NORTH AMERICAN TETRASTICHUS — BURKS 535 



gellum, bases of coxae, and apical segment of each tarsus brown, all 

 other parts of legs and antennal scape light yellow. 



Femxile. — Length, 1.6-1.8 mm. Antennae inserted at level of ven- 

 tral margins of compound eyes and almost in center of frons; apex 

 of scape slightly exceeding level of vertex; pedicel two-thirds as 

 long as first funicle segment, second segment one-sixth longer than 

 first, third equal to first, club twice as long as third funicle segment ; 

 length of malar space four-fifths as great as height of compound 

 eye; ocellocular line one and one-half times as long as postocellar. 

 Mesopraescutum as long as wide and bearing one bristle at each lateral 

 margin ; submarginal vein of forewing with one dorsal bristle ; apex 

 of hindwing acute, fringe at posterior margin one-half as wide as 

 wing at hamuli. Surface of propodeum shagreened, paraspiracular 

 carinae present ; mesal length of propodeum one and one-half times as 

 long as metanotum and one-third as long as mesoscutellum ; spiracles 

 separated from anterior margin of propodeum by a space one-half as 

 great as length of a spiracle; gaster broad near base, acute at apex 

 (flattened in dry specimens), longer than thorax. 



Male. — Length, 1.3 mm. Funicle segments bearing conspicuously 

 long setae on enlargements near bases; pedicel and first funicle seg- 

 ment equal in length, second segment one-third longer than first, 

 third slightly longer than second, fourth equal to second; club as 

 long as third and fourth segments combined ; gaster equal to thorax 

 in length. 



Type locality. — Probably Utah. 



Types.— U.S.N.M. No. 50239. 



Described from five female and two male specimens; holotype fe- 

 male, allotype male, and four female and one male paraiypes, said to 

 have been reared from goldenrod gall made by Ewosta solidaginis 

 (Fitch), under Bureau of Entomology No. 2493 03 . by H. K. Morrison. 



Remarks. — This species probably is not a primary parasite of 

 Eurosta solidaginis. 



TETRASTICHUS PULCHRIVENTHIS (Girault), new combination 



Neomphaloidella pulchriventris Girault, Can. Ent, vol. 48, p. 101, 1916. 



Head and thorax very dark brown, almost black, faintly iridescent 

 under strong light; gaster almost entirely white, brown at dorsolat- 

 eral margins ; legs, except bases of coxae, light yellow or white ; middle 

 femora partly brown. 



Female. — Length, 1.5 mm. Pedicel two-thirds as long as first 

 funicle segment, all funicle segments equal in length; club slightly 

 shorter than second and third funicle segments combined. Meso- 

 praescutum wider than long and bearing a single pair of bristles; 

 submarginal vein of forewing with one dorsal bristle; apex of hind- 



