NORTH AMERICAN TETRASTfLCHUS — BURKS 553 



equal in length, fourth segment twice as long as first, club two and 

 one-half times as long as fourth funicle segment; funicle segments 

 bearing conspicuously long bristles on enlargements near bases of 

 segments ; marginal vein of f orewing three times as long as stigmal ; 

 gaster one and one-fourth times as long as thorax. 



Type locality. — Midland County, Mich. 



Types.— UJS.N.M. No. 56246. 



Described from 9 females and 3 males, as follows : Holotype female, 

 collected at the type locality, June 28, 1938, R. R. Dreisbach ; 1 female 

 paratype, collected at White Heath, 111., June 13, 1939, P. C. Dirks; 4 

 female paratypes, collected at Arlington, Va. ; 1 female paratype, Ser- 

 geant Bluff, Iowa, reared from Asteromyia sp. gall on goldenrod, C. N. 

 Ainslie; allotype male and 1 female paratype, Sioux City, Iowa, 

 reared from Cecidomyia sp. galls on goldenrod, 1917, C. N. Ainslie; 

 and 1 female and 1 male paratypes, Sioux City, Iowa, reared from 

 Lasioptera sp. galls on goldenrod, October 6, 1916, C. N. Ainslie. 



Remarks. — Despite the apparent diversity of hosts, as indicated 

 above, this species is very likely to be restricted to a single gall maker 

 on goldenrod. 



TETRASTICHUS FUMIPENNIS (Giranlt), new combination 



Figures 13, c; 21, a 



Neomphaloidclla fumipennis Gerault, Chaleidoidea nova Marilandensis, pt. 1, 

 p. 2, 1917. 



Very dark, steel blue or shining black, teneral specimens brown; 

 variable areas on scape, pedicel, apices of femora, tibiae, and basal 

 segments of tarsi light yellow or white ; mouthparts, apices of pedicel 

 and flagellum, trochanters, basal two-thirds of femora, and apical 

 segment of each tarsus brown; f orewing sometimes with a vague 

 brown cloud in basal half; surfaces of head, thoracic notum, and 

 abdomen uniformly covered with scalelike shagreening (fig. 18, c). 



Female. — Length, 1.3-1.5 mm. Antennae inserted slightly dorsad 

 of level of ventral margins of compound eyes, apex of scape reaching 

 level of anterior ocellus; all funicle segments equal in length, and 

 each as long as pedicel, club two and one-half times as long as pedicel ; 

 length of malar space four-fifths height of compound eye ; postocellar 

 line twice as long as ocellocular. Mesopraescutum wider than long, 

 and bearing one or two somewhat irregular rows of bristles at each 

 lateral margin (fig. 18, c) ; submarginal vein of forewing with two 

 or three dorsal bristles, marginal vein twice as long as stigmal ; apex 

 of hindwing blunt, fringe at posterior margin one-fourth as wide 

 as wing at hamuli ; surface of propodeum reticulated, median, para- 

 spiracular, and oblique carinae present (fig. 21, a), mesal length of 

 propodeum one-third length of mesoscutellum ; propodeal spiracles 



53079S — 43 4 



