ACHERONTIINI. 51 



Cremaster an oval or rounded flattened 



plate ; colour reddish- brown without [p. 84. 



bloom Apocalypsis Butl., 



Cremaster triangular ; colour chestnut [Roths., p. 90. 



without bloom ; length of pupa 42 mm. Pseudodolbina 

 Tongue reaching tip of wing-case, its base 



transversely file-ridged ; sculpturing on [p. 51. 



segment 4 like raised pear-shaped weals . Achepontia Lasp., 



Tribe ACHERONTIINI. 



Acherontiicse, Roths. & Jord., 1903, p. 4 ; id., 1907, p. 5, t, 1, 

 fig. 7 ; Jordan, 1911, p. 231. 



Imago. — " (J$. Palpus on the inner side without basal 

 patch of short sensory hairs ; second segment impressed, 

 this cavity covered by a roof of long scales. Labrum raised 

 to form a rounded carina, which is highest mesially. Tongue 

 strong, either longer than the body or shorter than the 

 thorax — in the latter case (Acherontia) very stout. Genal 

 process very small. Second segment of palpus considerably 

 shorter than the first, third small ; first externally with deep 

 apical cavity in scaling in Megacorma. Antennal segments 

 impressed laterally in <J ; subprismatic with the sides rather 

 rounded in $, distal segments compressed, in trans-section 

 elongate -elliptic, in side-view subserrate dorsally as well 

 as ventrally ; end-segment long and thin, with long scales 

 and bristles. Abdominal tergites and sternites with several 

 irregular rows of spines at the apical margins. Spurs of 

 tibiae unequal, hind tibia with two pairs ; pulvillus present 

 or absent ; paronychium with two lobes or one on each 

 side. 



"(J. Scent-organ of anterior coxa present, but not always 

 •conspicuous. Tenth abdominal tergite long, more or less 

 pointed. Claspers rough, with short spiniform setae near 

 the apex of the harpe ; the patch of friction-scales on the 

 outer side, if present, large, consisting of multidentate scales ; 

 apical edge of clasper with bristles, which are sometimes 

 short and stout, spiniform. Harpe short, divided into two 

 or three processes, the upper process armed at the edge 

 with long teeth in Megacorma. 



"2. In front of the vaginal orifice there is a flap, rounded, 

 truncate, or divided " (Roths. & Jord., 1903, p. 4). 



Larva. — Head round, body tapering slightly frontad : 

 horn down- curved in the last instar, sometimes recurved 

 upwards (Acherontia). Surface without tubercles in the 

 last instar except in Acherontia. Pale-coloured oblique 

 stripes on segments 5 to 11. Two or more colour-forms. 



Pupa. — With a free tongue-sheath (Herse), or base of tongue 

 with transverse ridges ; coxal piece, sculpturing on segment 4 



e2 



