 ° 38 ’ 13 ” S, 73 ° 07 ’ 07 ” W, 395 m, and Pagoreni, 11 ° 42 ’ 21.9 ” S, 72 ° 54 ’ 21.9 ” W, 510 m).	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E7BFFC2588BCC4BFE2EB067.taxon	diagnosis	DIAGNOSIS. — Only extant species of Atrichopogon in the New World with pigmented wings and without secondary sexual dimorphism, with the scutum lacking a lateral suture and its posterior margin bearing a pair of bunches of 22 - 24 short setae, each on stout rounded base. Male: antenna similar to female, dorsal portion of aedeagalparamere complex forming a posteriorly-directed trident. Female: spermatheca heavily sclerotized.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E7BFFC2588BCC4BFE2EB067.taxon	description	DESCRIPTION Male adult (Figs 1; 8 A) Head (Fig. 1 A). Dark brown. Ommatidia (Fig. 1 B) with interfacet spicules, broadly abutting medially for length of seven ommatidia. Antenna light brown with plume setae not developed; flagellomeres separate, 1 - 8 vasiform, 9 - 13 elongated, proportions as shown in Figure 1 A; flagellomere 13 with apical nipple, not basally constricted; AR 1.02 - 1.16 (1.07, n = 5). Maxillary palpus (Fig. 1 C) pale brown; third segment slender, with well developed pit just beyond midlength; segments 4, 5 separate; segment 5 conical; PR 2.00 - 2.20 (2.10, n = 5). Head width / mouthparts length 3.13 - 3.53 (3.33, n = 5). Thorax. Dark brown except scutellum yellowish brown. Scutum (Fig. 1 D) with all setae in dark pits; without lateral suture. Posterior margin of scutum with pair of bunches of 22 - 24 short setae, each on stout rounded base. Paratergite with one stout seta. Anepisternum narrow, slightly bilobed posteriorly. Legs light brown. Hind tibia expanded only at apex. Hind tibial spur length less than width of hind tibia at midlength; hind tibial comb with 8 - 11 spines; prothoracic TR 3.33 - 4.00 (3.66, n = 5), mesothoracic TR 3.14 - 3.67 (3.32, n = 5), metathoracic TR 2.66 - 3.14 (3.01, n = 5); claws curved, moderately stout, bifid at tip; empodia present. Wing (Fig. 1 E) with two slight dark spots in area of r-m and in r 3 posterior to apex of R 3; with macrotrichiae on membrane in apical portion of r 3, scarce or no macrotrichiae in m 1; both radial cells well formed, second radial cell three × longer than first; wing length 0.90 - 0.98 (0.94, n = 5) mm; width 0.40 - 0.42 (0.40, n = 5) mm; CR 0.69 - 0.74 (0.70, n = 5). Halter pale. Abdomen (Fig. 1 F). Tergites 1 - 3 dark brown, 4 - 7 successively lighter, 8 entirely dark brown. Genitalia (Figs 1 G; 8 A) large, segment 9 about equal in width to segment 8; tergite 9 moderately elongate, extending to about level of apex of gonocoxites; posterior margin rounded. Sternite 9 with posterior margin broadly concave, with row of setae separated medially. Gonocoxite without medial lobe, twice as long as greatest breadth. Gonostylus tapering from base, 0.80 length of gonocoxite, anterolaterally flattened, gently curved, apex pointed with large subapical flange. Aedeagal-parameral complex elongate, broad; dorsal portion forming a posteriorly-directed trident, its mesal point truncate, lateral ones pointed; ventral portion somewhat rounded posteriorly, with lateral arms directed laterally. Cercus slender, elongate, extending beyond margin of tergite 9. Female adult (Figs 2; 9 A) Head. As for male, with following differences: proportions of flagellomeres as shown in Figure 2 A, flagellomeres 1 - 8 brown, slightly longer than broad, vasiform, flagellomeres 9 - 13 elongated; AR 1.39 - 1.51 (1.45, n = 9). Maxillary palpus as in Figure 2 B, basal 2 / 3 of third segment slightly swollen with shallow sensory pit near midlength; segments 4, 5 separate, its combined