Forcipomyia (Metaforcipomyia) heroni , Spinelli, Gustavo R., Marino, Pablo I. & Borkent, Art, 2012

Spinelli, Gustavo R., Marino, Pablo I. & Borkent, Art, 2012, A revision of Biting Midges of the Subgenera Forcipomyia (Metaforcipomyia) and F. (Saliohelea) from Costa Rica (Diptera: Ceratopogonidae), Zootaxa 3419, pp. 1-52: 31-33

publication ID

10.5281/zenodo.215031

persistent identifier

http://treatment.plazi.org/id/03A7878C-E368-FFE6-53D2-BCA18121FAFD

treatment provided by

Plazi

scientific name

Forcipomyia (Metaforcipomyia) heroni
status

n. sp.

Forcipomyia (Metaforcipomyia) heroni  n. sp.

( Figs. 97–106View FIGURES 97 – 106, 118View FIGURES 116 – 119, 143View FIGURES 142 – 143)

Diagnosis. Male: only species of Neotropical Forcipomyia (Metaforcipomyia)  with the following combination of characters: a hind tarsal ratio of 2.10–2.33, wing with a dark patch on its anterior margin and at the apices of M 2, CuA 1 and CuA 2, hind leg with tarsomeres 1–2 brown, contrasting with pale tarsomeres 3–5, parameres present and the aedeagus nearly triangular. Female: only species of Neotropical Forcipomyia (Metaforcipomyia)  with the spermathecae pyriform, very unequal in size.

Description. Male. Head. Brown. Eyes abutting medially for length of two-three ommatidia. Antenna ( Fig. 97View FIGURES 97 – 106) pale brown with plume setae well-developed, flagellomere 10 1.36–1.55 (1.43, n = 10) X longer than flagellomere 11, flagellomeres 10–13 elongate; flagellomere 13 with apical nipple slightly constricted basally; AR 1.06–1.15 (1.12, n = 10). Palpus ( Fig. 98View FIGURES 97 – 106) with segment 3 short, slightly swollen proximally, with shallow sensory pit opening at midlength; PR 2.40 –3.00 (2.68, n = 10). Labrum tapering apically.

Thorax. Brown; scutellum with 6 strong setae, and several minor ones. Legs uniformly pale brown; apex of hind tibia with 4–5 spines; tarsomeres with pectinate scales; tarsomere 1 of foreleg with row of dozen spine-like bristles, tarsomere 1 of hind leg with two rows of thick setae, tarsomeres 3–5 slightly paler; foreleg TR 2.75 –3.00 (2.90, n = 10), midleg TR 2.22–2.50 (2.31, n = 8), hind leg TR 2.10–2.33 (2.23, n = 8); claws curved, moderately stout. Wing ( Figs. 99View FIGURES 97 – 106, 118View FIGURES 116 – 119) with pattern of pigmented membrane, with dark patch on its anterior margin and at apices of M 2, CuA 1 and CuA 2; intercalary vein not visible; radial cells closed; fork of cubitus situated proximad to level of apex of costa; wing length 0.72–0.86 (0.80, n = 10) mm; breadth 0.23–0.28 (0.26, n = 9) mm; CR 0.42–0.46 (0.44, n = 10). Halter whitish.

Abdomen. Tergites uniformly brown. Genitalia ( Fig. 100View FIGURES 97 – 106): Dark brown except gonostyli pale. Tergite 9 short, only extending to 1 / 5 length of gonocoxite; posterior margin broadly rounded; cercus lobe-like, slightly produced beyond midlength of gonocoxite; sternite 9 broad, posterior margin nearly straight, with single row of setae. Gonocoxite moderately stout, 2.15 X longer than greatest breadth; gonostylus 0.90 length of gonocoxite, nearly straight, narrowed to tip. Parameres represented by a pointed, posteromesally directed projection, gonocoxal apodemes deeply concave. Aedeagus ( Fig. 101View FIGURES 97 – 106) nearly triangular, progressively narrowed to blunt tip; basal arch extending to 0.10 of total length.

Female. As for male, with following differences; antenna with flagellomeres 1–8 flask-shaped, slightly longer than broad; flagellomeres 9–13 not elongate, proportions as shown in Fig. 102View FIGURES 97 – 106; AR 0.72–0.85 (0.79, n = 15). Palpus ( Fig. 103View FIGURES 97 – 106) pale brown; segment 3 short, slightly swollen proximally with broad shallow sensory pit opening on distal third; segments 4, 5 completely fused, shorter than segment 3; PR 1.60–2.20 (1.96, n = 15).

Thorax. Brown except scutellum dark brown. Legs pale brown, foreleg TR 2.96 (2.67–3.17, n = 14), midleg TR 2.30 (2.17–2.50, n = 14), hind leg TR 2.47 (2.29–2.67, n = 15), claws curved. Wing ( Fig. 104View FIGURES 97 – 106) plain, without pattern of pigmented membrane; radial cells closed; wing length 0.69 (0.62–0.78, n = 15) mm; breadth 0.30 (0.27–0.33, n = 15) mm; CR 0.46 (0.44–0.47, n = 15).

Abdomen. Tergites uniformly brown. Genital sclerotization ( Fig. 105View FIGURES 97 – 106) with anterior margin rounded. Two spermathecae ( Fig. 106View FIGURES 97 – 106) ovoid with short necks, sclerotized, very unequal in size, measuring 0.060 by 0.048 mm, neck 0.004 mm, and 0.038 by 0.034 mm, neck 0.002 mm. Cercus pale.

Distribution. This species is known only from Costa Rica, from sea level to 1200 meters ( Fig. 143View FIGURES 142 – 143).

Taxonomic discussion. Males and females were collected at the same locality and date at the type locality at La Selva Biological Station and in the Osa Peninsula (Est. Agujas).

