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MEMO IES OF TEE QUEEN SL AND MUSEUM. 
Genus POLYCYSTOIDES Girault. 
Differing from Polycystus Westwood in having 11-jointed antennas, the club solid; 
moreover the petiole of the abdomen is short and stout, the median carina of propodeum is 
intersected by a distinct transverse carina from side to side and the cephalic margin of the 
propodeum is carinated, the propodeum reticulated, with a distinct neck and spiraeular sulci; 
between the -median carina and the spiracle along the cephalic margin is a large fovea! 
Mandibles strongly tridentate. Transverse suture of seutellum faint. Segment 2 of "abdomen 
occupying about a fourth of the surface, the abdomen stout, conic-ovate, somewhat longer than 
the thorax, the caudal margin of the segments straight. Thorax indexed at the seutellum. 
Head very large, wider than long. Postmarginal vein longer than the stigmal. Distal margin 
of seutellum carinated. Antemute with two ring-joints. Parapsidal furrows incomplete, the 
axilla* widely separated. 
1. POLYCYSTOIDES TENNYSONI Girault. Female, Genotype. 
Dark blue, opaque, and punctate, the wings hyaline, the abdomen shining, aeneous 
green; legs and antennas yellowish brown but the coxa* dark blue and the club (which is 
enlarged) and distal funicle joint is black. King-joints stout; first three funicle joints 
distinctly longer than wide, 2 and 3 longest, subequal, each a little shorter than the pedicel; 
joint 4 only a little longer than wide, joints 5 and 6 shortening, 6 distinctly much wider 
than long. Club about half the length of the funicle. Scape long and cylindrical. Tarsi pale. 
Habitat: Nelson (Cairns), Queensland. 
Type: No. Hy 197 g, Queensland Museum. 
Genus PSEUDOSPHEGIGASTEKUS Girault. 
Antenna* 11-jointed with three ring-joints, the club solid and terminating in a short 
nipple. Propodeum noncarinate, rather long and with a distinct neck; from beneath this 
is appended the short petiole of the abdomen (the petiole hidden from above). Abdomen 
pointed conic-ovate, a little longer than the rest of the body, the second segment occupying 
about a third of the surface. Seutellum simple. Parapsidal furrows present cephalad only. 
Postmarginal and stigmal veins well developed, the former somewhat the longer. Mandibles 
with at least three teeth. 
1. PSEUDOSPHEGIGASTERUS GROTIUSI Girault. Female. Genotype, 
Black, the wings densely clothed, subhvaline, the abdomen with its petiole and proximal 
two thirds brownish yellow, the distal third black; legs and tegulse brown, the tarsi lighter. 
Antenna* black, the first ring- joint whitish, funicle 5 shortest, more or less subequal to 1, 
joints 2-4 longest, subequal, each somewhat longer than 1 which is subequal to the pedicel. 
Club much longer than any of fhe funicle joints. Head and thorax roughly reticulated, the 
lines raised. 
Habitat: Thursday Island, Torres Strait. Forest. 
Type: No. Hy 1973, Queensland Museum. 
2. PSEUDOSPHEGIGASTERUS AENEUS new species. 
Female: — Length, 1.85 mm. 
Differing from grotiusi in being brassy metallic green, the coxa* concolorous, the legs 
reddish brown, the abdomen uniformly concolorous with the thorax. Antenna* yellowish brown, 
