318 SPHINGIDiE. 



an angle of about 45° to the longitudinal axis of the pupa, 

 dorsal line of 3 and 4 at a less steep angle ; 6 and 7 tumid 

 dorso- laterally, 7 to 9 flattened dorsally ; hind margin of 

 11 dilated and undercut, the base of 12 fitting into it as in 

 Acosmeryx pupse ; fore leg equal to antenna and about half 

 length of wing-case ; a narrow coxal piece. Surface of head 

 smooth except for the tops of the bosses, which are rugose ; 

 thorax shining and smooth except for very superficial corru- 

 gations ; sculpturing on segment 4 in the form of a smooth, 

 slightly raised, transverse weal, placed centrally and reaching 

 from the subdorsal to the dorso -lateral region ; abdomen 

 shining and coarsely pitted, the pits better defined on seg- 

 ments 9 to 14. Spiracle of 2 indicated by a pear-shaped slit 

 lying between a curved emargination of the hind margin 

 of 2 and an oblong lobe projecting from the front margin of 

 3 ; remaining spiracles broadly oval, the central slit with 

 raised edges. Cremaster a stout cone with a bifid tip formed 

 of two conical teeth. Colour dark reddish -brown, hind 

 bevels of segments 8 to 10 dull black, spiracles and spiracular 

 lobe of 3 dull black, cremaster shining black. Length 36 mm. ; 

 breadth 10 mm. 



Habits. — Food-plant : Strychnos nuxvomica Linn, and other 

 species of the family Loganiacese. Though the colour of the 

 pupa is similar to that of the species which pupate under- 

 ground, the pupa of this species is formed in a rough cocoon 

 on the surface. It produces a dull knocking sound when 

 alarmed. The moth has been seen feeding at dusk, but does 

 not appear to be attracted by light. 



Genus ENPINANGA Rothschild & Jordan. 

 Roths. & Jord., 1903, p. 545 ; id., 1907, p. 102. 



Genotype : vigens (But!.). 



Imago. — " <#$>. Differs from Angonyx in the following 

 characters : — Palpus and eye smaller ; antenna much shorter 

 in both sexes than the cell of the fore wing ; first segment 

 of fore tarsus much shorter than fore tibia ; spurs short, 

 longer terminal one of hind tibia about one -third the length 

 of the first tarsal segment, this not shorter than the first mid- 

 tarsal segment ; comb of the latter less distinct than in 

 Angonyx. 



" <$. Tenth segment much shorter than in Angonyx ; tergite 

 slender, slightly curved, not compressed ; sternite broader 

 than tergite, much shorter, truncate -sinuate. Clasper short, 

 rounded sole-shaped, dorsal margin rounded dilated, concave 

 at base ; seven to nine large truncate friction-scales, arranged 

 in three rows, situated in a depression. Penis-sheath with one 



