478 MR. E. E. TURNER ON [May 12, 



with a deep median sulcus ; a very obscure longitudinal carina 

 from the base of the segment not reaching the middle. Abdomen 

 subopaque ; the four basal segments with broad apical bands 

 of silvery pubescence ; the pygidial area narrowly truncate at the 

 apex, clothed with silvery pubescence ; the second ventral segment 

 smooth and convex, with a longitvidinal carina on the basal third. 

 The third cubital cell is half as long again as the second on the 

 radial nervure and as long as the second on the cubital nervure ; 

 the two recurrent nervures are received by the second cubital 

 cell before the middle, the first more than twice as far from the 

 base of the cell as from the second. 



Black ; the scape beneath f usco-f errviginous ; the tegulpe and 

 the apical margin of the fifth abdominal segment testaceous, the 

 tarsi beneath, the apical joint of the tarsi above, and the tarsal 

 ungues ferruginous. Wings hyaline, the outer margin bordered 

 with pale fuscous, iridescent ; nervures fusco-ferruginoiis. 



Length 10-11 mm. 



Hcth. Mackay and Cairns, Queensland {Turner) ; December to 

 May. 



NOTOGONIA SERENA, Sp. n. 



5 . Mandibles very feebly notched on the outer margin ; the 

 ■clypeus very broadly rounded at the apex, clothed densely with 

 rather coarse silver-grey pubescence, almost flat. Scape clothed 

 with short, shining pubescence, the apex beneath smooth and 

 shining ; the first joint of the flagellum half as long as the second, 

 the fourth a little longer than the third and about equal in length 

 to the second. Eyes separated on the vertex by a distance equal 

 to the length of the third joint of the flagellum. Head opaque ; 

 the pubescence on the front silver-grey and rather coarse, that on 

 the broad depressed space round the anterior ocellus pale golden- 

 brown. Pronotum very sharply sloped, almost vertical, much 

 higher in the middle than at the sides ; mesonotum very minutely 

 punctured-rugulose ; clothed with pubescence, which is rather 

 coarse and silver-grey flushed with pale golden on the sides, 

 darker and shorter on the middle ; longitudinally depressed from 

 the middle to the anterior margin. Median segment longer than 

 broad, with a delicate longitudinal carina from the base to the 

 middle, rather obscurely transversely striated, the stride most 

 distinct at the base and the sides, more opaque than the thorax, 

 vertically truncated posteriorly, the face of the truncation in- 

 distinctly transversely striated, with a low carina from the base 

 not quite reaching the apex, the apical margin of the segment at 

 the base of the truncation slightly raised. Abdomen opaque, 

 pruinose, the apical margins of the four basal segments with broad 

 bands of silvery pubescence, which is coarser on the sides than in 

 the middle ; the pygidial area more than twice as long as the 

 breadth at the base, about half as wide at the broadly rounded 

 apex as at the base, clothed with rather coarse golden pubescence. 

 The two recurrent nervures are received very close together before 

 the middle of the second cubital cell, the first is slightly curved 



