. Fig. 24. Antenna of E. bilineata. x 55. more or Jess broadly, and sometimes this seam is sharply abbreviated in front, the yellow colour here suddenly stretching in to the stripe. The dorsocentral bristles exceedingly short, uniserial, black; there is a very small humeral bristle, one short but strong notopleural bristle and a postalar bristle, all black, Scutellum grey, with two small, black, marginal bristles at the apex. Pleura yellow, metapleura with a few short, black bristles; prothoracic spiracles yellow. Abdomen yellow with a blackish grey dorsal stripe which is somewhat dilated at t
. Fig. 24. Antenna of E. bilineata. x 55. more or Jess broadly, and sometimes this seam is sharply abbreviated in front, the yellow colour here suddenly stretching in to the stripe. The dorsocentral bristles exceedingly short, uniserial, black; there is a very small humeral bristle, one short but strong notopleural bristle and a postalar bristle, all black, Scutellum grey, with two small, black, marginal bristles at the apex. Pleura yellow, metapleura with a few short, black bristles; prothoracic spiracles yellow. Abdomen yellow with a blackish grey dorsal stripe which is somewhat dilated at the incisures; venter yellow. Abdomen is very sparingly clothed with short, pale yellow hairs, only at the margin of the first segment there are longer and darker hairs. The exterior genitalia are large, the lower lamellæ directed upwards, the posterior edge, which is turned iipwards, is straight and posteriorly drawn out into a process; the upper lamellæ are seen T_ , ,, 1-1 • x- • Fia. 25. E. bilineata, between the upper, anterioriy pomtmg, margms " i o •! r of the lower, they leave an almost cylindrical opening between them. Penis is thick at the base and with some dilatations; it is strongly sinuous, there is especially a loop in the middle, but generally hidden between the lamellæ; it is curved upwards and forwards, the apex is not specially thin. The ventral lamella has some small spines at the apex. The genitalia are yellow, only the upper margin of the upper lamellæ is black; the margins and the posterior process have longish, reddish yellow hairs. Legs yellow or ferruginous, tibiæ slightly darkened towards the apex, tarsi black, paler towards the base; trochanters with the lower interior margin black. The legs have short, blackish or brownish hairs, slightly longer and very dense ventrally; some few small bristles are found on the dorsal side of the tibiæ and at the apex of the femora. Wings somewhat yellowish tinged; veins black or dark brown.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
