516 Records of the Indian Museum. [Voi,. XXIV. 



in forewing, 2 to 3 in the hind ; 7 rows of cells at outlet of the 

 discoidal field. 



Forewing 37 mm. ; hind wing 31 mm. ; abdomen 23 mm. ; 

 antennae 19 mm. 



I place this species with some doubt in genus Suhpalacsa, 

 which so far has not been shown to contribute any species within 

 Indian limits. 



It is at least very closely allied to the genus. It bears a 

 superficial resemblance to Idricerus decrepiius from which, however, 

 it is of course easily separated by its bipartite eyes. 



Tribe Hybrisini Ris. 



Genus Acheron I^efebr. 



Acheron trux Walk. 



Ascalaphus trux, Walk., Cat. B.M., p. 432, no. 45 (1853). 



Ascalaphus loquax, WalU., I.e., no. 48, p. 434, (1853). 



Ascalaphus antiquus, Walk., I.e., no. 49, p. 434 (1853). 



Ascalaphus longus, Walk., I.e., no. 50, p. 435 (1853). 



Helicomitus ctenocerus, Gerstaeck., Mitt, natur. Ver. Neu-Vorpom . 



una 1 Rugen XXV, p. 101 (1893) ; Weele, Notes Leyden Mus. XXVI, 



pp. 200, 228 (1900). 

 Acheron trux, Ris, Cat. Coll. Selys, Ascalaphidae, p. 228 (1908). 



I & and 2 9 9 , Tura, Garo Hills, Assam, 1200-1500 ft., vi-viii, 

 1917 (coll. S. Kemp) ; 1 c? , Pashok, alt. 3500 ft., Darjiling Dist.. 

 E. Himalayas, 26^*1914 (coll. F. H. Gravely). 



Type in Brit. Mus. from Bengal, but without precise locality. 

 This species is very constant and has a fairly wide distribution. 

 Localities from which this insect has been recorded are Burma, 

 Sylhet, Darjiling, Bhutan, Bengal, Assam, Sikkim, Malacca, China 

 and Formosa. 



Genus Glyptobasis MacLach. 



Glyptobasis dentifera Westwood." 



Ascalaphus dentifer, West., Cab. Ori. Ent.,\A. xxxiv (1848). 

 Ogcogader dentifer, West., I.e. 



Ascalaphus dentifer, Walk., Cat. B.M., p. 421, no. 26 (1853). 

 Glyptobasis dentifera, MacLach., I.e., p. 268 (1871) ; Ris. Cat. Coll. 

 Selys, Ascalaphidae, p. 241, fig. 197, 198, 199 (1908). 



2& cr and 1 9 , Talewadi, near Castle Rock, N. Kanara Dist., 

 Bombay Pres., 3-10x1916 (coll. 5. Kunp); 3 <? & , Mormugao, 

 Portuguese Ind., ix-iqi6 (coll. S. Kemp) ; 1 9 , Balugaon, Puri 

 Dist., Orissa, 2i-3i"viii'i9i3 (coll. N. Annandale) ; 1 pair, Param- 

 bikalam, Cochin State, 1700-3200 ft., i6-24'ixi9i4 (coll. F. H. 

 Gravely); 2<f & and 29 $, Trichur, Cochin State, 0-300 ft., 

 I-4X-I9I4 ; & , Kavalai, Cochin State, 300-3000 ft., 24-27"ix-i9i4 

 (coll. F. H. Gravely). 



This species is the type of the genus. Type in Brit. Mus. 

 (East India). MacLachlan's specimen is from Bombay and speci- 

 mens have also been obtained from Goregaon, which is near 

 Bombay. Bangalore is another locality mentioned for the species. 



