THE CANADIAN KNTOMOLOGIST. 349 



DESCRIPTION OF A NEW GENUS IN THE APHELININyE. 



BY WILLIAM H. ASHMEAD. 



Myiocnema, new genus. 



This new genus falls in a table of the genera of the Aphelininae next 

 to Encarsia, Forster, the antennae being 8-jointed and the club in the 

 female being 2-jointed. 



The head is transverse thin antero-posteriorly, the occiput concave, 

 the vertex impressed ; the thorax has several long bristly hairs, and the 

 parapsidal furrows are distinct but very delicate, almost invisible ; the 

 front wings have a large discoidal cloud beneath the marginal vein as in 

 Coccophagus orientalis, Howard, the stigmal vein is distinct, not very 

 short, but still shorter than the marginal vein and a little shorter than the 

 post-marginal, the marginal vein being a little longer than half the length 

 of the submarginal vein. The hind femora are somewhat thickened, 

 subcompressed, their tibife armed behind with stiff bristles ; all tarsi 

 5-jointed, the anterior and middle tarsi being longer than their tibiae ; 

 middle tibiae with one well-developed apical spur, the hind tibiie with 

 two short apical spurs. The abdomen seen from above is subovate, flat, 

 beneath subconvex, the ovipositor hidden. 



The only male specimen has lost its antennas, but otherwise, except 

 in having a much smaller, shorter, oval, depressed abdomen, agrees well 

 with the female. 



The genus is readily recognized by the hind tibiae, in both sexes, 

 being armed with stiff black bristles. 



Myiocnema Coinperei, new species. 



? length 1.2 mm. Head and thorax above aeneous black ; sides of 

 thorax, coxne and femora blue-black ; antennae and tegulse brown ; knees 

 of middle legs, anterior tibije and all tarsi, except terminal joints, 

 yellowish ; tibial spurs white ; middle and hind tibiae fuscous ; hind 

 tibiae in both sexes armed with stiff black bristles. Wings hyaline, with a 

 broad fuscous discoidal band below the marginal vein. 



Habitat. — Brisbane, Queensland. 



Types.— CdiK. No. 5442, U. S. N. M. 



Described from i $ and 7 ? specimens, received by Dr. L. O. 

 Howard from Mr. Alex. Craw, and bred in July, 1900, from Lecaniiim 

 clece, Bernard; collected by Mr. George Compere, the travelling agent of 

 the California State Board of Horticulture at Brisbane, Queensland. 



