338 MEMOIBS OF TEE QUEENSLAND MUSEUM. 



POLYGYSTOMYIA new genus of A. P. Dodd. 



Female: — In Girault's table of genera {see Memoirs of Queensland Museum, vol. II) 

 running close to Folycysteloides Girault and Eurydhiotoniorpha Girault but differing from 

 both these genera in bearing a noucarinate propodeum. Antennse 13-jointed with three 

 ring and three club joints. Parapsidal furrows one third complete. Scutellum simple. Pro- 

 podeum punctate, rather long, without carinas or sulci. Abdominal petiole very short; abdomen 

 conic-ovate, depressed above, gently convex beneath, no longer than the head and thorax united > 

 second segment occupying barely one fourth of surface, 3-5 subequal, each barely half as long 

 ^s 2, 7 somewhat lengthened. Marginal vein somewhat longer than the postmarginal, the latter 

 almost twice as long as the stigmal. Mandibles not seen. 



1. POLYGYSTOMYIA PUNCTATA new species of A. P. Dodd. Genotype. 



Female: — Length, 2.60 mm. 



Dark metallic green, the posterior coxa^ aud base of other coxaj concolorous, rest of legs 

 and antennal scape and pedicel golden yellow; rest of antennse black. Thorax, including pro- 

 podeum, densely punctate. Wings hyaline. Pedicel subequal to last funiele joint, which is 

 distinctly longer than wide, funicle 1 distinctly longer than the pedicel, the others gradually 

 shortening; club no wider than funicle, as long as two preceding joints united; first two club- 

 joints subequal; ring-joints increasing in size, the first small. 



Described from one female caught by sweeping in jungle, December, 1913 (A. P. Dodd). 



Eaiitat: Gordonvale (Cairns), Queensland. 



Type: No. BySS13, Queensland Museum, Brisbane, the specimen on a tag, the liead 

 on a slide. 



PTEROSEMELLA new genus. 



For diagnosis, see antea, p. 317. The genotype is a new species. It measures 1.S5 mm. 

 and its types are six males on a card, the head and hind legs on a slide. The tegulse are pallid. 



Gexus MEEISMOMORPHA Girault. 

 1. MERISMOMORPHA ACUTIVENTRIS Girault. 

 The type measures 1.50 mm., is a female on a tag and was captured May 18, 1913. 



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



Female: — Head no wider than the thorax. Antenna 13-jointed, with two ring and 

 three club joints. Pronotum not long; scutum with complete parapsidal furrows; scutellum 

 with a delicate cross-suture. Propodeum scaly, with a distinct median carina, also a cross- 

 carina, the lateral ends of which curve abruptly eephalad, joining the cephalic margin mesad 

 of the spiracles and thus forming short lateral earinse; spiracle small and rounded, without 

 distinct spiracular sulci. Petiole of abdomen short and stout. Abdomen conic-ovate, longer 

 than the thorax, straight above, convex beneath; second segment occupying one third of the 

 surface; third and fourth segments subequal, each one half shorter than the second; fifth half 

 as long as the third ; sixth and seventh subequal, each as long or slightly longer than the fourth. 

 Ovipositor exserted for a length equal to one third that of the abdomen. Marginal vein one 

 third longer than the postmarginal, the latter twice as long as the stigmal. Mandibles 3 and 

 4 -dentate. 



