400 SPHINGIDJE. 



f [p. 428. 



4. Cremaster without spines or hooks exceptj Theretra Hiibn., 



at tip, or without any at all .... * | [p. 414. 



I Hippotion Hiibn., 

 f [Jord., p. 466. 



Cremaster with spines or hooks in addition J Rhagastis Roths. & 



to those at tip | [(Fabr.), p. 417. 



[_ Hippotion velox 



5. A belt of spines along front edge of seg- 



ments 9 to 11 Pergesa Walk., p. 410. 



No such belts of spines Celerio Oken, p. 401. 



Genus CELERIO Oken. (Fig. 101). 



Oken, 1815, p. 761 ; Roths. & Jord., 1903, p. 713 ; id., 1907, p. 127 ; 

 Jordan, 1911, p. 254. 



Genotype : gallii (Rott.). 



Imago. — Medium-sized moths, brown with whitish markings, 

 hind wing red. " ^2. First segment of palpus on inner surface 

 without regular dense scaling at apex, second segment without 



Fig. 101. — Celerio Oken. Genitalia. 

 A, C. euphorbias euphorbias Linn., harpe ; B, penis-sheath. 



apical tuft of long scales on inner side. Eye lashed. Antenna 

 incrassate distally, club-shaped in $. Abdominal spines 

 rather strong, especially on tergites, in three sizes, with 

 some intermediate ones, generally triseriate, never uniseriate, 

 much fewer in number than in Pergesa. External spines of 

 fore tarsus more or less prolonged, always longer than the 

 respective spines on the inner side of the tarsus ; comb of 

 mid- and hind tarsus vestigial, the spines not being much 

 prolonged ; first segment of hind tarsus shorter than the 

 tibia, about twice the length of the long tibial spur, this more 

 than twice the length of the short spur ; pul villus present 

 or vestigial. Distal margin of wings entire ; SC 2 and R 1 

 of hind wing separate or from a point, occasionally shortly 

 stalked ; R 2 central, or a little before centre ; D 3 longer than 

 D 4 . 



" $. Sexual armature nearly the same in all species. Tenth 

 tergite simple, narrowing apically, convex above, feebly 

 curved at end, almost straight in side-view, tip rounded or 

 truncate, sometimes feebly emarginate ; sternite broader than 

 tergite, boat-shaped, being prismatically compressed, apex 



