AUSTRALIAN HYMENOPTERA CHALCIDOIDEA, VIII.—GIRAULT. 185 
AUSTRALIAN | 
HYMENOPTERA CHALCIDOIDEA—VIIL* | 
The Family Miscogasteridze with Descriptions of New Genera and Species. 
By A. A. GIRAULT. 
THe forms do not seem numerous in the Australian fauna. 
Famity MISCOGASTERID. 
SusBraAMiILy TRIDYMIN Ai. 
Tris—E TRIDYMINI. 
GENUS GASTRANCISTRUS Westwood. 
1. GASTRANCISTRUS MENZETES (Walker). 
Miscogaster menetes Walker; male, 1839, pp. 20-21. 
2. GASTRANCISTRUS ROBERTSONI new species. 
Female :—Length, 1 mm. excluding the ovipositor, the latter extruded for a sixth the 
feneth of the abdomen. 
Metallic purple, the wings hyaline; middle tibize pallid dusky; tarsi white. Thorax 
scaly, the propodeum more delicately so. Funicle joints all a litte wider than long, 2 quadrate, 
shorter than the pedicel. Hind wing with about eight lines of discal cilia. Much like 
Tetracampoides of A. P. Dodd of the Eulophidae. Antenne 12-jointed, the funicle 5-jointed, 
two short ring-joints; they are inserted nearly at the mouth border, ventrad of the ends of 
the eyes; head oblong as in Spalangia, the abdomen short yet conic-ovate and produced beneath 
at apex, the ovipositor distinctly extruded a short distance. Marginal vein a little shorter than 
the submarginal and only two and a half times the length of the rather long stigmal, the 
postmarginal slightly longer than the stigmal. Submarginal vein distinctly broken. Mandibles 
4-dentate, the teeth long, the outer distinctly the longest, slender. Parapsidal furrows distinct, 
curving off laterad before reaching the transverse pronotum. Propodeum with a median carina 
only. Abdomen sessile. Scutellum simple. Propodeal spiracle minute, round, at cephalic 
margin. ; 
Described from one female captured by sweeping on forest sand-ridges near coast, 
Tweed River, May 9, 1914 (A. P. Dodd). 
Habitat: Chindera, New South Wales. 
Type: No. Hy 3163, Queensland Museum, Brisbane, the specimen on a tag; head, pair 
of wings and a hind tibia on a slide. 
Respectfully dedicated to F. W. Robertson. 
* Contribution No. 31, from the Entomological Laboratory, Bureau of Sugar Experiment Stations, 
Bundaberg, Queensland. 
