Aiir. 15'. ItEVISION OF SUBFAMILY PLATYGASTEKINAE FOUTS. 107 



densely pubescent on the sides; abdomen distinctly longer than the 

 head and thorax united, as wide as the thorax; second tergite sculp- 

 tured as in relativa; tergites beyond, the second not sculptured, each 

 traversed by a row of short white hairs ; wings hj'^aline, not quite at 

 taining the apex of the abdomen. Shining black to pale brown; 

 antennae dark bro'wm; legs of varying shades of brown, sometimes 

 dark and sometimes lighter, with the anterior tibiae apically and the 

 tarsi of a paler color. 



Male. — Length 1 mm. Pedicel one and one-half times as long as 

 wide, as wide as joint five; third antennal joint nearly as wide as the 

 pedicel, a little wider than long; four as long and as wide as the pedi- 

 cel, slightly widened apically; following joints (except the tenth) 

 rounded, not longer than wide; ten as long as three and four united, 

 conical, sharply pointed, the sides curved; abdomen broadly ellipti- 

 cal, somewhat shorter than the head and thorax united, narrower 

 than the thorax, twice as wide as long, narrowly rounded posteriorly; 

 second tergite four-fifths as wide as long, rounded anteriorly, the 

 sides curved; segments three to seven united less than half as long 

 as the second; wings hyaline, extending half the length of the second 

 tergite past the apex of the abdomen. 



Type locality. — Bushberg, Missouri. 



Type. — Cat. No. 25446, U.S.N.M. Eleven paratypes in Collection 

 Fonts. 



Described from 28 females and 4 males, reared by Theodore Per- 

 gande, September 21, 1876, from galls on Solidago. 



Mr. Pergande's note reads as follows: "Found in Bushberg, Mo., on 

 Solidago, Hymenopterous galls in the shape of little seedpods grow- 

 ing out where the seed would have been; they are about -^ of an 

 inch in length, round and with the ends straight; of a reddish brown 

 color, covered with fine white hairs; in the gall there is an oval cell 

 with mostly one, sometimes two or three larvae in it. Sept. 21, 1876. 

 Many Hymenopterous parasites issued, mounted and marked 700P." 



Since the above was written I have received a large series of speci- 

 mens of variahilis from R. W. Leiby, of the North Carolina State 

 Department of Agriculture. The specimens are from Raleigh, North 

 Carolina, and were reared September 18-30, 1921, from the galls of 

 Rhopalomyia Carolina or R. solidaginis on goldenrod. Mr. Leiby 

 expressed doubt in his letter as to the identity of the host. 



The specimens m this series are all darker in color than the types. 

 Mr. Leiby suspected that there were two species represented, since 

 in some instances parasites issued from the host to the number of 25 

 and in other cases only to 2 to 4. The individuals reared in large 

 numbers are somewhat smaller than the others but the}- are certainly 

 the same species. 



