330 MEMOIRS OF THE QUEENSLAND MUSEUM. 
4. HALTICHELLA BICOLOR Ashmead. Female. 
Length, 3.5 mm. 
Head and thorax black, closely punctate and clothed with a sparse, silvery white 
pubescence; scape, legs and abdomen ferrugineous; flagellum long, filiform, cylindrical through- 
out, black. Head concave anteriorly; vertex transversely acute, anterior depression bounded 
by a delicate carina, the same extending across vertex and separating front ocellus from 
lateral ocelli. Wings hyaline, venation brown, postmarginal vein acute, longer than the stigmal 
vein. Hind femora much swollen and armed with numerous minute black teeth. Abdomen 
pointed, ovate, ovipositor subexserted. 
Habitat: Australia. 
Type: No. 4880, United States National Museum, Washington, D.C., U.S.A. 
5. HALTICHELLA PARVULA new species of Girault and A. P. Dodd. Male. 
Length, 1.50 mm. 
Black; tibie suffused with yellow; tarsi golden yellow; antennal scape black, rest of 
antenna brownish yellow. Thorax with large, circular scattered punctures; scutellum simple. 
Abdomen not as long or as wide as the thorax, smooth; second segment occupying half the 
length, the third as long as the second, the others very small. Posterior coxe not much 
smaller than the swollen femora, which have numerous fine teeth. Wings slightly clouded; 
marginal vein two and a half times longer than the stigmal which is rather short, the post- 
marginal not developed. Antennew inserted near the mouth, 13-jointed, one ring-joint, three 
club joints; pedicel short, as wide as long; funicle joints about subequal, all a third longer 
than wide; club distinctly longer than the preceding joint, the third joint not small. 
Habitat: Cairns, Queensland. Forest. December 24, 1913 (A.A.G.) 
Type: No. Hy 38389, Queensland Museum, Brisbane, the female on a tag, the head on 
a slide. 
6. HALTICHELLA STOKESI Crawford. Female; male. 
Length, 5 mm. Black, lower margins of abdominal segments reddish brown; tegule and 
legs, including coxe, red; head closely, coarsely punctured; facial excavation bounded by a 
carina, which includes anterior ocellus; carina at tip of antennal fossa situated just in front of 
anterior ocellus; pronotum sculptured about as head; mesonotum with somewhat finer punctures,. 
separated by about a puncture’s width; scutellum with an apical emarginate plate; propodeum 
with the lateral angles produced; mesopleure longitudinally rugose, posterior part of mesopleure, 
metapleure and sternum umbilicately rugoso-punctate; wings with u small infuscated spot 
covering marginal vein and extending about half way across wing; apicad of this a slightly 
smaller discal spot; postmarginal vein longer than the marginal; abdomen smooth, polished, the 
apical segments finely reticulately lineolated. 
The male measures 4 mm. Similar to the female, the punctures of mesothorax closer ; 
wings hyaline; front legs black, intermediate legs brownish black, posterior tibie with basal 
two thirds fuscous; all tarsi slightly lighter than their tibie. 
Habitat: Glen Innes, New South Wales. 
Type: Cat. No. 13,971, United States National Museum, Washington, D.C., U.S.A. 
GEeNuS TRICHOXENIA Kirby. 
1. TRICHOXENIA CINERARIA (Walker). Genotype. 
‘* Haltichella cineraria Walker, 1871, pt. iii., p. 45. 
H. subfasciata Walk., described on the same page, appears to be only a smaller variety 
with paler wings. Both insects are from South Australia. 
Antenne inserted far below the eyes and near the mouth, 12-jointed; face deeply 
channelled as far back as the ocelli for the insertion of the scape; scape one fourth of the length 
