Kinsey: The Genus Neuroterus 
67 
Neuroterus vernus variety vernus Gillette 
bisexual form 
Neuroterus vernus Gillette, 1889, Iowa Agric. Exp. Sta. Bull., 7, p. 281, 
1890, Ent. Amer. VI, p. 22; 1892, Proc. Iowa Acad. Sci., 1 (2), 
p. 114. Dalla Torre, 1893, Cat. Hymen., II, p. 47. Dalla Torre 
and Kieffer, 1902, Gen. Ins. Hymen. Cynip., p. 51. Nason, 1906, 
Ent. News, XVII, p. 8. Dalla Torre and Kieffer, 1910, Das Tier- 
reich, XXIV, pp. 331, 809, .822, 832. Beutenmuller, 1910, Bull. 
Amer. Mus. Nat. Hist., XXVIII, p. 128, pi. XII, figs. 8, 9. Thomp- 
son, 1915, Amer. Ins. Galls, pp. 12, 21, 41. Felt, 1918, N.Y. State 
Mus. Bull., 200, p. 78, fig. 53 (8, 9). 
FEMALE. — Apparently (from the description) has the mouthparts 
brown, antennae light brown basally, the areolet large, and the length 
1.0 to 1.3 mm. ' ! ! 
GALL. — A slight, irregular swelling of ament stems, young leaf 
veins, or petioles; on Quercus macrocarpa. 
RANGE. — Iowa: Ames (Gillette). Illinois: Algonquin (Nason). 
Probably confined to an area in the Middle West. 
TYPES. — Females and galls, in the Gillette collection (?), and the 
Philadelphia Academy; galls in The American Museum of Natural His- 
tory. From Ames, Iowa: Q. macrocarpa; Gillette collector. 
Gillette stated that this insect was '‘double brooded’', but 
failed to distinguish agamic and bisexual forms, not obtain- 
ing the male. He noted that the insects of the two genera- 
tions differ somewhat in color. He stated that the one 
(agamic) generation emerged in April, the bisexual in May 
and June. The agamic galls are confined to leaves. I have 
not seen material, and draw the descriptions from Gillette’s 
original accounts, 
Neuroterus (Diplobius) verrucarum (Osten Sacken) 
agamic forms 
Figures 12, 32, 33 
FEMALE. — Cheeks rather narrow, eyes of moderate size; meso- 
pleurse largely smooth; abdomen decidedly small, hardly larger than 
the thorax, more rounded than angulate, more or less produced dorsally ; 
legs light yellowish at the joints and on the tarsi; areolet of moderate 
size or smaller; the first abscissa usually smoothly and very slightly bent 
close to the subcosta, more angulate in a couple of varieties; length 
0.7-1. 5 mm. (fig. 12). 
GALL. — A minute cell covered with a flattened disc of wool. Mono- 
thalamous. Each gall a smooth, seed-like cell, hard, thin-shelled, en- 
tirely hollow, attached by a small point to a leaf -vein, separable, but the 
leaf depressed so at the point of attachment that the gall is not easily 
