1718 
CATALOGUE OF 
Antennae validae, late pectinatae. Abdomen alas posticas longe su- 
perans. Pedes validi ; tibiae posticae calcaribus duobus apicalibus 
mediocriter longis. Alae angustae ; anticae longiusculae, apud cos- 
tam rectae, apice rotundatae, margine exteriore perobliquo; posticae 
breviusculae. 
Male. Body stout. Head and thorax very hairy. Palpi 
rather short ; third joint very small. Antennae stout, deeply pecti- 
nated, about half the length of the body. Abdomen rather long, 
tapering from near the base to the tip. Legs stout ; hind tibiae with 
two moderarely long apical spurs. Wings narrow. Fore wings 
very much longer than the hind wings, straight in front, rounded 
at the tips, vory oblique along the exterior border ; first, second and 
third inferior vein nearly contiguous at the base ; fourth more than 
twice further from the third than the third is from the first Hind 
wings extending to nearly half the length of the abdomen. 
The Synopsis, p. 586, includes this genus with Sciathos , from 
wdiich it is distinguished by the preceding characters. It is some- 
what allied to Antheua. 
1. Decimia bicolora. 
Mas. Fusca ; caput , thorax , pectus , abdominis fasciae pedesque 
lutea ; alae cinereo-fuscae , apud costam luteae. 
Male . Brown. Head, thorax, pectus, fore borders of the ab- 
dominal segments and legs thickly clothed with luteous hairs. An- 
tennae testaceous above. Wings grayish brown, slightly hyaline ; 
costa luteous ; cilias testaceous. Hind wings rather paler than the 
fore wings. Length of the body 8—9 lines ; of the wings 14 — 16 
lines. 
Var. j3. Wings towards the base and fore wings along the 
costa luteous. 
a. South Africa. Presented hy Dr. A. Smith. 
b. Port Natal. From Mr. Stevens’ collection. 
Genus ARCHYLUS. 
Mas. Corpus sublineare, subcylindricum, mediocriter longum 
et robustum. Palpi brevissimi. Antennas subtus serratae aut sub- 
pectinatae. Pedes graciles ; tibiae posticae calcaribus nullis. Alae 
latae ; anticae apud costam vix convexae, apice rotundatae, margine 
exteriore sat obliquo ; posticae abdomen vix superantes. 
