22,4 Rohwer: New Hymenoptera from Malayan Region 349 



Described from two (one type) females under accession No. 

 18575, Bureau of Science. Material collected and reared by 

 C. S. Banks and said to be a parasite of Lucilia species. 



Type.— Catalogue No. 24959, United States National Museum. 

 Antenna of type and flagellum of paratype on slides. 



Although the available information would suggest that this 

 is related to D. banksi, the characters given in the above key 

 should easily distinguish the two. 



PERILAMPIDJE 



Genus NESOPERILAMPUS novum 



This new genus has the general habitus of Perilampus, to 



which it runs in the available keys, but can be distinguished 



from the old genus by the following key: 



Scrobal cavity narrow, well separated from lower margins of eyes; scape 

 compressed; pronotum long; marginal vein much shorter than post- 

 marginal; notauli poorly defined Nesoperilampus g. nov. 



Scrobal cavity broader and not sharply defined below; scape cylindrical; 

 pronotum short; marginal vein longer than postmarginal ; notauli 



usually well defined Perilampus Latreille. 



Antennae inserted well above the lower margins of eyes, 13- 

 jointed, scape compressed, one ring joint, club poorly defined 

 and indistinctly 3-jointed ; scrobal cavity narrow, pointed above, 

 and sharply defined to lower margin ; pronotum about half as 

 long as scutum and sculptured like it; notauli poorly defined; 

 scutellum distinctly longer than scutum, pointed posteriorly, and 

 projecting beyond propodeum ; marginal vein much shorter than 

 postmarginal. Black. 



Genotype, Nesoperilampus typicus sp. nov. 

 Nesoperilampus typicus sp. nov. 



Male.— Length, 3.5 millimeters; length of anterior wing, 3 

 millimeters. Anterior margin of clypeus broadly, shallowly 

 emarginate medianly; surface of clypeus rather coarsely coria- 

 ceous and clothed with long hair; at least sides of scrobal cavity 

 finely aciculate; front (except scrobal cavity) and sides of head 

 with strong dorsoventral rugae; vertex with strong transverse 

 rugae; first funicle joint longer than second which is slightly 

 longer than third ; club indistinctly 3-jointed ; pronotum, scutum, 

 and scutellum with shallow umbilicate punctures ; scutellum pro- 

 duced posteriorly into a rather acute triangle, the free edge of 

 which has a broad, deep, shining furrow with the ventral lip 