length longer than third segment; PR 2.18 - 2.50 (2.29, n = 9); head width / mouthparts length 2.70 - 3.13 (2.86, n = 9). Mandible poorly developed, without teeth. Thorax. Legs with hind tibial comb with 9 - 11 spines; prothoracic TR 3.43 - 3.83 (3.68, n = 9), mesothoracic TR 3.28 - 3.71 (3.46, n = 9), metathoracic TR 2.70 - 3.33 (3.05, n = 9); claws curved, not bifid at tip. Wing (Fig. 2 C) with the same pattern of pigmented membrane, with numerous macrotrichiae in r 3, scarce in m 1; radial cells narrow, second 3.5 × longer than first; wing length 0.98 - 1.08 (1.02, n = 9) mm; width 0.42 - 0.48 (0.45, n = 9) mm; CR 0.69 - 0.72 (0.70, n = 9). Abdomen (Fig. 2 D). Tergites 1 - 7 brown, segments 8 - 10 dark brown. Sternite 7 rectangular. Sternite 8 without elongate cuticular extensions, posterior margin boat-shaped. Sternite 9 (Figs 2 E; 9 A) subquadrangular, sclerotized anteriorly. One spermatheca heavily sclerotized, ovoid with short, slender neck, measuring 0.090 - 0.110 (0.100, n = 5) by 0.064 - 0.080 (0.070, n = 5) mm. Cercus brown.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E7BFFC2588BCC4BFE2EB067.taxon	discussion	REMARKS Borkent & Picado (2004) pointed out that the lack of a lateral scutal suture, shared by A. asuturus Borkent & Picado, 2004 and A. tirzae Borkent & Picado, 2004, both from Costa Rica, is a condition apparently unique within at least the Forcipomyiinae Lenz, 1934, and it is likely a synapomorphy for these two species. Atrichopogon tricuspis Rossi, Marino & Spinelli, n. sp. shares the same condition with the two species mentioned before. The presence of setae arising from dark pits on the scutum is shared with A. asuturus, A. tirzae and A. beccus Borkent & Picado, 2004 and may be a synapomorphy of these four species; however, these pits are less developed, as in A. beccus. Furthermore, this new species shares with A. asuturus and A. tirzae the presence of femalelike antenna (five flagellomeres elongated) and wing, the main differences between these species being in male genitalia. The aedeagal-parameral complex of A. tricuspis Rossi, Marino & Spinelli, n. sp. is elongate with the dorsal portion forming a posteriorly-directed trident, and the gonostylus ends in a pointed tip. The aedeagal-parameral complex of A. tirzae bears a posteriorly-directed prong, while in A. asuturus the dorsal portion tapers somewhat rounded. The apex of the gonostylus of both species is bifid. During the present study we examined the female holotype of A. nubeculosus Macfie, 1949 a species with pigmented wings known from Mexico. It shares with A. tricuspis Rossi, Marino & Spinelli, n. sp. the pair of bunches of short setae on the posterior margin of the scutum, and this condition is likely a synapomorphy for these two species. However, the spermatheca of A. nubeculosus is very hyaline, nearly imperceptible, contrasting with the heavily sclerotized spermatheca of A. tricuspis Rossi, Marino & Spinelli, n. sp. The male of A. nubeculosus is unknown.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E78FFCF58A7C969FE1AB264.taxon	description	(Figs 3; 4; 8 B; 9 B) urn: lsid: zoobank. org: act: 48 DE 212 B- 192 E- 4 A 76 - 89 D 1 - 793 B 74962 D 9 A	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E78FFCF58A7C969FE1AB264.taxon	materials_examined	TYPE MATERIAL. — Holotype. Peru • ♂; Cuzco, Kirigueti; VII. 2004, J. Williams; light trap; MLPA. Allotype. Peru • ♀; same data as for holotype; MLPA. Paratype. Peru • 1 ♀; same data as for holotype; MLPA.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E78FFCF58A7C969FE1AB264.taxon	etymology	ETYMOLOGY. — The name trochantispina (spine) refers to the distinctive spines on the trochanter of hind leg.