AMERICAN HYMENOPTERA. 95 



Three males bred from gulls reseml)lin<r those of HoIcaspU montl- 

 coJa Gill. 5111(1 sent me by Mr. Trevor Kiiicaid, of Olympia, Wash., 

 differ from the specimens bred here by having the hind tibite blackish 

 in color. Five males from Ames, la., seem to differ only in having 

 the sides of the abdomen somewhat less punctured. 



Syiiergiis iiiciidax Walsli. 



.^ynergns mctuhtx Walsli, Pnic. Ent. Soc. Pliila. ii, 1864. p. 498. n. 21, 9 . 



Si/nergus mendiix O. S.. Proc. Ent. Soc. Phila. iv, 1865. p. 378, n. 7, 9 • 



Synergns mendax Cresson, Syn. Am. Hymen. 1887, p. 180. 



Synergiis mendax De Dalla Torre, Cat. Hymen, ii, p. 112. 

 " Female. -Black. Head, with the space behind the eyes (but not the occi]iut), 

 and also the face below the origin of the aiiteunie and the mouth, dull yellowish 

 brown varying from dark to pale, the vertex pale and moderately polished, the 

 rest of the head opaque and moderately pubescent. Antenna; nearly as long as 

 the body. 14-jointed with the last joint hardly longer than the penultimate, yel- 

 lowish brown with the two basal joints blackish. Thorax with the coUare very 

 finely rugose, the mesonotum before the scutel with coarser transverse waving 

 striie or rugosities, and with two acute longitudinal strise converging on the scutel, 

 between the bases of which strife is a shallow, but widely impressed fovea; scutel 

 rugose, with the two basal fovetc subobsclete : under the wings is a small, but 

 highly polished round spot. Abdomen highly polished ; the joints succeeding 

 the second concealed by it; the second joint dorsally describing an arc of 30° ; 

 ventral valve moderate, thin, brownish subhyaline, its tip unarmed and at an 

 angle of 45° ; sheaths extending a little below or above the line of the back, with 

 the ovipositor generally protruding from between them. Legs dull ])ale brown 

 or brown-black, the trochanters, the knees and the tarsi, except their tijjs, honey- 

 yellow or dull rufous, each successive pair of legs a little darker than the preced- 

 ing. Wings hviiline, veins rather fine, the principal ones lightly tinged with 

 brown, the cubitus hyaline and indistinct ; areolet moderate, its two basal sides 

 hyaline ; radial area about two and a half times as long as wide, distinctly closed 

 by a brownish vein, the areolet placed scarcely more than one-fourth of the way 

 from its basal end. Length : female .08-.10 inch. ; male unknown." 



jNIr. Walsh's specimens were bred from the galls of Andriciis po- 

 daf/ne. I have eleven specimens of this species that I bred from an 

 unknown twig gall upon (2uercas rubra at Lansing, INIich. Six of 

 these are males, and may be distinguished from the females as fol- 

 lows : Length .06 of an inch ; head (except vertex and occijiut), 

 antennjie and entire legs, light straw-yellow ; thorax and abdomen 

 deep black. 



Syiiergus batatoides Ash. 



Syuerijns hataloides Ash., Trans. Am. Ent. Soc. xii, 1885, p. 301, 9 % ■ 

 Synergiis hatatoides Cresson, Syn. Am. Hymen. 1887, p. 180. 

 Synergns baiatoides De Dalla Torre, Cat. Hym. ii, 1893, p. 109. 

 "Length .12-. 14 inch. Head, antennae and legs, yellowish; head punctate, 

 with a brown blotch on vertex ; antennse short, 14-jointed in female, 15-jointed 

 in male. Thora.x and abdomen black, the latter polished, the thorax is coarsely 

 punctate and finely pubesceiit. Wings hyaline, veins brown." 



TRANS. AM. ENT. SOC. XXIII. M.4.RCH, 1896. 



