136 INSUCUTOR INSClTlyE MENSTRUUS 



2. Metanotum medially spined; labrum rostriform Dioxys Lep. 



Metanotum not spined; labrum not rostriform. .. .Neopasites Ashm. 



3. With one cubital cell and one recurrent vein Phileremulus Ckll 



With two cubital cells and two recurrent veins 4. 



4. Marginal cell hardly longer than the very narrow stigma, the 



metacarpus almost wanting Neolarra Ashm. 



Marginal cell long, stigma broad, metacarpus long 5. 



5. First recurrent vein subinterstitial or received by the first cubital 



cell 6. 



First recurrent vein received by the second cubital cell far from 

 base 7. 



6. Labrum rostriform ; claws toothed near apex or simple, 



Holcopasites Ashm. 

 Labrum short, not rostriform ; claws of female cleft, flattened, 



TownscndieUa new genus. 



7. First cubital cell much shorter than the second, labrum elongate, 



Oreopasitcs Ckll. 

 Cubital cells nearly equal or the first longer Phileremus Latr. 



Neopasites cressoni, new species. 



Male. — Length, 5 mm. Black, head coarsely, closely punc- 

 tured, more coarsely so on clypeus, clothed with white plumose 

 hairs, those on vertex brown ; side margins of clypeus reflexed 

 and produced above surface to a sharp edge, laterad of this a 

 smooth f oveate space ; mandibles red at apex ; labrum rugose, 

 medially near base with a short spicule ; antennse short, sub- 

 clavate, 12-jointed, scape very short ; labial palpi 4-jointed, joint 

 1 about as long as 2-4 combined, 2 slightly longer than 3-\-4 ; 

 4 twice as long as 3 ; maxillary palpi 3- jointed, first a mere 

 tubercle, second and third subequal in length ; third segment 

 with a long large bristle at apex ; vertex flattened ; mesothorax 

 closely, rather coarsely, punctured and with white plumose 

 hair, that on disc of mesoscutum and on extreme anterior 

 margin medially and on lobes of scutellum brownish ; scutellum 

 slightly bilobed ; metanotum, sides of propodeum and pleurae 

 with pubescence dense ; propodeum with a triangular rugose 

 enclosed area extending into posterior face ; the dorsal part of 

 this enclosure rugose, with a very few of the rugae longitudinal, 

 the part on posterior face with much finer sculpture ; below the 

 enclosure the surface smooth, polished, sides of propodeum 

 punctate ; wings dusky, with a lighter area beyond second 