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E78FFCF58A7C969FE1AB264.taxon	distribution	DISTRIBUTION. — Atrichopogon trochantispina Rossi, Marino & Spinelli, n. sp. is known only from the type locality in Kirigueti (11 ° 38 ’ 13 ” S, 73 ° 07 ’ 07 ” W), at an elevation of 395 m.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E78FFCF58A7C969FE1AB264.taxon	diagnosis	DIAGNOSIS. — Only extant species of Atrichopogon in the New World with pigmented wings and the trochanter of hind leg bearing black spines.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E78FFCF58A7C969FE1AB264.taxon	description	DESCRIPTION Male adult (Figs 3; 8 B) Head (Fig. 3 A). Golden brown. Ommatidia (Fig. 3 B) with interfacet spicules, abutting medially for length of 3 - 4 ommatidia. Antenna pale brown with plume setae well developed, flagellomeres 2 - 10 fused, flagellomere 9 with plume setae, flagellomere 10 without plume setae, 11 - 13 elongated, 10 slightly longer than 1 - 9; flagellomere 13 with apical nipple, not basally constricted; AR 0.96. Maxillary palpus (Fig. 3 C) pale brown with third segment moderately elongate, swollen at midlength, with deep sensory pit opening just beyond midlength; segments 4, 5 closely apressed; segment 5 conical; PR 2.56. Proboscis short, head width / mouthparts length 2.8. Thorax (Fig. 3 E). Dark brown with small pale patch on humeral areas, ventral portion of pleurae lighter. Scutum with setae arising directly from surface, not in pits; with lateral suture. Paratergite with one stout seta. Anepisternum well developed, broadly bilobed posteriorly. Legs uniformly yellowish brown; hind trochanter with two black spines, the anterior one stouter; hind tibia slightly expanded at apex; hind tibial spur thick, length longer than width of hind tibia at midlength; hind tibial comb with nine spines; prothoracic TR 3.71, mesothoracic TR 3.57, metathoracic TR 3.00; claws curved, bifid at tip; empodia present. Wing (Fig. 3 D) with two distinct dark patches in area of r-m and in r 3 posterior to apex of R 3; with macrotrichiae in apical portion of r 3, m 1; both radial cells well formed, second nearly five × longer than first; wing length 0.92 mm; width 0.32 mm; CR 0.67. Halter pale. Abdomen (Fig. 3 F). Tergites 1 - 6 light brown with dark lateral patches, 7 - 8 entirely light brown, genitalia dark brown. Genitalia (Figs 3 G; 8 B) large, segment 9 about equal in width to segment 8. Tergite 9 narrow, short, not extending to apex of gonocoxites, tapering distally, posterior margin somewhat rounded with 6 black, long setae, 4 medial stout, 2 lateral ones thinner; sternite 9 narrow, with narrow longitudinal wrinkle (probably due to slide mounting process), posterior margin protruding with 2 pairs of mesal setae, each pair contiguous to wrinkle. Gonocoxite moderately stout, without medial lobe, 2.2 × longer than greatest breadth. Gonostylus 0.7 length of gonocoxite, split from midportion to apex (0.4 distal), outer portion nearly straight with one stout seta; inner portion slightly shorter, curved, apex pointed. Aedeagal-parameral complex elongate; dorsal portion with V-shaped basal arch, mesolateral margins subparallel, greatly expanded distally, hyaline, with broad, convex apex, pair of slender, sclerotized, subparallel, inner prongs ending in an arrow-shaped process, contiguous with a feet-shaped process directed laterally; ventral portion stout, triangular, lateral arms stout, recurved, directed posterolaterally, posterolateral margins slightly sinuate, apex not well discernible, apparently bulbous, produced beyond tergite by a short distance. Cercus elongate, broad basally, apex rounded, extending beyond margin