. 34 Orthonhapha brachycera. margin of the segments there are black, bristly hairs. Venter some- what greyish, with pale hairs. Hypopygium rather small, blackish grey at the basal part, the appendages yellow; it is constructed al- most as in Wiedemanni, but is relatively shorter, and there is no distinct middle ventral lobe; the posterior ventral lobes styliform and curved towards each other, black at the apex; at the base of each lobe are two hairs, placed on a peduncle; the outer lamellae are united and bear long, black hairs at the apex; the basal part of the inner lamellae is not formed as
. 34 Orthonhapha brachycera. margin of the segments there are black, bristly hairs. Venter some- what greyish, with pale hairs. Hypopygium rather small, blackish grey at the basal part, the appendages yellow; it is constructed al- most as in Wiedemanni, but is relatively shorter, and there is no distinct middle ventral lobe; the posterior ventral lobes styliform and curved towards each other, black at the apex; at the base of each lobe are two hairs, placed on a peduncle; the outer lamellae are united and bear long, black hairs at the apex; the basal part of the inner lamellae is not formed as in Fig. 8. Hypopygium of S. lonfjulus. ^Viedemamii, but is simple and straight, the styliform apices pro- ject beyond the outer lamellae in such a way, that it looks as if they were prolongations of this. Legs yellow, posterior coxae grey, the hind pair a little yellowish behind, tarsi dark brown or blackish. Front metatarsi as long and middle metatarsi almost as long as the four following joints, hind metatarsi very slightly longer than the second joint. On the middle tarsi the first, second and third joints are a little dilated at the end. The front coxae have a row of spine- like, yellow bristles at the anterior side, the middle coxae have some yellow hairs, and the hind coxae a yellow bristle on the outer side. The front femora have five yellow bristles below; for the rest the legs have short, brownish or blackish hairs, and they are almost bristle- less; the middle femora bare below; of bristles there are only some small ones on the front tibiae above, and a row above on the hind tibiae, further a preapical bristle on the hind femora, and a bristle near the base on the anterior side of the middle tibiae; the apical bristles on the tibiae small; the hairs on the middle tibiae are erect. Wings hyaline or a little greyish; veins blackish, the lower branch of the discal fork somewhat faint; the posterior cross-vein about as long as the discal vein to the fork, and shorter tha
Size: 2810px × 1779px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
