Kinsey: Gall Wasp Genus Cynips 
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length; if the wings are long, the second abscissa of the radius (agamic 
forms) is somewhat curved, with an indication of a slight angle one- 
third to two-thirds of the way from the base, the vein usually ending 
in an angulated expansion; the second abscissa in bisexual forms is 
more nearly straight; the radial cell is only moderately long and quite 
broad (agamic forms), or a little longer and more narrow (bisexual 
forms); the radial cell is always clear of spots; the areolet is very 
small to very large; the cubital cell is entirely clear or (more often) 
with large, smoky patches (not spots); the discoidal cell is always clear; 
moderately stout to slender insects, 1.2 to 3.5 mm., agamic forms averag- 
ing nearer 2.7 mm., and bisexual forms nearer 2.0 mm. in length. 
MALE. — Differing from the bisexual female as described for the 
genus. 
GALL OF AGAMIC FORMS. — Usually spherical; cone-shaped in 
one species ( conica ) ; moderate-sized galls; smooth and naked or min- 
utely pubescent or coarsely faceted or closely set with slender, flexuous 
spines which in one species (nubila) form a dense, woolly, or hair-like 
coating that completely covers the central core; the galls thick- walled, 
loosely crystalline or compact; usually with a large central cavity oc- 
cupying most of the gall; in one species ( pezomachoides ) with from 
1 to 8 larval cavities side by side, the gall consequently more ellipsoid 
than spherical; in every case without a distinct larval cell. Attached 
singly or (more often) to the under surfaces of the leaves of white 
oaks of all the groups found in the range of the subgenus. 
GALL OF BISEXUAL FORMS.— As far as known: Small, thin- 
walled, elongate egg-shaped; monothalamous, rarely two or three fused 
FIG. 49. KNOWN RANGE, SUBGENUS ACRASPIS 
Shading and figures indicate number of species known from each area. 
