40 INSECUTOR INSCITI^E MENSTRUUS 



termination of the lateral carina, another farther laterad but 

 smaller, the terminus of another strong carina laterad of the 

 small round spiracle which is central ; still another carina 

 along lateral edge ; the spiracle thus isolated in an elliptical 

 space enclosed by two carinje. Petiole a bit longer than wide, 

 scabrous, 2 largest, somewhat over half the surface, rest short. 

 Stigmal short, oblique, postmarginal none. Tibial spurs not 

 enlarged. Pronotum transverse-quadrate. Maxillary palpus 

 with a long cylindrical joint only, this ending in a long seta. 



Mesentedon hallami, new species. 



Purple, wings clear, veins pale, legs, antennae red-brown, 

 club black ; pedicel vase-shaped, club 1 equal f unicle 3, stout, 

 wider than long, other funicles smaller. Polished but pro- 

 notum, cephalic scutum and occiput more or less scaly ; scutel- 

 lum laterad of groove, showing coarse longitudinal scaliness, 

 parapsidal furrows finely long striate at apex. 



Two females, jungle, Mulgrave River, November. 



Diplesiostigma, new genus. 



Form of Bpitetrastichus, stout ; resembling Ormyrus but 

 abdomen not sculptured coarsely, less convexed. Head a bit 

 wider than long, the antennae a bit below middle of face, 11- 

 jointed with two extremely short ring-joints, club-solid. Man- 

 dibles bidentate; palpi, maxillary 2 long, labial 1 long, joint. 

 Parapsidal furrows distinct, scutellum simple, rimmed at apex, 

 propodeum moderately short, with a pair of well-separated 

 median carinse and a very long, large, oblique spiracle. Abdo- 

 men stout, ovipositor not extruded. Venation as in Entedonini, 

 postmarginal twice the short stigmal. Mesepimeron not in- 

 cised. Monodontomerinse. Type, the following. 



Diplesiostigma particolor, new species. 



1.87 mm. Honey, wings clear, legs white, flagellum dusky ; 

 occiput widely cross middle, ocellar area, scrobes narrowly 

 and a bow-shaped line down through insertions of antennae, 

 black. Dorsal body washed with aeneous, scutellum aeneous, 

 so base abdomen narrowly above. Scutum, parapsides with 



