( 160 ) 



spines also un the steriiitcs, the less slender antennae, the segments of wliicli are 

 not rounded-dilated laterad and have longer ciliae ventrally in the proximal series. — 

 Antenna of S rather thick in basal fourth. 



c?. Tenth abdominal tergite bro.id and short, triangularly narrowed at end, 

 miinitely sinuate, upperside scaled mesially ; steruite with two sliort, straight 

 processes. Penis-sheath armed with an a])ical tooth curving sinistro-laterad. No 

 patch of modified scales on clasper ; the latter small, very strong ventro-basally ; 

 harpe large, with broad ventro-distal process and three rounded dorsal lobes. 



?. Vaginal plate feebly chitinised, excej)t at the large vaginal cavity ; tiie edge 

 of this cavity armed with two processes. 



Larva not described ; said to be nearly the same as that of Sjihiux orellata. 



Jldb. N. India to Amurland and ./apan. 



The three species resemble in colour the Nearctic Dolba, with which they are, 

 however, not nearly related. 



8tandiuger, when describing the genus Ihlbina, said that the tongue was not 

 longitudinally grooved and that the hiudtibia had only one spur. In this he was 

 wrong. There is no Lepidopterous insect to our knowledge which has only one 

 spur to the hiudtibia : if the terminal pair becomes reduced both spurs disappear. 

 Dolhina has, as a matter of fact, tioo pairs of spurs to the hiudtibia ; but the sj)nrs 

 are short, and therefore easily overlooked by a casual observer. The longitudinal 

 groove of the tongue, i.e. the groove at each side of the mesial fringe of ciliae 

 which keep the two maxillae together, is not so obvious in Doll/ina and other 

 genera with reduced tongues as in the genera with long probosces, but is 

 nevertheless present in Dolbina (as it is in all genera). Bartel, in Riilil, Grosssckm. 

 li. p. 26, repeats those erroneous statements. 



Key to the species : 



a. Abdomen beneath with large black mesial 



patches .....■■■ b. 

 Abdomen beneath without large black mesial 



patches 130. i>. exacta. 



b. rilifer with a few bristles only . . . 128. D. inexacta. 



„ „ long white hair-scales . . 129. I>. tancrei. 



128. Dolbina inexacta. 



*Maa-osila iiie.mHa "Walker, Lhl Lep. Ins. B. M. viii. p. 208. ii. U (1856) (N. India ;— Mus. Brit.). 



Sphinx inexacta, Boisduval, Spec. Gen. Lep. Het. i. p. 117. d. 59 (1875). 



Pseudusphinx inexacta, Butler, Tmn!^. Zool. So,: Loud. ix. p. 611. n. 6 (1877) (N. India ; Masuri) ; 

 id., y//»s//-. Tiip. Specim. Lep. Het. B. M. v. p. 16. t. 81. f. 8 (1881) ; Hamps., in Blanf., Fauna 

 Brit. Ind., Moths i. p. 104. n. 164 (1802) (Mussoorie ; Khasis ; Bombay). 



Hyloicus inexacta, Kirby, Cat. Lep. Het. i. p. 694. n. 7 (1892). 



*Meganoton khasianum Rothschild, Nov. ZooL. I. p. 90 (1894) (Khasia Hills ;— Mus. Tring) ; 

 Hamps., I.e. iv. p. 453 (1896) { = discistriga ex err. ! !). 



S ? Pilifer with a few bristles, no scales. Distal margin of forewing almost 

 straight in c? somewhat sinuate before hinder angle, discal interspace sometimes 

 pinkish grey between cell and posterior margin ; abdomen with very large black 

 mesial patches beneath ; legs and breast of the mummy-brown colour of the 

 underside of the wings, contrasting strongly with the almost white scaling in the 

 middle of meso- and raetasterunm and at the edges of the abdominal sternites ; 

 the greyish white tips of the tarsal segments and the tibiae also conspicuous. 



S. Tentii abdominal tergite flat, curved, short, mesially membranaceous to near 