of tergite 9. Female adult (Figs 4; 9 B) Head. As for male, with following differences: flagellum brown, proportions of flagellomeres as shown in Figure 4 A; flagellomeres 1 - 8 longer than broad, vasiform, flagellomeres 9 - 13 elongated; AR 1.46 - 1.48 (1.47, n = 2). Maxillary palpus (Fig. 4 B) with third segment slender, with deep sensory pit opening near midlength; segments 4, 5 separate, their combined length slightly longer than third segment; PR 2.20 (n = 2); head width / mouthparts length 2.15 - 2.39 (2.27, n = 2). Mandible with 21 teeth. Thorax. Scutum dark brown with humeral areas yellowish. Legs uniformly yellowish brown; prothoracic TR 3.71 (n = 2), mesothoracic TR 3.25 - 3.50 (3.38, n = 2), metathoracic TR 2.80 - 3.00 (2.90, n = 2); claws curved, not bifid at tip. Wing (Fig. 4 C) with the same pattern of pigmented membrane, with abundant macrotrichiae on r 3, m 1; radial cells narrow, second five × longer than first; wing length 0.92 - 0.98 (0.95, n = 2) mm; width 0.36 - 0.38 (0.37, n = 2) mm; CR 0.65 (n = 2). Abdomen (Fig. 4 D). Tergites 1 - 6 pale brown with dark lateral patches, 7 - 8 lighter, 9 dark brown, 10 uniformly light brown. Sternite 7 rectangular. Sternite 8 without elongate, cuticular extensions, posterior margin with narrow, mesal projection. Sternite 9 (Fig. 4 E; 9 B) subquadrangular. One spermatheca (Fig. 4 F; 9 B) large, ovoid with short, stout neck, sclerotized, measuring 0.120 - 0.124 (0.122, n = 2) by 0.098 - 0.104 (0.100, n = 2) mm. Cercus yellowish brown.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E78FFCF58A7C969FE1AB264.taxon	discussion	REMARKS Of the Neotropical species with distinctive pigmented wings, Atrichopogon trochantispina Rossi, Marino & Spinelli, n. sp. is the only one bearing stout black spines on the hind trochanter, likely an autapomorphy of this species. The presence of splitted gonostylus near midlength is shared with Atrichopogon maculipennis Clastrier, 1968 from French Guiana, Atrichopogon nukini Felippe-Bauer, 2018 and Atrichopogon riopardensis Farias, Pessoa & Paulino-Rosa, 2021 from Brazil. The wing of A. maculipennis has the distal 1 / 3 entirely dark and the gonostylus is shorter and thicker with the projections broadly separated. The dark spots of the wings of A. nukini and A. riopardensis are similar to the new species, however, the tergite 9 of A. nukini is moderately long, extending about the level of apex of gonocoxite, and the inner portion of the gonostylus of A. riopardensis is four times shorter than the outer portion. Atrichopogon clastrieri Spinelli & Marino, 2007 from Argentina is also similar to this new species, but in males of A. clastrieri the posterior margin of the tergite 9 bears a small medial lobe, and the gonostylus is simple, among other genital differences. The female mandible of A. clastrieri is poorly developed, without teeth.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E75FFC85978CB6FFE74B365.taxon	description	(Figs 5; 6; 8 C; 9 C) urn: lsid: zoobank. org: act: 9 EA 13 D 98 - D 89 B- 456 A-AE 18 - E 715 A 76 DF 63 F	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E75FFC85978CB6FFE74B365.taxon	materials_examined	TYPE MATERIAL. — Holotype. Peru • ♂; Cuzco, Pagoreni; VII. 2004, J. Williams; light trap; MLPA. Allotype. Peru • ♀; same data as for holotype. Paratypes. Peru • 6 ♂, 7 ♀; same data as for holotype.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E75FFC85978CB6FFE74B365.taxon	etymology	ETYMOLOGY. — This species is named after a good friend and colleague Saulo de Jesús Soria, in recognition of his wonderful contributions on the Neotropical pollinator species of Ceratopogonidae. DISTRIBUTION. — Atrichopogon soriai Rossi, Marino & Spinelli, n. sp. is known only from the type locality in Kirigueti (11 ° 38 ’ 13 ” S, 73 ° 07 ’ 07 ” W), at elevation of 395 m.