H2EM0RRHAGIA. 239 



Key to the Genera. 



Imagines. 



Wings purple or green with metallic gloss, 



or drab-grey ; closely resembling a [p. 251. 



carpenter-bee in appearance Sataspes Moore, 



Wings hyaline ; body green with reddish [p. 244. 



band ." Cephonodes Hiibn., 



Wings with hyaline patches bordered 



broadly with dark-coloured scales ; or 



unicolorous, with more or less distinct [& Rob., p. 239. 



vitreous spaces Hemorrhagica Grote 



Larvae. 



1. Head triangular; no dorso-lateral line; [p. 2.52. 



six or seven oblique stripes Sataspes Moore, 



2. Head round ; dorso-lateral lines ; no 



oblique stripes 3. 



3. Large tubercles on front margin of seg- 



ment 2 ; small tubercles on secondary [& Rob., p. 241. 



rings and horn H^emorrhagia Grote 



Tuberculate saddle-shaped mark on seg- [p. 246. 



ment 2 ; rest of body smooth Cephonodes Hiibn., 



Pupss. 



1. Ante-spiracular ridges and frontal ridges or 



tubercles present 2. 



Ante-spiracular ridges and frontal ridges or 

 tubercles absent ; cremaster a conical 



shaft, minutely bifid and longitudinally [p. 246. 



ridged dorsally Cephonodes Hiibn., 



2. Cremaster triangular, bifid and with J & Rob., p. 241. 



lateral setiferous tubercles Hjemorrhagia Grote 



Cremaster triangular, with a simple point [p. 252. 



and ventral extensor ridges Sataspes Moore, 



Genus HJEMORRHAGIA Grote & Robinson. (Fig. 63). 



Grote & Rob., 1865, pp. 149, 173 ; Roths. & Jord., 1903, p. 438 ; 

 id., 1907, p. 85, t. 5, fig. 8 ; Jordan, 1911, p. 247. 



Genotype : thy she (Fabr.). 



Imago. — (£$. Wings more or less hyaline ; moths resemble 

 humble-bees in general appearance. Very variable as to size, 

 colour and indentation of the marginal bands, and subject 

 to strongly marked seasonal dimorphism. " Genal process 

 large, triangular. Eye strongly lashed. Antenna strongly 

 clubbed in both sexes, hook thin, abrupt ; end- segment 

 long, more or less cylindrical, with some bristles at end ; 

 previous segment also cylindrical, short, or obliquely produced 

 ventrad with the sense-cone prominent (rubra). Spines of 

 abdomen flat, very strong, proximal ones shorter than long 

 (except on proximal sternites), rounded ; sternite of seventh 

 segment of $ with spines at end ; fan-tail large, expansible. 



