Kinsey: The Genus Neuroterus 
39 
allel and lateral lines; mesopleurse entirely but very finely roughened; 
abdomen rather angulate, higher than long, slightly produced dorsally; 
legs brownish yellow, dark brown on the centers of the coxae, femora, 
and hind tibiae; areolet very small; the first abscissa angulate-arcuate ; 
length 1.0-1.3 mm. 
MALE. — As described for the subgenus, but also differs from the 
female in being largely brown; yellow on the face, the legs (wholly so), 
and (at least) the base of the antenna. 
GALL. — A small, egg-shaped capsule in the ament. Monothalamous, 
rarely two or three more or less fused. A modified anther, each cap- 
sule egg-shaped, almost smooth, microscopically coriaceous, drying 
brownish yellow, averaging 1.5 by 0.7 mm.; thin-walled, entirely hollow. 
Scattered in the aments of Quercus Douglasii (fig. 23). 
RANGE. — California: Three Rivers. Probably occurs thruout the 
range of Quercus Douglasii. 
TYPES. — 10 females, 3 males, 27 clusters of galls. Holotype 
female, paratype females, male, and galls at the American Museum of 
Natural History; paratype females, males, and galls in the Kinsey 
collection; paratype females and galls at the U.S. National Museum 
and Stanford University; paratype galls at the Museum of Comparative 
Zoology and the Philadelphia Academy. Labelled Three Rivers, Cali- 
fornia; March 23, 1920; Q. Douglasii; Kinsey collector. 
This gall appears very early in the spring, the adults 
probably emerging a short time after the buds open on the 
oak. The species probably has an alternate, agamic genera- 
tion. It is so closely related to the other species of the sub- 
genus Diplohius that, as with them, the alternate should be 
a leaf vein or petiole swelling. As pointed out in the intro- 
duction to this paper, the monothalamous, precisely formed 
anther gall is not as specialized as it looks, but is the inevitable 
result of a simple proliferation of anther ’material. 
Neuroterus (Diplobius) howertoni Bassett 
agamic form 
Figures 37, 38 
Neuroterus Howertoni Bassett, 1890, Trans. Amer. Ent. Soc., XVII, 
p. 90. Dalla Torre and Kieffer, 1902, Gen. Ins. Hymen. Cynip., 
p. 51. 
Neuroterus howertonii Dalla Torre, 1893, Cat, Hymen., II, p. 42. 
Neuroterus howertoni Cockerell, 1900, Southwest (N. M. Normal Univ.) 
II, p. 113. Beutenmuller, 1910, Bull. Amer. Mus. Nat. Hist., XXVHI, 
p. 122, pi. XI, fig. 6. Dalla Torre and Kieffer, 1910, Das Tierreich, 
XXIV, pp. 338, 813. Thompson, 1915, Amer. Ins. Galls, pp. 13, 40. 
Felt, 1918, N.Y. State Mus. Bull., 200, p. 84, fig. 107 (6). Cresson, 
1923, Trans. Amer. Ent. Soc., XLVHI, p. 199. 