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E75FFC85978CB6FFE74B365.taxon	diagnosis	DIAGNOSIS. — Only extant species of Atrichopogon in the New World with pigmented wings, and the fore and midlegs brown and hind leg pale brown.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E75FFC85978CB6FFE74B365.taxon	description	Description of male (Figs 5; 8 C) Head (Fig. 5 A). Golden brown. Ommatidia (Fig. 5 B) with interfacet spicules, broadly abutting medially for length of 4 - 5 ommatidia. Antenna with pedicel and flagellomere 1 dark brown, flagellomeres 2 - 9 and basal half of 10 pale brown, distal half of 10, 11 - 13 slightly darker with plume setae well developed, flagellomeres 2 - 10 at least partially fused, flagellomere 9 - 10 with plume setae, 11 - 13 elongated, 10 slightly longer than 1 - 9; flagellomere 13 with apical nipple, not basally constricted; AR 1.29 - 1.42 (1.34, n = 7). Maxillary palpus (Fig. 5 C) pale brown with third segment short, swollen at midlength, with deep sensory pit opening just beyond midlength; segments 4, 5 separate, broadly abutting; segment 5 conical; PR 1.81 - 2.30 (2.06, n = 7). Proboscis short, head width / mouthparts length 2.47 - 3.13 (2.69, n = 7). Thorax. Dark brown. Scutum with setae arising directly from surface, not in pits; with lateral suture. Paratergite with one stout seta. Anepisternum well developed, broadly bilobed posteriorly. Legs (Fig. 5 E) brown, hind leg paler; fore and midlegs brown except narrow base of midfemur and knees pale brown, tarsi pale brown; hind tibia slightly expanded at apex; hind tibial spur thick, length longer than width of hind tibia at midlength; hind tibial comb with 7 - 8 spines; prothoracic TR 3.50 - 4.20 (3.89, n = 7), mesothoracic TR 3.14 - 3.83 (3.60, n = 7), metathoracic TR 3.00 - 3.57 (3.25, n = 7); claws curved, bifid at tip; empodia present. Wing (Fig. 5 D) with three dark spots, one covering r-m and first radial cell extending to base of m 1 and shortly in m 2, second covering distal 1 / 3 of wing, remaining one in CuA 2; macrotrichiae on membrane in apical portion of cell r 3; both radial cells well formed, second nearly three × longer than first; wing length 0.82 - 0.98 (0.89, n = 7) mm; width 0.32 - 0.40 (0.34, n = 7) mm; CR 0.65 - 0.69 (0.68, n = 7). Halter whitish. Abdomen. Tergites 1 - 7 light brown, 8 amber brown, genitalia amber brown. Genitalia (Figs 5 F; 8 C) of moderate size, segment 9 about equal in width to segment 8. Tergite 9 short, not extending to apex of gonocoxites, posterior margin rounded; sternite 9 narrow, posterior margin broadly concave, with two lateral sclerotized conical teeth, and row of 8 scattered setae. Gonocoxite moderately stout, without medial lobe, twice as long as greatest breadth. Gonostylus tapering from base, 0.9 length of gonocoxite, nearly straight, apex darker, pointed. Aedeagal-parameral complex broad, composed only of ventral portion; basal arch strongly sclerotized, deeply concave; lateral arms directed laterally; posterolateral margins convex; posteromedial prong triangular, tip blunt. Cercus somewhat elongate, apressed against lateral margin of tergite 9. Female adult (Figs 6; 9 C) Head. As for male, with following differences: flagellum light brown, proportions of flagellomeres as shown in Figure 6 A; flagellomeres 1 - 8 longer than broad, vasiform, flagellomeres 9 - 13 elongated; AR 1.53 - 2.23 (1.69, n = 8). Maxillary palpus (Fig. 6 B) with third segment slender, with deep sensory pit opening near midlength; segments 4, 5 separate, their combined