348 Dr. David Sharp on some 



Cybister sugillatus. 



Cyhister sugillatus, Er., Nov. Act. Ac. Caes. Leop., 

 xvi., p. 227. 



Dikoya and Bogawantalawa. Seven specimens — all 

 similar — of a small narrow variety of this widely distri- 

 buted species. 



Cyhister wehnckianus. 



Cybister ivehnckianus, Sharp, Dyt., No. 1152, p. 737. 

 Dytiscus extenuans, Walker, Ann. Nat. Hist. (3), ii., 

 p. 204. 



This species has been previously known only by one 

 female example, the locality of which was given as 

 "East India?". Mr. Lewis has now procured three 

 examples representing both sexes, and I think it probable 

 the species may prove peculiar to Ceylon. The male 

 has very small anterior tarsi ; sexual sculpture in 

 the female is absent, but the peculiar impressions on the 

 metasternal laciniae are quite as strongly marked as in 

 the other sex. One of the three specimens is from 

 Kandy ; the other two are not labelled. 



HYDEOPHILID^. 

 Sternolophus rufipes. 

 Hydrophilus rufipes, Fab., Syst. El., i., p. 251. 

 Peradenyia, 20th February, 1882. Four specimens. 



Hydrobius minimus, sp. nov. 



Ovalis, convexus, nitidus, fuscus ; antennis basi palpisque flavis 

 capite thoraceque nigricantibus ilio utrinque flavo-maculato, hoc 

 ad latera late testaceo ; elytris parce punctatis, ad apicem colore 

 dilutiore. Long, vix 2 mm. 



Palpi short and stout, terminal joint longer than the penulti- 

 mate, fuscescent at the apex. Head almost impunctate; blackish, 

 with a yellow mark over the insertion of each antenna. Thorax 

 very short, polished, impunctate. Elytra with a deep sutural stria 

 reaching nearly to the scutellum, finely and sparingly punctate. 

 Legs slender, rufescent ; tarsi very slender. 



This obscure little insect will not enter into any of 

 the divisions that have recently been made for the 



