Mr. R. E. Turner on Fossorial Hymenoptera. 131 



Austrostigmiis duhius, sp. n. 



$ . Nigra ; mandibulis, antennis, tegulis pedibusque bruneo- 



testaceis ; alls byalinis, veuis testaceis ; mesonofco rugoso. 

 Long. 4 mm. 



$ . Head longer than broad, with a carina from the 

 anterior ocellus to the base o£ the clypeus, the carlnse round 

 the eyes strongly developed, the front between the carinas 

 punctured-rugulose. Eyes divergent toward the clypeus j 

 posterior ocelli as near to the eyes as to eacii other. 

 Antenna^, inserted on each side of the clypeus, nearer to the 

 base than to the apex, farther from each other than from the' 

 eyes, as long as the head, the flagellum more than twice as 

 long as the scape. Pronotum transverse, pointed at tlie 

 angles; mesonotum rugulose ; scutellum smooth, opaque; 

 mesopleura3 opaque, with a few scattered punctures. En- 

 closed area of the median segment well defined, almost 

 triangular, tiie marginal carinas not quite meeting at the 

 apex, with two longitudinal carinae near the middle, the 

 space between the carinj» transversely striated ; the surface 

 of the posterior truncation indistinctly transversely striated, 

 with a fovea at the base. Abdomen smooth and shining, the 

 sixth segment without a pygidial area. Second cubital cell 

 very small, the .second abscissa of the radius less than half 

 as long as the first, second cubital cell less than half as long 

 on the radius as on the cubitus, the length on the cubitus 

 equal to about half the length of the first transverse cubital 

 nervure ; the recurrent nervure received at a distance before 

 the apex of the first cubital cell slightly exceeding the length 

 of the cubital margin of the second cubital cell. 



Hah. Kuranda, N. Queensland (Turnt^r) ; June. 



This is very near A. queenslandensis, Turn., but difi'ers in 

 the much coarser sculpture of the mesonotum, being inter- 

 mediate in tliis respect between queenslandensis and reticulatus. 

 The second cubital cell in queenslandensis is triangular. 



Austrostigmiis approxtmatus, sp. n. 



2 . Nigra ; antennis, tegulis pedibusque bruneo-testaceis ; mandi- 

 bulis basi flavis, apice ferrugineis ; alis pallide flavo-hyalinis, 

 venis pallide testaceis. 



Long. 4 mm. 



? . Head longer than the greatest breadth, finely shag- 

 reened, with a carina reaching from the anterior ocellus to 

 the base of the clypeus, and continued to the apex of the 

 clypeus in a gradually broadening form. Mandibles acutely 



9* 



