( 160 ) 



spines also on the steniites, the less slender antennae, the segments of which are 

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

 Antenna of c? rather thick in basal fourth. 



<J. Tenth abdominal tergite broad and short, triangularly narrowed at end, 

 rainntel y sinuate, up]ierside scaled mesially ; sternite with two sht)rt, straight 

 processes. Penis-sheath armed with an apical tooth curving sinistro-laterad. No 

 ])atch 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 jilate feebly chitinised, except at the large vaginal cavity ; the edge 

 of this cavity armed with two processes. 



Larva not described ; said to be nearly the same as that of Spliinx ocellata. 

 Hah. N. India to Amurland and Japan. 



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

 however, not nearl}' related. 



Standiuger, when describing the genus Dolbina, said that the tongue was not 

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

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

 spur to the hindtibia : if the terminal pair becomes reduced both spurs disapjjcar. 

 Dolbina has, as a matter of fact, two paira of spnrs to the hindtibia ; but the spurs 

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

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

 which keep the two maxillae together, is not so obvious in Dolbina and other 

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

 nevertheless present in Dolbina (as it is in all genera). Bartel, in Eulil, Grossschm. 

 li. p. 26, repeats those erroneous statements. 



Key to the species : 



a. Abdomen beneath with large black mesial 



patches ........ b. 



Abdomen beneath witliout large black mesial 



patches . . . . . . . 130. X*. exacta. 



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



„ „ long white hair-scales . . 129. D. tancrei. 



128. Dolbina inexacta. 



*.lAa<Tos(7« iiir.rarl,i Walker, Lid Lep. Ins. B. M. viii. p. 2(.l8. n. 14 (1856) (N. India ;— Mus. Brit.). 



Sphinx inatidd, Boisduval, Sjiec. Gen. Up. Hit. i. p. 117. n. 50 (1875). 



Pscudosphinx inexacta, Butler, Trans. Zool. Snc. Loud. ix. p. 611. n. 6 (1877) (N. India ; Masuri) ; 

 id., lUiistr. Tyji. Specim. Lep. Het. B. .1/. v. p. 16. t. 81. f. 8 (1881) ; Hamps., in Blanf., Faiimi 

 Brit. IikI., Miiths i. p. 104. D. 164 (18^12) (Mussoorie ; Kbasis ; Bombay). 



Hjitoiciis inexiirta, Kirby, Cut. Lep. Het. i. p. 6;)4. n. 7 (1892). 



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

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



c? ? Pilifer with a Jha bn',sfles, no scales. Distal margin of forewing almost 

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

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

 mesial jiatches 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 raeso- and metasternum and at the edges of the- abdominal sternites ; 

 the greyish white tips of the tarsal segments and the tibiae also consi)icnons. 



<J. Tenth abdominal tergite flat, eurved, short, mesially membranaceous to near 



