Coquillettidia albifera

Coquillettidia albifera (Prado, 1931)

Male genitalia (Fig. 1). Gonocoxite ovate, enlarged, length less than twice basal width, with a dense patch of numerous somewhat curved, moderately long setae on middle portion medially (Fig. 1A,C). Gonostylus approximately half as long as gonocoxite, strongly enlarged towards apical third, apex slender and protuberant; gonostylar claw borne subapically, apex rounded (Fig. 1A,C). Tergum IX lobes rounded, close to each other, with about 10 slender pointed setae (Fig. 1A). Claspette with a broad base and a pair of adjoined, elongated, tapering, unsclerotized setae (Fig. 1B). Proctiger moderately long, wide at base, paraproct sclerotized, with 6 or 7 short apical teeth (Fig. 1A). Aedeagus short, lateral plates expanded laterally at apical third (Fig. 1A).

Eggs (Fig. 2). Eggs of Cq. albifera are elliptical and black, with the anterior region elongate and tubuliform. Length 661 ± 2.59 µm, width in the central region 183 ± 2.59 µm, length/width ratio 3.61 ± 0.08. Dorsal surface covered by an external chorionic network with diversified shapes (hexagonal, pentagonal and rectangular) (Fig. 2B), similar to a spider’s web, and large external chorionic tubercles randomly distributed (Fig. 2C). The tubercles on the anterior and posterior areas of the dorsal surface have a rounded shape and some are oval with a hemispheric base of 4.71 ± 0.75 µm (n = 10). Chorionic tubercles on the ventral surface are irregular, and those near the micropylar collar are narrower (Fig. 2D). It was not possible to clearly view the micropyle; thus, it was not measured. However, it is surrounded by a porous micropylar disc (18.91 ± 0.65 µm) and by a continuous and protuberant collar (4.4 ± 0.3 µm) (Fig. 2D). The anterior extremity is elongate and has tubercles similar to those of the posterior region (Fig. 2A). No structure or vestige of cement for fixation, like that observed in Haemagogus capricornii Lutz (Alencar et al. 2005) and Ma. titillans (Walker) (Linley et al. 1986), was observed.