170 Journal New York Entomological Society, t^oi. xxiii. 



nella in venation, tlie marginal vein being twice longer than wide, 

 not punctiform, the postmarginal and stigmal veins subequal, each a 

 little shorter than the marginal. Differs from Psyllcdontus Craw- 

 ford in having the club three-jointed, the body flatter and weaker, 

 the marginal vein not punctiform, the postmarginal vein distinct (in 

 P. insidiosHS the mandibles are weakly tridentate, the first two teeth 

 obtuse, the third truncate). Resembles closely Encyrtomyia Girault 

 of the Eucomini. Ovipositor very slightly extruded. Axillae joined 

 narrowly. The marginal cilia of the fore wing in Rhopns testaceus 

 are not long but only a little longer than normal. 



The present tribal arrangements will break down I am sure but 

 under them this is a new genus ; the dentation of the mandibles should 

 be considered not more than of subgeneric value and this form will 

 rank under Encyrtomyia as a consequence. 



I. Metallonoidea hrittanica new species. 



Female. — Length, 0.55 mm. 



Very dark metallic green, the wings hyaline, the venation pale dusky 

 yellow. Tarsi, tips of tibiae, middle knees broadly, cephalic knees and base of 

 middle femur, white. Body very finely scaly. Pedicel a half longer than 

 wide, much longer than any of the funicle joints of which one and five are 

 largest, five wider than one, wider than long, one slightly longer than wide, 

 two and three subequal, shortest, four larger than three, smaller than five. 

 Hairless line rather narrow, with four or five lines of cilia proximad of it. 

 Marginal vein with slight infuscation under it. Scutellum extending to the 

 base of the abdomen. 



Described from one female on a tag, reared from Lepidosaphes 

 ulmi, Manchester, England, Letter October 30, 1914. A. D. Imms, 

 Manchester University. " Sp. A." 



Type. — Catalogue No. 19402, U. S. N. M., the female on a tag, 

 the head and a fore wing on a slide. 



PARAHOMALOPODA new genus (Encyrtini). 



Female. — In my table to the earth's genera runs to Homalopoda 

 Howard but differs in lacking the clump of hairs from the apex of 

 the scutellum and the pair of clumps from the occiput. Also the 

 postmarginal vein is as long as the stigmal which is two thirds (or a 

 little less) the length of the marginal. Also the mandibles bear four 

 small, subacute teeth and the ovipositor is extruded distinctly but 

 shortly (more so than in the genotype of the named genus). Dift'ers 



