238 Annals of the South African Museum. 



GEN. CYMATOPACHA, nov. gen. 



Palpi broad, hardly reaching beyond the frous. Eyes smooth. 

 Antennae of female bipectinate to apex. Head and thorax clothed 

 with long hairs. Tarsi without hairs. Hind tibiae with short apical 

 spurs. Wings as in Pachypasa, but with termen distinctly and 

 regularly sinuous ; hind wings with costa lobed at base and slightly 

 incised before middle. Fore wing with veins 4 and 5 from nearly the 

 same point ; 6 and 7 stalked, 8 from apex of cell ; 9 and 10 stalked, 

 shorter than their stalk ; 9 to termen. Hind wing with veins 4 and 5 

 on a short stalk ; 8 anastomosing with 7 near base ; praecostal cell 

 small, emitting a cluster of accessory costal veinlets into the basal 

 lobe. 



Cymatopacha agrees in venation with Mimopacha, Auriv., but differs 

 by having the termen regularly sinuous and the hind wing without 

 hyaline discal spot. From Pacliypa.sa it differs by the venation of the 

 fore wing. 



CYMATOPACHA OBSCURA, n. sp. 



9 . Hoary grey ; head and thorax fuscous ; wings dark grey, 

 densely suffused with fuscous ; basal and medial area of fore wing 

 dark fuscous, distally determined by the dark dentate very oblique 

 post-medial line, which is filled out distally with yellowish grey ; an 

 indistinct- fuscous and yellowish dentate submarginal line from near 

 apex to hind margin behind middle. Hind wing paler on inner 

 margin with the submarginal line of fore wing indistinctly continued 

 across the middle. Underside nearly as the upperside but much paler. 

 Ex pans. 81 mm. 



S. Ehodesia : Bulawayo (E. W. E. Tucker). S. African Museum. 



GEN. PACHYPASA, Walk. 

 PACHYPASA SERICEOFASCIATA, n. sp. 



$ . Fawn colour. Head and thorax above cinereous with a slight 

 violaceous tint ; thorax and abdomen below as well as the legs darker 

 brownish; abdomen luteous. Fore wing with two oblique irregular 

 pale violaceous grey bands, sometimes confluent at middle ; proximal 

 band from middle of costa to hind margin before middle, slightly 

 excurved in middle ; distal band from apex to hind margin a little 

 behind middle, slightly bordered with fuscous on inner side and 

 strongly dilated on outer side between vein 4 and tornus ; an obsolete 

 dark mark at apex of cell ; no other markings. Hind wing uniformly 



