LEPIDOPTERA HETEROCERA. 
75 
exteriore perobliquo. Mas.— Antennae sat late pectinate. Fcem 
Antennae simplices. 
Sphinx adscita, p., Cramer . 
Thyretes, Boisd. MSS. 
Body rather long and slender. Head and thorax pilose. 
Proboscis short. Palpi short, slender; third joint lanceolate. An- 
tennae much more than half the length of the body. Abdomen 
pubescent, extending for half its length beyond the hind wings. 
Legs rather long ; hind tibiae with two minute apical spurs. Wings 
long and narrow, partly limpid. Fore wings straight along the 
costa, rounded at the tips; exterior border very oblique ; second in- 
ferior vein as far from the third as from the first ; third more than 
four times further from the fourth than from the second. Male.— 
Antennae moderately deeply pectinated. Female. —Antennae simple. 
1. Thyretes Hippotes. 
Alba; thorax fusco bivittatus aut disco fusco ; abdomen e maculis 
luteis bivittatum ; alee anticce fuscce , vitta discali maculari 
limpida ; posticce limpidee , margine interrupte fusco. 
Sphinx adscita Hippotes, Cram. Pap. Exot. iii. 166, pi. 286, f. A. 
a, b. South Africa. From Mr. Argent’s collection. 
c. South Africa. From M. Becker’s collection. 
d. Port Natal. From M. Gueinzius’ collection. 
e. Cape. From M. Drege’s collection. 
/. Port Natal. From Dr. Krauss* collection. 
Genus 15. ABNA. 
Mas et fcem. Corpus gracillimum. Proboscis brevis. Palpi 
breves, graciles, caput vix superantes. Antennae setaceae, simplices, 
gracillimae, thorace duplo longiores. Abdomen alas posticas dimidio 
superans. Pedes longiusculi, gracillimi; tibiae posticae calcaribus 
quatuor longis. Alae angustae, maculis vitveis ; anticae apud cos- 
tain recUe, apice rotundatae, margine exteriore perobliquo. Mas . — 
Abdomen apice fasciculatum. 
Male and female. Body very slender. Proboscis short. 
Palpi short, slender, hardly extending beyond the head. Antennae 
setaceous, simple, very slender, full twice the length of the thorax. 
Abdomen extending for about half its length beyond the hind wings. 
Legs rather long, very slender; hind tibiae with four long spurs. 
H 2 
