185(5.] 93 



many specimens of E. thrax, and I have before nic a specimen from 

 Pulo Laut which agrees in all essential particulars with E. acroleiica, 

 save that the pale spot in cell 3 of the fore-wing above is sublunate 

 instead of rhomboidal ; there is nothing in the male genitalia of E. 

 acroleuca by which it can be distinguished from typical thrax. 



E. gramlis, Leech, may at once be distinguished from any form 

 of E. thrax by the pure white colour of the pale spots on the fore- 

 wing ; it is further distinguished from the form acroleuca (whicb ita 

 male resembles in size and in the pale shade on the apex of the fore- 

 wing above) by the irregularly roundish non-rhomboidal shape of the 

 pale spot in cell 3 of the fore-wing above. The diagnostic features of 

 E. grandls are not made sufficiently clear either in the description or 

 the figure ; the former makes no mention of the colour of the pale 

 spots on the fore-wing above, and in the latter the pure white colour 

 of these spots is not sufficiently accentuated. 



Under these circumstances the geographical distribution given by 

 Mr. de Niceville for Erionota thrax, as represented by the form 

 acroleuca, will require modification ; and in this connection it may be 

 well to mention that amongst some HesperiidcB sent to Mr. de Nice- 

 ville for names I find a specimen of a Gangara from Perak, distinguished 

 from G. thrysis by its smaller size and the presence of a small sharply 

 defined cream-white spot near the base of cell 7 in the hind-wings 

 beneath, labelled " Erionota acroleuca, AV.-M. and de N.," in Mr. de 

 Kiceville's handwriting. 



Colesboriie, Cheltenham : 

 February, 1895. 



THE GENERA CRYPTORYPNUS AND UYPNOIDUS. 

 BY G. C. CHAMPION, F.Z.S. 



In the Ent. Nachrichten, xix, p. 308 (1893), Dr. E. Bergroth 

 remarks that the genus Cryptohgpnus, Latr., is still confounded 

 with Hypnoidus, Schiodte. He gives the characters for them as 

 follows : — 



Cryptohgpnus : Epimcra mesothoracica coxas attingentia. Aceta- 

 bula coxarum mediarum itaque e mesosterna, epimeris mesothoracicis 

 ac metasterno formata Elytra prothoraci innata. 



Hyp/ioidus : Epimera mesothoracica coxas non attingentia. Ace- 

 tabula coxarum mediarum tantum e mesosterno et metasterno formata. 

 Elytra prothoraci non innata, sed superposita. 



