XXXI.- -The Subfamily Steninae, as repre- 

 sented in N. Sarawak. By L. Benick. 



(With one Plate.) 



The representatives of the subfamily Steninse of the 

 Staphyhnidae seem to be great rarities on the Simda-Islands, 

 only 15 species being known from there up to now. One 

 belongs, to the subgenus Stenus, 9 to the subgenus 

 Hijpustcnus and 5 to the subgenus Parastenus. 



From Borneo only two species, St. bispinus Motsch and 

 St. sulcipennis Bck., were hitherto recorded. 



It was tlierefore much to l)e appreciated that Dr. E. 

 Mjciherg (luring his ex})loration in the northern parts of 

 Sarawak also kept an eye on these rare animals and among 

 his material two species were new. I take the opportunity 

 to describe here also some species found by Dr. E. Mjoberg, 

 in other parts of Borneo and which either were new or up to 

 now not recorded from the island. Also two Sumatra species 

 are recorded. Types deposited in Mr. Benick' s collection of 

 Steninae in Naturhistorisches Museum, Liibeck. 



1. Stents nigrovjrens Fvl. 



I 9-4.6 mm. long. Agrees well with the original descrip- 

 tion — Brastagi, Sumatra 1,600 m.leg. Dr. E. Mjoberg, 

 Distribution : Burma, Sumatra. 



2. Stenus mjobergi n. sp. (PI. 14, fig. 3 — 4.) 



Belongs to the pictus group and comes nearest to St. flavi 

 dulus Sh. 



