Genus Grabhamia. 
283 
almost white spot on each side in front, another on each side 
in the middle area, nearer the centre of thorax ; two still further 
back on each side ; some similar scales over the roots of the 
wings and on each side of the bare space before the scutellum 
(in some lights all these areas are almost white); there are also 
two creamy scaled spots between the paler second and third ones 
and some scattered creamy scales; many pale scales just before 
the scutellum ; chaetae golden-brown, especially dense over the 
roots of the wings; scutellum brown, pale, with narrow-curved 
irregular pale creamy-white scales, forming noticeable tufts on 
the lateral lobes which are large ; posterior border-bristles golden- 
brown, darker at their bases; metanotum chestnut-brown ; 
pleurae deep brown with patches of flat white scales and pallid 
bristles. 
Abdomen steely black clothed with dusky black scales and 
Fig. 133. 
Wing of Grabhamia nigeriensis. ?. n. sp. 
with narrow basal bands of pure wLite ; posterior border-bristles 
pale ; basal segment with two basal white spots and long dense 
pale hairs arising from them, smaller ones from the middle of 
the posterior border; venter black with many scattered white 
scales. 
Legs with femora and tibiae black with scattered creamy 
scales, a tuft of creamy scales and brown chaetae at their apices ; 
fore metatarsi and first and second tarsals with a creamy basal 
band, a trace on the third ; mid legs the same but a distinct 
band on the third and a trace on the fourth; hind legs with 
the pale bands much broader. Fore and mid ungues equal and 
uniserrate ; hind equal and simple. 
Wings with brown scales andj> some scattered creamy ones, 
especially on the third long vein; first fork cell longer and 
