Kinsey: Studies of CynipidsB 



17 



radius not infuscated. Probably an examination of the di- 

 morphus type would modify this comparison and disclose 

 other points of difference. 



Cynips vacciniiformis was described from Q. stellata galls 

 which are undoubtedly those of verifactor, and from Austin. 

 But the description of the single insect obtained is far from 

 correct for the true producer of this gall, and apparently 

 applies to a different species mistakenly supposed to have 

 come from verifactor galls. Vacciniiformis was described in 

 1913. Of course insects bred from galls collected in 1917 

 and now labelled cotypes in at least a couple of collections, 

 cannot have any standing as type material. 



Andricus lasius (Ashmead) 



FEMALE. — Mostly rufous, head and thorax moderately hairy, an- 

 tennse with 14 or 15 segments; median groove almost lacking; cubitus 

 very faint, short; length under 2,5 mm. HEAD: Not quite as wide as 

 the thorax, distinctly enlarged behind the eyes; lighter or darker rufous, 

 darker on tips of mandibles; finely rugose, scatteringly hairy, front 

 almost naked. Antennae brown, lighter basally; hairy; with 14 or 15 

 segments, the hrst not especially long, the second globose, the third not 

 much longer than the fourth, the last more than twice the length of 

 the preceding or incompletely divided. THORAX: Entirely yellow 

 rufous; moderately hairy; mesonotum punctate, parapsidal grooves dis- 

 tinct, gradually convergent posteriorly, only gradually divergent an- 

 teriorly; median groove almost lacking, brokenly indicated at the scutel- 

 lum; anterior parallel lines barely indicated, lateral lines distinct, long, 

 smooth, and naked; scutellum elongate, broadest almost at the posterior 

 end, shallowly punctate to rugoso-punctate ; the basal foveae narrow, 

 smooth at bottom, divergent, widely separated; pronotum laterally finely 

 rugoso-punctate; mesopleuras smooth, punctate, finely rugose beneath the 

 tegulse, less densely hairy. ABDOMEN: Lighter or darker rufous, 

 darkest dorsally, smooth, hairy latero-basally, on the ventral spine, and 

 on the ventral valves; edges of segments almost vertical, the ventral 

 edges only slightly rounded, ventral spine short, blunt. LEGS: Yellow 

 rufous, middle and posterior tibiae and all tarsi darker; quite hairy; 

 tarsal claws moderately heavy, toothed. WINGS: Clear, hairy, the 

 margins ciliate; cross veins and subcosta brown; areolet of moderate 

 size; cubitus very faint, not extending half way to the basalis; radial 

 cell open, rather long, second abscissa of the radius distinctly curved; 

 first abscissa arcuate-angulate. LENGTH: 2.0-2.5 mm. 



GALL. — A more or less globular, wool-covered, leaf gall. Poly- 

 thalamous, with a half dozen or fewer cells. Roughly globular, flattened 

 basally, 10. mm. in diameter, covered with short, dense wool about 2. 

 mm. thick, the wool at first bright golden brown, weathering light gray 

 or black. Internally hard, woody, solid except for the larval cells, which 



2—21784 



