306 MEMOIRS OF TEE QUEENSLAND MUSEUM. 



EUCGELOCYBOMYIA new genus. 



Like Coelocybomyia Girault but metallic, the antennal club only 2-jointed, the antennae 

 12-jointed. The marginal vein is somewhat longer than the postmarginal which is long and 

 slender, subequal to the stigmal vein. The postscutellum is longer than with the other genus, 

 triangular and as long as wide (much wider than long in Ccelocybomyia) while the propodeum 

 bears a distinct median carina. Also, the pedicel is short, not long as in the other genus. 



1. EUCKELOCYBOMYIA AEREA new species. Genotype. 

 Female: — Length, 1.85 mm. 



Dark metallic green, the scutellum ameous, the fore wing with a stain just under the 

 stigmal vein; tegulse and legs deep golden yellow, the hind coxa and femur metallic green. 

 Scape and pedicel metallic; rest of antenna? golden yellow. Margin of eyes dorsad and face 

 golden yellow. Thorax finely, transversely reticulated, the scutellum shining but polygonally 

 reticulated. Mesopostscutellum subcorneal, triangular. Propodeum with a distinct median 

 carina, glabrous discally cephalad. Abdomen depressed but conical, as long as the rest of the 

 body, coppery, coarsely scaly, the incisions smooth. Pedicel short, the funicle joints all trans- 

 verse. Otherwise as in the type species of Ccelocybomyia. 



Described from one female reared from galls on young gum, March, 1911 (F. P. Spry). 



Habitat: Melbourne, Victoria. 



Type: In the National Museum, Victoria, the specimen on a tag, the head on a slide. 



Genus CCELOCYBELLA Girault. 



Head normal, rounded ; vertex broad; lateral ocelli distant from the eyes. Antennas 

 inserted near middle of face, slenderly clavate, 13-jointed with three ring-joints, five funicle and 

 three 'club, all wider than long except distal joint of club; pedicel long obconic, as long as the 

 four joints following (ring-joints and proximal funicle joint). Occipital margin obtuse; 

 prothorax conical, short; mesoscutum with complete, distinct parapsidal furrows, the scutum 

 slightly longer than the ungrooved scutellum. Propodeum with a very weak median carina, the 

 spiracles moderate in size, round ; no lateral carina? nor sulci. Abdomen sessile, depressed, about 

 as long as the thorax, the second segment a third its length ; ovipositor not exserted ; abdomen 

 from dorsal aspect ovate, widest about the middle, wider than the thorax. Submarginal vein 

 unbroken, at least two and a half times longer than the marginal, the latter nearly twice the 

 length of either stigmal or postmarginal, both of which, for them, are moderately long; stigmal 

 vein with a rather large, rounded knob and a distinct neck which is as long as the diameter of 

 the knob. Discal cilia dense and fine, the marginal very short. Tarsi 5-jointed; tibial spurs 

 double and very unequal, the intermediate longer one very long, the posterior ones short, one 

 much smaller and obscure. Nonmetallic, marked with yellow, the wings hyaline. Axilla? 

 separated by a short distance. Mandibles bidentate, the second tooth truncate, unequal in the 

 two mandibles. 



1. C(ELOCYBELLA VARIEGATA Girault. Female. Genotype. 

 Length, 1.75 mm. 



Opaque black marked with yellowish brown or lemon yellow as follows: Caudal margins 

 of eyes, face, cephalo-lateral angle of the parapside, all margins of scutellum except posterior 

 one, vertexal margin of eyes more or less, lateral margins of scutum narrowly, lateral and caudal 

 margins of axilla, caudo-lateral angles of propodeum (lemon yellow), base of abdomen rather 

 broadly (bright lemon yellow), the yellow invaded and divided by an acutely triangular shining 

 black medial area, its base proximad; incisions following segments 2 and 3 on each side, the 



