AUSTRALIAN HYMENOPTERA CHALCIBOIDEA, VI.— GIRAULT. 339 



1. PTEROSEMIGASTRA CENONE new species of Girault and A. P. Dodd. Genotype. 

 Female: — Length, 2.10 mm. 



Very dark metallic purplish, the coxae eoacolorous, the second abdominal segment brilliant 

 metallic blue-green; rest of legs, antennal scape and funicle joints 4-6, bright golden yellow; 

 rest of antennas dusky yellow. Wings hyaline. Pedicel distinctly longer than any of the funicle 

 joints; funicle joints slightly clavate, almost subequal; 1-5 longer than wide, the sixth quadrate; 

 club as long as the two preceding joints combined; first club joint as long as the other two 

 combined. 



Described from one female caught by sweeping jungle along a forest stream, June 14, 

 1913 (A. P. Dodd). 



Habitat: Northern Queensland (Gordonvale near Cairns). 



Type: No. Hy 2813, Queensland Museum, Brisbane, a female on a tag, the head and 

 hind legs on a slide. 



2. PTEROSEMIGASTRA NIGRIFLAGELLUM new species of Girault and A. P. Dodd. 



Female: — Length, 1.75 mm. 



Dark metallic green, the coxa? concolorous; abdomen suffused with brown, the first seg- 

 ment bright metallic blue-green; femora dusky brown; tibiae, tarsi and antennal scape golden 

 yellow; pedicel dusky brown; flagellum black. Differing from ceuone in having the marginal 

 and postmarginal veins subequal, each over twice as long as the stigmal; abdomen slightly 

 convex above, the second segment not occupying one fourth of the surface, 3 not a half the 

 length of 2, 4 nearly twice as long as 3, 5 a little longer than 4 and subequal to 2, 6 subequal 

 to 4; funicle joints all longer than wide, the first the smallest. 



Described from one female caught in jungle, July 31, 1913 (A. P. Dodd). 



Habitat: Gordonvale (Cairns), Queensland. 



Type : No. Hy 2814, Queensland Museum, Brisbane, the specimen on a tag, the head 

 on a slide. 



PARAPOLYCYSTUS new genus of Girault and A. P. Dodd. 

 Female: — Head much wider than the thorax; antennas inserted on about the middle of 

 the face, 13-jointed with three ring-joints, three club joints; third ring-joint much longer than 

 the other two and as long as wide. Mandibles tridentate. Parapsidal furrows half complete. 

 Scutellum carinated posteriorly. Propodeum scaly, with a median carina and a distinct cross- 

 carina; very deep, distinct spiracular sulci, the mesal margin of the sulci delicately carinated. 

 Marginal vein two thirds longer than the postmarginal and twice as long as the stigmal. 

 Abdomen short, scarcely as long as thorax; petiole shorter than hind coxae, longer than wide, 

 vertical; segment 2 occupying nearly a third of surface, almost twice as long as 3. Differing 

 from Polycysteloides Girault in having tridentate mandibles, a longer marginal vein, distinct 

 spiracular sulci, a carinated caudal margin of the scutellum, a shorter abdomen and a longer 

 second abdominal segment. The cross-carina on scutellum is at caudal margin as seen from 

 direct dorsal aspect and has analogy to the cross-suture frequently found in this place but is 

 uot one as usually understood. 



■:!,:.' 

 1. PARAPOLYCYSTUS PULCHRICORNIS new species. Genotype. 



Female: — Length, 2 mm. Short, stout. Head and thorax very dark metallic green, 

 almost black; coxa? and first two pairs of femora concolorous; posterior femora and all tibiae 

 and tarsi bright golden yellow; abdomen metallic green, not bright but much brighter than 

 thorax; scape, pedicel and ring- joints golden yellow; funicle suffused with brown; club black. 

 Wings hyaline. Antennae gently clavate. Pedicel a fourth longer than funicle 1, the latter not 

 as long as combined length of ring-joints, one third longer than wide, 2 as long as 1, 3-5 shorter, 

 wider than long; club nearly as long as three preceding joints united, first joint the largest. 



