330 MEMOIRS OF THE QUEENSLAND MUSEUM. 



4. HALTICHELLA BICOLOR Ashmead. Female. 



Length, 3.5 inm. 



Head and tliorax black, closely punctate and clothed with a sparse, silvery Vfhitr 

 jjubescenee; 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 

 I'ointed, ovate, ovipositor subexserted. 



Eahitat: Australia. 



Type: No. 48S0, United States National Mnseum. Washinnton, D.C, U.S.A. 



5. H\LTICHELL.'^ PARVUL.'V new species of Girault and A. P. Dodd. Male. 

 Length, 1.50 mm. 



Black; tibia; suffused with yellow; tarsi golden yellow; anteunal scape black, rest of 

 antenna brownish yellow. Thorax with large, circular scattered punctures;' seutellum 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 coxje 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. Antennai inserted near the mouth, 13-jointed, one ring-joint, three 

 club joints; pedicel short, as wide as long; fuuicle 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.O.) 



Type: No. Sy3389, Queensland JInseiun. Brisbane, tlie female on a tag, the head (ui 

 a slide. 



6. HALTICHELLA STOKESI Crawford. Female; male. 



Length. 5 mm. Black, lower margins of abdominal segments reddish brown; tegula; and 

 legs, including coxa^ red; head closely, coarsely punctured; facial excavatitm 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; mesouotum with somewhat finer punctures, 

 separated by about a puncture's width; seutellum witli an ajiical emarginate plate; propodeum 

 with the lateral angles produced; mesopleura) longitudinally rugo.se, posterior part of mesopleura;,, 

 metapleurai and sternum umbilicately rugoso-punctate; wings wit): ;, small inluscated spot 

 covering marginal vein and extending about half way across wing; apicad of this a slightly 

 smaller discal spot ; postmarginal vein longer than tlie marginal ; abdomen smooth, polished, the 

 apical segments finely reticulately liueolated. 



The male measures 4 mm. Similar to the female, the ]iunctures of mesothorax closer; 

 wings hyaline; front legs black, intermediate legs brownisli black, posterior tibia' with liasal 

 two fhirds fuscous; all tarsi slightly lighter tlmn their tibia'. 



Habitat: Glen Inues, New South Wales. 



Typr: Cat. No. 1,^,971. United States National Museum, Washington. D.C, U.S.A. 



GKNtTs TRICHOXKNIA Kirl.v. 



1. TRICHOXENIA CINERARIA (Walker). Genotype. 



'■ Ihillichiihi (incranu Walker, 1S71, pt. iii.. p. 45. 



U. .iiibfasciata Walk., described on the same page, ajijiears to lie only a smaller variety 

 witli jjaler wings. Both insects are from South Australia. 



Antennae inserted far below the eyes and near the nniutli, 12-jointed; face deeply 

 channelled as far back as the ocelli for the insertion of the scape; sca|ie one fourth of the length 



