328 SPHINGID^. 



f. hespera (Fabr.). (Fig. 84, imago). 



Sphinx hespera, Fabricius, 1775, p. 546 (Ind. or.). 



Nephele didyma f. hespera, Roths. & Jord., 1903, p. 554 ; Seitz, 



1929, p. 554. 

 Sphinx chiron, Cramer, 1777, p. 62, p]. cxxxviL fig. E (Coro- 



mandel). 

 Perigonia obliterans, Walker, 1864, p. 28 (N. Hindustan). 



Imago. — <££. Fore wing without silvery spots, or only with 

 a minute dot. 



Fig. 84. — Nephele didyma f. hespera (Fabr.). 



Habits and early stages the same as in the case of N. d. f. 

 ■didyma. 



Genus GURELCA Kirby. (Fig. 85). 



Kirby, 1880, p. 330 (part.) ; Roths. & Jord., 1903, p. 587 ; id., 

 1907, p. 109 ; Jordan, 1911, p. 251. 



Genotype : hyas (Walk.). 



Imago. — <£$. Very small, grey marked with brown and 

 black ; outer margin of fore wing toothed, and costal margin 

 of hind wing broadly excised. " Genal process triangular, 

 obtuse, not reaching tip of pilifer. Palpus projecting, terminal 

 surface triangular, almost quadrangular ; scales laterally at 

 apex of first segment prolonged, forming a kind of fan ; basal 

 patch of sensory hairs of inner surface absent. Eye strongly 

 lashed ; head crested, the crest divided into two carinse which 

 converge behind. Antenna short, filiform in both sexes, 

 strongly compressed in <J, cylindrical in ° ; end-segment 

 short, conical. Spines of abdomen numerous, in several rows, 

 all elongate and weak ; £ with expansible obtusely triangular 

 anal tuft, $ with smaller truncate tuft. Merum of mid-coxa 



