AUSTBALIAN HYMENOPTEBA CHALCIDOIDEA, VI.—GIBAULT. 341 



NEOPOLYCYSTUS new genus. 



Male: — Head (cephalic aspect) round, the mandibles 3- and 4-dentate, the antennae 

 13-jointed with three ring-joints, the club 3-jointed (but with a distal, tubercle-like fourth 

 joint, the antennae 14-jointed). Parapsidal furrows two-thirds complete from cephalad. 

 Scutellum simple. Propodeum punctate, nonearinate but with moderately short, complete 

 spiracular sulci and a fovea at cephalic margin half way to spiracle from meson; spiracle not 

 large. Postmarginal vein as long as the marginal, the stigmal a third or more shorter. 

 Petiole slender, distinctly longer than the hind coxae, the second abdominal segment next longest 

 of the segments, occupying about a fourth of the surface, its caudal margin convex, the third 

 segment as long as the second, the fourth longest, occupying half of the surface and inclosing 

 all of the rest. Pronotum transverse-linear. Fore wings with short marginal fringes. 



1. NEOPOLYCYSTUS INSECTIFURAX new species. Genotype. 

 Male: — Length, 1.75 mm. 



Dark metallic green, the wings hyaline, the scape, legs, cephalic coxa (more or less) 

 and the tegula, yellowish brown; femora washed with metallic. Eest of antenna black, the coxaa 

 concolorous. Head and thorax reticulate punctate, the abdomen polished, without sculpture. 

 Pedicel slightly longer than funicle 1, which is slightly the longest of the funicle, barely 

 longer than wide, the fifth or distal joint plainly wider than long; distal club joint simple. 



Described from four specimens selected at random from sixteen on a card in the 

 collections of the National Museum of Victoria at Melbourne, labelled ' ' 29. Eingwood, "Victoria. 

 18-12-03/' and mounted with a flower -like cluster of red nematocerous, dipterous pupae on 

 the tip of a leaf. The pupae bore two terminal horns cephalad. The pteromalids emerged 

 through a single, large, round hole in the side of each pupa. 



Habitat: Eingwood, Victoria. 



Types: In the National Museum, Melbourne, the above specimens; a slide with a head, 

 hind legs and antennae. 



TEIGONOGASTEELLA new genus. 



Female: — Head (cephalic aspect) a little wider than long, the antennae inserted in the 

 middle of face, 13-jointed with two ring-joints, the club 3-jointed, the antennae slender. 

 Parapsidal furrows half complete. Both mandibles 4-dentate. Scutellum simple. Propodeum 

 punctate, with a complete median carina and straight spiracular sulci, the spiracle cephalic, 

 small, round-oval. Petiole of abdomen distinctly projecting caudad of hind coxae which are 

 inserted farther cephalad; petiole distinctly longer than wide. Segment 2 of abdomen notched 

 at the meson caudad, longest, occupying somewhat over a third of the surface, segment 4 half 

 its length, distinctly longer than 3 which is short. Postmarginal vein elongate, as long as the 

 marginal, the stigmal distinctly shorter than either, about half the length of the postmarginal, 

 slender. 



Male: — The same but the spiracular sulcus is curved and shallower, cylindrical oval 

 instead of conic-ovate, the antennae filiform. 



1. TRIGONOGASTRELLA PARASITICA new species. Genotype. 

 Female: — Length, 1.35 mm. 



Dark metallic green, the wings hyaline, the scape except at tip, tibiae, knees, tarsi and 

 femora (more or less) yellowish brown, the femora washed with metallic. Head and thorax 

 punctate confluently. Scape slender, distal club joint simple, pedicel subequal to funicle 1 

 which is somewhat longer than wide, the following joints gradually shortening. 