length slightly longer than third segment; PR 1.91 - 2.40 (2.11, n = 8); head width / mouthparts length 2.63 - 3.33 (2.88, n = 8). Mandible poorly developed, without teeth. Thorax. Legs with hind tibial comb with 8 - 9 spines, prothoracic TR 3.33 - 4.20 (3.93, n = 8), mesothoracic TR 3.14 - 4.00 (3.66, n = 8), metathoracic TR 3.00 - 3.57 (3.29, n = 8); claws curved, not bifid at tip. Wing (Fig. 6 C) with the same pattern of pigmented membrane, with many macrotrichiae on cells r 3, m 1; scarce on m 2, radial cells narrow, second four × longer than first; wing length 0.88 - 0.98 (0.93, n = 8) mm; width 0.38 - 0.42 (0.40, n = 8) mm; CR 0.65 - 0.74 (0.69, n = 8). Abdomen (Fig. 6 D). Tergites 1 - 6 pale brown with lateral patches darker, segment 7 uniformly yellowish brown, segments 8 - 10 dark brown. Sternite 7 rectangular. Sternite 8 without elongate cuticular extensions, posterior margin nearly straight. Sternite 9 (Fig. 6 E; 9 C) stout, truncate anteriorly, not joined medially. One spermatheca ovoid with short neck, sclerotized, measuring 0.070 - 0.090 (0.076, n = 8) by 0.050 - 0.080 (0.061, n = 8) mm. Cercus dark brown.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E75FFC85978CB6FFE74B365.taxon	discussion	REMARKS Of the Neotropical species with distinctive pigmented wings, Atrichopogon soriai Rossi, Marino & Spinelli, n. sp. is the only one showing the hind leg paler than fore and midlegs. The new species is similar to A. maculipennis on the basis of its distinct pattern of pigmentation of the wing, which possesses two transverse dark bands, one straddling r-m to CuA 2 and other covering the distal 1 / 3 of the wing. However, in A. soriai Rossi, Marino & Spinelli, n. sp. the dark spot on r-m is clearly separated from CuA 2 by a pale broad area. The male of Atrichopogon cavus Felippe-Bauer, 2012 from Brazil is also similar to the male of A. soriai Rossi, Marino & Spinelli, n. sp., but the posterior margin of the tergite 9 reaches the apex of gonocoxites, and the female mandible of A. cavus is armed with 15 teeth. By virtue of the general features of the male genitalia, A. soriai Rossi, Marino & Spinelli, n. sp. is similar to Atrichopogon delecollei Rossi, Marino & Spinelli, n. sp. from Peru. Differences between the two species may be found in the Remark paragraph under the latter species.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E72FFCA5885CA6CFB85B382.taxon	description	(Figs 7; 8 D) urn: lsid: zoobank. org: act: 5 DB 181 CA-FA 83 - 49 C 8 - A 03 D- 2 D 18805429 DB	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E72FFCA5885CA6CFB85B382.taxon	materials_examined	TYPE MATERIAL. — Holotype. Peru • ♂; Cuzco, Kirigueti; VII. 2004, J. Williams; light trap; MLPA.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E72FFCA5885CA6CFB85B382.taxon	etymology	ETYMOLOGY. — This species is named after Jean Claude Delècolle in recognition of his valuable contribution to ceratopogonid taxonomy.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E72FFCA5885CA6CFB85B382.taxon	distribution	DISTRIBUTION. — Atrichopogon delecollei Rossi, Marino & Spinelli, n. sp. is known only from the type locality in Kirigueti (11 ° 38 ’ 13 ” S, 73 ° 07 ’ 07 ” W), at an elevation of 395 m.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E72FFCA5885CA6CFB85B382.taxon	diagnosis	DIAGNOSIS. — Male: only extant species of Atrichopogon in the New World with pigmented wings with the thorax dark brown except ventral portion, most of pleura and legs light brown, abdominal segments 1 - 3 and 5 - 6 light brown with dark patches laterally, posterodorsal prong of aedeagal-parameral complex slender and notched apically. Female unknown.