Lasiocampidie in the British Museum. 323 



these two species. B. conspcrsa is larger than indeeora and 

 has a yellowish and not a grey ground-colour ; from vcnosa 

 it differs in having the thorax and the fore-wings much 

 darker and suffused with grey or fuscous ; the veins are 

 not so distinctly yellow as in venosa. 



Olyra rectilineata, n. sp. 



(Plate XVI ; fig. 7.) 



9 . Dark reddish brown ; abdominal segments above with pale 

 hind marginal borders ; fore-wing above with two entirely straight 

 and erect transverse parallel pale yellowish lines, one before the 

 other behind middle, an irregular submarginal series of short 

 yellowish erect lines between the veins ; hind-wing with a fine 

 yellowish line from costal margin at least to end of cell (sometimes 

 obsolete) ; fore-wing below much paler yellowish, reddish brown at 

 apex and at termen ; hind-wing below reddish brown with two, in 

 the middle very angulate, transverse, pale yellowish lines. 

 Expanse 39-40 mm. 



Gazaland : Mt. Chirinda (G. A. K. Marshall), Decem- 

 ber. Mashonaland (Bobbie). 



Two females, one in Brit. Museum, one in Museum 

 Holmiae. 



Haplopacha, nov. gen. 



Palpi entirely hidden by long hairs ; frons with slight corneous pro- 

 minence. Antennae of male bipectinate to apex ; branches moder- 

 ately long. Head, thorax and legs clothed with hairlike scales. 

 Fore-legs slender, unarmed ; middle and hind tibice with two apical 

 spurs. Abdomen short not reaching beyond tornus. Cell of both 

 wings open. Fore-iving short, triangular ; vein 2 from behind middle 

 of cell, slightly curved, 3 from slightly nearer to 4 than to 3, 4 and 

 5 from hind angle, 6 and 7 stalked, 8 from the long stalk of 9 and 

 10, 9 running to termen near apex. Hind-wing short, obtuse ; costal 

 margin nearly straight ; vein 2 from middle of cell, 3 nearer to 4, 4 

 and 5 from the same point, 7 well separated from 8, 8 anastomosing 

 with cell near base, forming a very narrow pre-costal cell, one 

 thick, curved accessory veinlet at base. 



A very distinct genus, allied to Chondrostega and Chon- 

 drostcgoides, but differing from both in vein 8 of fore-wing 

 being emitted from the long stalk of 9 and 10 and vein 8 

 of hind- wing not anastomosing from base with the cell, 

 but forming a narrow precostal cell. 



