Culicoides huaynacapaci, a new species from the Department of Cajamarca, Peru (Diptera, Ceratopogonidae)

Abstract

ABSTRACT.A new species of Culicoides of the subgenus Mataemyia Vargas, Culicoides huaynacapaci Felippe-Bauer, is described and illustrated based on female and male specimens collected biting humans in Department of Cajamarca, in Peruvian Amazonia. The new species is compared with its similar congener C. albuquerquei Wirth & Blanton.KEYWORDS. Diptera, Ceratopogonidae, Culicoides (Mataemyia) huaynacapaci, Neotropical bloodsucking midge, Peru. The general terminology used is that employed in papers on Culicoides by WIRTH & BLANTON (1959, 1973, 1974 for Panama, the Amazon Basin, and the West Indies, as well as the atlas of wing photographs of Neotropical species by WIRTH et al. (1988). The terms of wing veins follow the system of the Manual of Nearctic Diptera (MAC ALPINE et al., 1981), with modifications proposed by SZADZIEWSKI (1996). All measurements are in micrometers, except those of the wings which are in millimeters. RESUMO. Uma nova espécie deCulicoides huaynacapaci Felippe-Bauer, sp. nov. Diagnosis. A species of the subgenus Mataemyia very similar to C. albuquerquei Wirth & Blanton, from which it can be distinguished by its larger size (wing length 1.22-1.38 mm), costal ratio (0.63-0.66) and by the presence of sensilla coeloconica on the flagellomeres 1, (5), 6-8 on female. Male genitalia with distal portion of the aedeagus slightly expanded on lateral margin, ending in a pair of direct, pointed processes with straight emargination.Female. Wing length 1.22-1.38 (1.30, n=10) mm; breadth 0.54-0.62 (0.58, n = 10) mm.Head. Brown. Eyes (Fig. 3) nearly contiguous, bare. Pedicel brown; flagellum (Fig. 4) (Fig. 7). Palpus (Figs. 8, 10) brown; lengths of segments 21-53-64-21-27 µm (n=9); 3rd segment slightly swollen distally, with a moderately deep sensory pit on distal portion; palpal ratio 2.2-2.8 (2.4, n=9). Proboscis moderately short; P/H ratio 0.64-0.76 (0.69, n=10); mandible with 13 teeth.Thorax. Brown; without definite pattern in slide mounted specimens. Legs mostly brown; femora with subbasal, subapical pale bands, tibiae with subbasal pale bands; hind tibia pale apically (Fig. 11); hind tibial comb ( Fig. 6) with four spines, the two nearest the spur longest. Tarsi (Fig. 9) pale, tarsomeres of hind leg darkest. Wing ( Fig. 1) with pattern as in photographs: cell r 3 with three pale spots, two well separated poststigmatic spots, anterior one small, rounded, reaching wing margin, posterior one transverse, located beyond 2 nd radial cell about halfway between it and vein M 1 , apical spot double, oblique, broadly reaching wing margin; cell m 1 with two pale spots, distal most far from wing margin, longer than basal one; cell m 2 with a double pale spot lying between medial, mediocubital forks, a pale spot at wing margin; cell cua 1 with round pale spot nearly reaching wing margin; anal cell with two distal round pale spots; wing base with faint pale spot; vein M 1 with faint distal pale spot; veins M 2 , CuA 1 and CuA 2 dark; macrotrichia sparce, extending from base to wing tip; 2 nd radial cell with distinc...