( 162 ) 



(?. Tenth tergite broad, flat, curved downward, narrowed from middle to end, 

 whicli is incised ; processes of sternite short and slender (PI. XXVIII. f. 27). 

 Ventral jirocess of harpe (PI. XXXIX. f. Ki) suddenly narrowed at end to a 

 point, dorsal process divided into a single distal and double proximal lobe. Tooth 

 of i)enis-sheath short (PI. XXIX. £ 34), inner surface of sheath densely covered 

 ventrally with sharp spines, which form a patch that extends far proximad, the 

 bases of the spines shining through the sheath as small dots ; this araiature 

 reminds one strongly of that found in Amorpha 2Jopiili. 



?. The two processes of the vaginal plate stand at the side of the vaginal 

 cavity, and are very slender (PI. XXII. f 2). 



Larva said by Graeser, I.e., to be very similar to, and the pupa not distinguish- 

 able from, that oi Sphinx ocellata. — Food-plants: Sijrinya and Fra.cinus. 



Two broods. 



JJab. Amurland and Japan. 



In the Tring Museum 8 c?c?, T ? ? from : Amurland ; Japan. 



XLII. KENTOCHRYSALIS.-Tyjuis : streckm. 



Kenlijclin/siilis Staudinger, in Rom., Mem. Leji. iii. p. 1.57 (1887) (type : streiheri). 

 Aiifenj.,-', heech (iiou Walker, 1856), Proc. Znnl. Soc: Limtl. p. 68',l (1H88), 



(? ? . Head small, scaling prolonged to an interautennal tuft. Tongue very 

 short and weak, the two halves separated distally, sometimes also proximally, tlie 

 ciliae at the inner edge long and rather widely apart. Pilifer reduced to a tubercle, 

 clothed with scales and bristles ; genal process short ; tubercle of labrum low, 

 transverse. Palpus small, smaller in ? than in cJ , joint between segments 1 and 2 

 naked, inner surface of segment 1 scaled, except at base. Antenna: end-segment 

 two or three times as long as high basally, triangnlar ; <?: strongly compressed, 

 ciliae long; ?: fasciculated ciliae shorter than in c?. Tibiae not spinose ; spurs 

 short, hindtibia witli two pairs, but proximal pair often concealed under the 

 scaling ; iirst tarsal segment almost exactly as long as the four other segments 

 together, no ]irolonged sjiines ; no mesotarsal comb : hindtarsus not longer than the 

 cell of the hindwing ; pulvillus and paronychium present, but the paronychial lobes 

 very slender. 



S. Harpe with a long ventro-distal process. Tenth tergite scaled mesially ; 

 sternite with a broad mesial lobe. Penis-sheath produced into a long hook, which 

 is curved proximad, 



? . Vaginal cavity covered by a broad lobe. 



Larva granulose, head triangular. 



Pupa without free tongue-sheath, armed with sume high, sharp tubercles on 

 the basal steruites of the abdomen, which serve as an organ of locomotion* 



JJdi. Amurland ; Mongolia ; Japan. 



Three species. 



It was not without liesitation that we decided to keep the seven species iii' 

 Sj/hit)yidn.i, Kcntorhri/.'idli.f and Dothina separate under these three generic terms. 

 Tliough SjihiiKjitlii.s and I hilljina represent divergent branches from the same stock 

 which are easily enough distinguisiialile, Kentoehrysalis stands interuietliate between 



* See Appendix. 



