638 PARASITIC HYMENOPTKRA, ii., 



first, much longer laterally than in the centre, where it is about 

 one-fourth of the length of the first; its apex is not quite trans- 

 verse. Antennse placed over the mouth, 10-jointed, the joints 

 elongate. Hind femora closely toothed, the apical tooth larger 

 than the others. Apex of scutellum bluntly rounded. Meta- 

 notum flat, bearing three keels on either side, three being con- 

 nected by finer transverse striae; outer keel stouter than the 

 others and slightly projecting. Apex almost transverse above 

 and at the top, pressing against the broad base of the first 

 abdominal segment. Submarginal nervure nearly one-half the 

 length of the rest of the wing; submarginal not one-fourth of its 

 length, stigma short, hardly projecting beyond the latter; post- 

 marginal hardly differentiated. Malar space as long as the eyes. 

 Body and legs more densely pilose than usual. Middle legs much 

 narrowed on the basal half. 



A genus of Halticelliiue, easily known by the peculiar form of 

 the first abdominal segment. 



Iriciioiialticella pilosiolla, sp.n. 



Black; densely covered with white pubescence; the apical 

 third of the four anterior femora, the whole of the posterior, and 

 all the tibiae and tarsi red; wings hyaline, nervures black, tegulse 

 black, broadly red on the outer edge. Length, 5 mm. 



Mittagong, N.S.W.; caught on the wing(W. W. Froggatt). 



Antennse opaque, bare, third joint about one-quarter longer 

 than fourth, the last longer than the penultimate. Sides of f i-ont 

 and occiput coarsely, umbilically punctate, the lower part of front 

 with the sculpture hidden by the dense pubescence, the middle 

 coarsely transversely striated. Temples less strongly umbilically 

 punctate. Pro- and mesonotum, except laterally, and scutellum 

 coarsely umbilically punctate, lateral lobe of mesonotum with the 

 central apical half smooth, the rest with large, distinctly sepa- 

 rated punctures. Base of metanotum, under the projecting apex 

 of the scutellum, with a crenulated furrow; the two outer longi- 

 tudinal arese wider than the central, and having the longitudinal 

 and transverse keels stronger than the central. Upper half of 

 propleuraB umbilically punctate, clearly separated from the lower. 



