1926 CATALOGUE OF 



one-third of the length from the base, slightly pectinated from tbeuce 

 to the tips. Thorax very thick. Abdomen much le>s thick than the 

 thorax, extending far beyond the hind wings ; apical tuft very large. 

 Legs short, stout, slightly pilose; tibiae without spurs. Wing nar- 

 row. Fore wings long, rounded at the tips ; exterior border convex, 

 extremely oblique. 



Casphalia flavicollis. 



Mas. Nigro-fusca ; corpus subtus ochraceum ; caput JUvum; 

 thorax anticeflavui ; abdominis fasciculus apicalis ochra 

 alee postlcce pa/fide Jlavcc, macula margineqi iris. 



Male. Blackisb brown. Head, palpi and anlei black. 



Fore tegulae of the thorax yellow. Pectus, apical tuft and under 

 side of the abdomen ochraceous. Hind wi >w, with a 



black border, which is very broad about the tips, and with a 

 spot which joins the costal part of the bord: Lb of the body 



6 lines; of the wings 1 * 3 lines. 



a. Sierra Leone. From Mr. FoxcroiYs collection. 



Genus CREXA. 



Mas. Corpus crassum, dense pilosum. Proboscis nulla. Palpi 

 porrecti, robusti, pilosi, caput non superantes ; articulus 3us breris- 

 sirnus. Antennae breves, late pectinatae. Thorax postice cristatus. 

 Abdomen subcari Datura, alas posticas Longe Buperans; laten sub- 

 fasciculata; fasciculus apicalis brevis. Pedes 1 . sub- 



pilosi. Alas anticas an gusts, vix acuta?, margine exteriore perobliquo 

 fere recto ; posticae breves, lata?. 



Male. Body very stout, densely pilose. Proboscis obsolete. 

 Palpi stout, porrect, pilose, not extending beyond the head ; third 

 joint extremely short. Antennae short, broadly pectinated. Hind 

 part of the thorax transversely crested. Abdomen with a slight 

 dorsal ridge, extending much beyond the hind wings ; small tufts 

 along each side ; apical tuft short. Legs short, stout, slightly 

 pilose. Fore wings narrow, hardly acute ; exterior border hardly 

 rounded, extremely oblique. Hind wings broad, much rounded, 

 not more than half the length of the fore wiugs. 