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E72FFCA5885CA6CFB85B382.taxon	description	DESCRIPTION Male (Figs 7; 8 D) Head (Fig. 7 A). Golden brown. Ommatidia (Fig. 7 B) with interfacet spicules, broadly abutting medially for length of five ommatidia. Antenna with pedicel, flagellomeres 1 - 9 and basal half of 10 pale brown, distal half of 10, 11 - 13 slightly darker with plume setae well developed, flagellomeres 2 - 10 at least partially fused, flagellomere 9 - 10 with plume setae, 11 - 13 elongated, 10 slightly longer than 1 - 9; flagellomere 13 with apical nipple, not basally constricted; AR 1.44. Maxillary palpus (Fig. 7 C) pale brown with third segment moderately elongated, swollen for basal 3 / 4, with deep sensory pit opening just beyond midlength; segments 4, 5 separate, broadly abutting; segment 5 conical; PR 2.30. Proboscis short, head width / mouthparts length 2.55. Thorax (Fig. 7 E). Dorsal portion and anepisternum dark brown, ventral portion and most of pleura light brown. Scutum with setae arising directly from surface, not in pits; with lateral suture. Paratergite with one stout seta. Anepisternum well developed, broadly bilobed posteriorly. Legs light brown with basal portion of mid and hind femora, coxae paler; hind tibia slightly expanded at apex; hind tibial spur thick, length longer than width of hind tibia at midlength; hind tibial comb with 6 - 8 spines; prothoracic TR 4.29, mesothoracic TR 4.25, metathoracic TR 3.50; claws curved, bifid at tip; empodia present. Wing (Fig. 7 D) with two distinct dark patches in area of r-m and in cell r 3 posterior to apex of R 3; without macrotrichiae; both radial cells well formed, second nearly five × longer than first; wing length 1.06 mm; width 0.34 mm; CR 0.68. Halter whitish. Abdomen (Fig. 7 F). Segments light brown with lateral margins darker on segments 1 - 3 and 5 - 6, segments 7 - 8 amber brown. Genitalia (Fig. 8 D) of moderate size, dark brown; segment 9 about equal in width to segment 8. Tergite 9 short, not extending to apex of gonocoxite, posterior margin rounded; sternite 9 narrow, posterior margin broadly concave with scattered row of 10 setae along margin of concavity, few setae on lateral margins. Gonocoxite moderately stout, without medial lobe, 1.8 × longer than greatest breadth. Gonostylus paler, tapering from base, 0.8 length of gonocoxite, slightly curved, apex pointed. Aedeagal-parameral complex (Fig. 7 G) broad with rounded posterolateral margins, rounded posteroventrally, posterodorsal prong slender, notched apically, lateral arms directed posterolaterally. Cercus elongate, ventral to tergite 9. Female Unknown.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
03E987B91E72FFCA5885CA6CFB85B382.taxon	discussion	REMARKS The male genitalia of this new species is similar to Atrichopogon soriai Rossi, Marino & Spinelli, n. sp. However, A. soriai Rossi, Marino & Spinelli, n. sp. shows a different pattern of wing pigmentation, with the 1 / 3 distal darker. Besides, in A. soriai Rossi, Marino & Spinelli, n. sp. the pedicel and flagellomere 1 and the fore and mid legs are distinctly darker, and the abdominal segment 1 - 7 are uniformly pale. This species is also similar to A. ornatipennis Clastrier, 1987. Similitudes and differences between the species may be found in the key.	en	Rossi, Juan Francisco, Spinelli, Gustavo Ricardo, Hochman, Sabrina Ivanne, Marino, Pablo Ignacio (2025): Four new species of Atrichopogon Kieffer, 1906 (Diptera, Ceratopogonidae) from Peruvian Amazonia and a key of Neotropical species of this genus with pigmented wings. Zoosystema 47 (13): 185-202, DOI: 10.5252/zoosystema2025v47a13, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a13.pdf
