Culicoides baniwa Felippe-Bauer, 2009

Castellón, Eloy Guillermo, Pessoa, Felipe Arley Costa, Spinelli, Gustavo & Felippe-Bauer, Maria Luiza, 2012, Description of the male of Culicoides (Hoffmania) baniwa Felippe-Bauer of the hylas species group (Diptera: Ceratopogonidae), Zootaxa 3401, pp. 66-68 : 66-68

Culicoides baniwa Felippe-Bauer, 2009 ( Figs. 1–10 )

Culicoides baniwa Felippe-Bauer , (in Felippe-Bauer et al., 2009): 852 (female; Brazil; figs. antenna, palpus, legs, spermathecae, wing photo; in key; distribution).

Female diagnosis: Only species in the hylas group of the subgenus Hoffmania Fox with a long proboscis (P/H ratio 1.48), double pale spots in r3, with one crossing the second radial cell and other in distal portion of r3, absence of the pale spot in front of the base of M1, mid femur dark to tip and a pale fifth palpal segment.

Male diagnosis: Similar to female with usual sexual differences.The male genitalia of C. baniwa is notched posteromedially, apicolateral processes absent, posterior margin gonostylus pale, broad basally, abruptly tapering to slender apex. Parameres broadly fused at basal half.

Male description: Antennal pedicel dark brown; flagellomeres pale brown, basal portion of flagellomeres pale, distal portion darker. Sensilla coeloconica on each of flagellomeres 1–13, two on 1, one on each of 2–13. Palpus ( Figs. 1–2 ) brown except first, fifth segments entirely pale; third, fourth segments pale basally, P.R. 3.60. P/H ratio: 0.64–0.68 (0.67, n=4) Wing length 1.25–1.33 mm (1.29, n=5), breadth 0.45–0.50 (0.48, n=5) mm, costal ratio 0.54–0.67 (0.67, n=5) pigmentation pattern as in Fig. 3 . Legs ( Figs. 4–6 ) with mid-. hind femora entirely dark brown, hind tibial comb with seven spines. Terminalia ( Figs. 7–9 ): tergite 9 reaching level of apex of gonocoxite distally, apicolateral processes absent, posterior margin rounded, notched posteromedially; (evident in figs 7 and 8); sternite 9 with shallow posteromedial excavation. Gonocoxite 2 X longer than broad, ventral root small, dorsal root long, slender; gonostylus pale, broad basally, abruptly tapering to slender apex, nearly straight for distal half. Parameres ( Fig. 10 ) broadly fused at basal half; base slightly excavated anteriorly; distal portion U-shaped at base, each half abruptly tapering to elongate, slender filament with very fine finge of spicules. Aedeagus ( Fig. 9 ) triangular with low, straight basal arch; basal arms slender, slightly curved; distal portion progressively tapering to tip; posteromedian process strongly sclerotized, sclerotization extending anteriorly nearly to basal arch, apex with rounded papilla.

Discussion: Although the males herein recorded were not collected associated with females, they exhibit the same extragenital characters diagnostic for the females of C. baniwa : fifth palpal segment pale, mid femur dark to tip, presence of a double distal pale spot in cell r3, and absence of pale spot in front of base of vein M1.The male genitalia of C. baniwa is similar to that of C. hylas Macfie. However , in the latter species tergite 9 is shorter, not notched posteromedially and bears a small, posteromesal papilliform process, the gonostylus is curved and progressively tapering distally, the basal arch of the parameres is nearly straight and the sclerotization of the posteromedian process of the aedeagus is shorter and not abutting basal arch. Probably the occurrence of this species, with a new records in Cuzco Province, around 1.300 kilometers from the type locality, is well distributed in all the Amazon basin.

Specimens examined: Areas of Collection: 1 male, at light, Brazil - Br. 307, Rodovia Perimetral Norte, Km. 54, Torre da LBA, São Gabriel da Cachoeira (00º 12' 44.6"; 66º 53' 00" W), 84 m masl; Sabá Gómes, P. Santos, E.G. Castellón, 24/09 -01/10 /2008, near of type locality of the species. Perú - Cuzco prov., Pagoreni (11º 42' 21,9'' S - 72º 54' 21,9'' W), 510 m masl, 15-II-2004, J.D. Williams, 1 male, at light; Perú, Cuzco prov., Kirigueti (11º 38' 13'' S - 73º 07' 07'' W), 395 masl, 24-II-2004, J.D. Williams, 3 males, at light.

Figures

FIGURES 1 – 10. Culicoides baniwa Felippe-Bauer, male. 1. Head, anterior view. 2. Mouth part showing palpi. 3. Wing. 4. Foreleg. 5. Midleg. 6. Hind leg. 7. Terminalia of Peruvian specimen, dorsal view. 8. Terminalia of Brazilian specimen, dorsal view. 9. Part of genitalia with parameres removed, part of tergite 9 not completed drawn, dorsal view. 10. Parameres.