160 Annals of the South African Museum. 
of rest ; pleural appendages two, strong and powerful, directed inward 
and dorsad, the dorsal appendage a simple curved hook that is strongly 
chitiuised at the apex ; ventral appendage flattened, the outer angle 
produced into a finger-like lobe that bears a few hairs, longest at the 
apex. 
Genotype, Platylimnobia barnardi, sp. n. (Southern Ethiopian 
region). 
Platylimnobia barnardi, sp. n. 
Wings rudimentary in both sexes ; thoracic dorsum very flattened ; 
coxae enlarged ; colouration brownish-yellow, the thorax with a brown 
dorso-median stripe. 
Male. — Length 4"6-5"3 mm. 
Female. — Length 4-5 mm. 
Fig. 1. — Platylimnohia barnardi, sp. n. Lateral aspect of the head 
and thorax, the legs being removed. 
Kostrum short, dark brown ; palpi dark brown. Antennae with the 
first segment brown, somewhat darker at the tip ; second segment dark 
brown but not so deeply coloured as the flagellum, the segments of 
which are provided with numerous pale hairs and a few bristles. Head 
large, rounded, dark brown with a sparse bloom. 
Mesonotal praescutum narrow, small, light brownish-yellow with a 
broad dark brown median stripe ; anterior margin and the pronotal 
scutellum shiny ; scutal lobes indistinct, yellowish ; scutellum small, 
quite indistinct, brownish-yellow ; postnotum elongate, similar to the 
scutellum in colour. Pleura brownish anteriorly, more yellowish liehind. 
Halteres pale. Legs with the fore and middle coxae brownish, the 
hind coxae yellowish ; trochanters yellowish ; femora dark brown, a 
little paler l)asally ; tibiae and tarsi dark lirown. Wings dull yellow 
with an indistinct venation. 
Abdomen brown. The hypopygium of the male as descriljed under 
the generic characterisation (Plate XIII, fig. 45). Ovipositor with the 
sternal valves powerful, almost straight ; tergal valves more slender. 
Habitat. — South Africa. 
