1856.] Entomological Papers. 531 



cis. Thorax subquadratus antice posticeque angustatus, basi punc- 

 tis 4 magnis profunde impressus. Elytra ovata, medium versus 

 leviter inflata, apice obtuse acuminata, abdomine longiora et 

 ampliora, punctulis lineis dispositis absoletissime impressa. Ala? 

 corpore plus duplo longiores. Tibiae fortiores spinulosse. Tarsi 

 breviores. Prosteruum carinatum. 



In praecedentium societate frequenter lectum. 



This is perhaps the prettiest of the 5 species of the family just 

 described and at first sight recognised by the shape of its body 

 and the polished back. The head is very large. The thorax is 

 narrowed in front and behind, at the latter place impressed with 4 

 deep, not to be overlooked, punctures. The wing-covers are oval, a 

 little inflated about the middle, rounded at the apex, and longer 

 and wider than the abdomen. The prosternum is carinated. 



It affords me much gratification to be enabled to publish repre- 

 sentatives of 3 genera of this highly interesting and probably very 

 extensive and widely distributed family of pigmies, the Asiatic 

 representatives of which have hitherto been entirely unknown. I 

 have no doubt that even this Island is the abode of a great many 

 more species. 



21. Stenus harhatus. JST. 



S. elongatus, aeneo-niger, nitidus, punctatus, sparsim pubescens, 

 pedibus palpisque albidis, ore coxisque testaceis, antennis bruu- 

 nescentibus. Long. corp. 1\ lin. 



Caput thorace tertia parte latius, fronte costis 3 abbreviatis, 

 antice albido-pubescens. Antennae art. 3° sequentium 2 fere 

 longitudine, 3 ultimis elongatis, ellipticis. Palpi max. elongati 

 apice densius pubescentes. Thorax cylindricus medio leviter in* 

 crassatus, basi subquadratus. Elytra thorace paulo longiora, sed 

 fere duplo latiora, convexa, ovata. Abdomen immarginatum. Pedes 

 elongati tenues, tibiis apice tarsisque fortiter setosis, his art. 4° 

 profunde bilobo. 



In lacus Colomb. ripis specimina nonnulla legi. 



This, as well as the following species, belongs to Erichson's di- 

 vision II. B. of the g., both having the abdomen immargiuate 

 and the 4th tarsal joint bilobed. Everything about this species is 



3 z 2 