This species is readily distinguished from other Neotropical species of the subgenus by the nearly triangular male aedeagus that is progressively narrowed to a blunt tip and the female with greatly unequal spermathecae.

Type material. Holotype male on microscope slide, labeled “ HOLOTYPE Forcipomyia (Metaforcipomyia) heroni Spinelli, Marino and Borkent  , Costa Rica, 3 km E Cahuita, 27 -X- 1993, A. Borkent, CD 1633 ” ( CNCIAbout CNCI). Paratypes, 15 males and 48 females (1 male, 1 female, USNMAbout USNM; 1 male, 2 females, MLPA; 4 males, 14 females, CNCIAbout CNCI; 9 males, 31 females, INBCAbout INBC) as follows: same data as holotype, 5 females ( INBCAbout INBC). Same data as holotype except 28 -X- 1993, CD 1635, 3 males, 5 females ( CNCIAbout CNCI). Same data as holotype except CD 1641, 1 female ( MLPA). Same data as holotype except 29 -X- 1993, CD 1642, 2 males, 6 females ( INBCAbout INBC). Costa Rica, 2 km NE Tárcoles, 11 -XI- 1993, A. Borkent, CD 1657, 3 females ( CNCIAbout CNCI). Same data except CD 1714, 1 female ( INBCAbout INBC). Costa Rica, Volcán Arenal, 4 -I- 1994, A. Borkent, CD 1731, 3 females ( CNCIAbout CNCI). Costa Rica, Alajuela prov., San Carlos, Arenal NP, Sector La Colada, 600 m, 1 / 26 -X- 1999, G. Carballo, Malaise tp., CD 5249, 4 males ( INBCAbout INBC). Same data except Send. Pilón, 30 -XI / 22 -XII- 1999, CD 5362, 1 male ( MLPA). Costa Rica, Alajuela prov., San Carlos, Arenal NP, Sendero Colada, 600 m, 28 -VIII / 8 -IX- 1999, G. Carballo, Malaise tp., CD 5371, 1 female ( INBCAbout INBC). Costa Rica, Heredia, La Selva Biol. Sta., Pto. Viejo de la Sarapiquí, 7 -V- 1989, B. V. Brown, CD 1260, 1 male, 3 females ( CNCIAbout CNCI). Same data except 23 -IV- 1989, CD 1264, 1 male ( INBCAbout INBC). Same data except 40 m, 18 -V- 1989, CD 1203, 1 male ( INBCAbout INBC). Costa Rica, Limón prov., R. Biol. Hitoy Cerere, 300 m, 17 -IV- 1999, F. Umaña, CD 5067, 2 females ( INBCAbout INBC). Costa Rica, Puntarenas prov., Pto. Osa, Est. Agujas, 300 m, 15 -VII / 15 -VIII- 1999, J. A. Azofeifa, CD 5089, 4 females (3 females, INBCAbout INBC; 1 female, MLPA). Costa Rica, Puntarenas prov., Golfito, Est. Agujas, 250–350 m, 15 -VI / 15 -VII- 1999, J. Azofeifa, Malaise tp., CD 5156, 1 female ( INBCAbout INBC). Same data except 15 -VII / 15 - VIII- 1999, CD 5231, 1 male, 1 female ( USNMAbout USNM). Costa Rica, Puntarenas prov., Golfito, Est. Agujas, Cerro Rincón, 745 m, 15 -II- 2000, J. Azofeifa, Malaise tp., CD 5247, 1 female ( INBCAbout INBC). Costa Rica, Puntarenas prov., Corcovado NP, Las Quebraditas, 640 m, 15 -X / 15 -XI- 1999, J. A. Azofeifa, Malaise tp., CD 5101, 2 females ( INBCAbout INBC). Costa Rica, Puntarenas prov., Golfito, Est. Agujas, 250–350 m, 15 -V / 15 -VI- 1999, J. Azofeifa, Malaise tp., CD 5335, 2 females ( INBCAbout INBC). Same data except 15 -IX / 15 -X-1999, 1 female ( INBCAbout INBC), CD 5226. Costa Rica, A.C.: Osa, Golfito, Corcovado NP, Est. Agujas, Cerro Quebraditos, 700–800 m, 15 -VII / 15 -VIII- 2000, J. A. Azofeifa Zuñiga, Malaise tp., CD 5313, 1 female ( INBCAbout INBC). Costa Rica, Puntarenas prov., Coto Brus, Progreso, Fca. Cafrosa, 2 km al NNE de la Escuela de Progreso, 1320 m, 23 -XI- 1995, M. Chinchilla, LS 318900View Materials N/ 595630 E, Malaise tp., # 7473, CD 5025, 1 male ( INBCAbout INBC). Costa Rica, Puntarenas prov., Coto Brus, Progreso, Sabalito, Fca. Marcos Morales, 1180 m, 25 -XI- 1995, M. Segura, LS 317900View Materials N/ 594600 E, Malaise tp., # 32624, CD 5027, 1 female ( INBCAbout INBC). Costa Rica, San José prov., Pérez Zeledón, Est. Santa Elena ACLA P., 14 -II / 16 -III- 1996, Segura – Alfaro, LS 371700View Materials N/ 507800 E, # 8527, CD 5014, 4 females ( INBCAbout INBC).

Derivation of specific epithet. This species is named after our good friend and colleague Herón Huerta, from the Instituto de Diagnóstico y Referencia Epidemiológicos, México City, D.F., in recognition of his important contributions to our understanding of New World Ceratopogonidae  .

CNCI

Canadian National Collection Insects

USNM

Smithsonian Institution, National Museum of Natural History

INBC

Instituto Nacional de Biodiversidad (INBio)