INSECUTOR INSCITI.^ MKNSTRUUS ' 151 



Described from a single pair reared from galls on Casiia- 

 rina. Stradbroke Island (Brisbane), Queensland, October, 

 1915 (H. Hacker). 



Types. — In the Queensland Museum, the pair on tags and 

 the flagellum of each sex and female hind leg on a slide. 



Aceratoneuromyia australia, new species. 



Female. — Length, 0.90 mm. Black, the wings hyaline, the 

 knees, tibise and tarsi honey-yellow. Body scaly, no pubes- 

 cence except for long setae scattered over the pronotum (a few 

 elsewhere). Marginal fringes of the fore wing not extremely 

 short, somewhat longer than usual. Funicle joints wider than 

 long, 1 largest, somewhat wider than long, 2 and 3 still wider 

 (but shorter) ; club short-ovate, wider than the funicle, its 

 joints much wider than long, 3 with a spicule at apex. Pedicel 

 a little longer than funicle 1. Stigmal vein of moderate 

 length. Mandibles bidentate, the second tooth obtuse. 



Funicle joints in male each somewhat longer than wide, 

 but 1 is subquadrate, a little shorter than the pedicel. 



From one male, four females, associated with the fruit fly 

 (S. P. Lounsbury), 



Habitat. — West Australia. 



Type. — Cat. No. 20597, U. S. Nat. Mus. ; the specimens on 

 tags, male and female heads and female caudal tibia on a slide. 



Aceratoneuromyia, new genus. 



Female. — Head a little longer than wide, shaped somewhat 

 as in Spalangia, the antennae inserted much below the middle 

 of the face, a very little distance below the ventral ends of the 

 eyes, 11-jointed with three ring-joints, the second two of 

 which are very short and thin. Suctum and scutellum simple. 

 Propodeum with a long median carina only, the lateral and 

 caudal margins narrowly carinated, the spiracle moderately 

 large, round, cephalad. Petiole transverse-quadrate, the 

 abdomen shorter than the thorax, its dorsum sunken. Hind 

 tibial spur single. 



Male. — Similar, but the scape is swollen, the funicle 4- 

 jointed, the club 3-jointed. 



Genotype. — A. australia Girault, just described. 



