410 THE CANADIAN ENTOMOLOGIST 



A NEW GENUS OF OMPHALINE EULAPHID CHALCIS- 

 FLIES FROM MARYLAND. 



BY A. A. GIRAULT, GLENNDALE, MD. 



Euderomphale, new genus. 



Female. — Form of Chrysocharies. Head (cephalic aspect) 

 rounded. Antenna inserted at the clypeus, clavate, 8-jointed, 

 with two large ring-joints and one funicle, the pedicel longer than 

 the funicle and ring-joints combined. Parapsidal furrows com- 

 plete, much curved, the parapsides ovate. Scutcllum simple, 

 much wider than long, short-hemispherical. Propodeum short, 

 noncarinate, the spiracle minute, round, cephalad. Marginal 

 vein subequal to the submarginal, the postmarginal absent, the 

 stigmal rather long, linear. Marginal fringes of the fore wing 

 moderate (a fifth of the greates^wing width). Mandibles acutely, 

 equally bidentate. 



Euderomphale fuscipennis, new species. (Genotype.) 



Female. — Length 0.90 mm. 



Metallic purple, the knees very narrowly and the first three 

 tarsal joints white, the cephalic tibiae brownish. Fore wings 

 smoky under the whole of the marginal vein, the distal margin of 

 the infuscation oblicjue but entire. Venation fuscous; base of 

 fere wing more or less smoky. Caudal wing infuscated like the 

 fore wing, with about eight lines of discal cilia where widest (at 

 apex of the marginal vein). Body reticulate, scaly, shining. 

 Scape long, obclavate, the pedicel over twice longer than wide at 

 apex; ring-joint 2 twice the size of 1; funicle cup-shaped, sub- 

 quadrate, over twice the size of the ring-joints united; club conic- 

 ovate, and with a distinct terminal spine which is nearly as long 

 as the joint which bears it; club as long as the scape or as the 

 flagellum (funicle plus pedicel and the ring-joints). 



One female, Glenndale, Maryland; from a neglected meadow, 

 by sweeping, June 22, 1916. 



Type. — Catalogue No. 20349, U. S. N. M., the specimen on a 

 slide. 



December, 1916 



