92 
Indiana University Studies 
TYPES. — Four cotype females and galls. Females and galls in 
the U. S. National Museum, and a cotype female in the Kinsey col- 
lection. Labelled Austin, Texas, Dec. 12, 1917; Q. breviloba; Weld 
collector; U.S. National Museum number 22585. 
Neuroterus contortus 
bisexual form principalis, new form 
FEMALE. — Differs from the female of the agamic form only in 
having the abdomen much smaller, hardly as long as the head and 
thorax combined, and not as high as long, not produced either dorsally 
or ventrally; and in averaging smaller, from 1.2-1. 8 mm. 
MALE. — As described for the species. 
GALL. — Not greatly different from the gall of the other generation; 
somewhat smaller and more ragged with deformed leaves and twisted 
petioles of young leaves (fig. 58). 
TYPES. — 46 females, 116 males, and 3 galls. Holotype fe- 
male and paratype females, males, and gall in The American Museum 
of Natural History; paratype adults and galls in the Kinsey collection; 
paratype adults in the U.S. National Museum, the Museum of Com- 
parative Zoology, the Philadelphia Academy, Stanford University, and 
the California Academy. Labelled Austin, Texas; April 3, 1922; Q. 
breviloba; Patterson collector. 
Neuroterus (Dolichostrophus) decipiens Kinsey 
bisexual form 
Figures 3, 49, 50 
Neuroterus decipiens Kinsey, 1922, Bull. Amer. Mus. Nat. Hist., XLVI, 
p. 292, pi. XXIV, fig. 9. McCracken and Egbert, 1922, Stanf. Univ. 
Pub., Ill (1), p. 9. 
FEMALE. — Head largely black, face yellow piceous to straw yel- 
low, mouthparts straw white; antennae brown, golden yellov/ basally, 
with 13 segments, the third almost twice the length of the fourth; thorax 
only a little longer than high and wide ; mesonotum and scutellum 
smooth, naked of hairs; mesopleurse finely roughened; abdomen wholly 
black, as long as high, distinctly produced dorsally; legs golden yellow, 
piceous on the coxae, slightly brownish in the centers of the femora; 
aireolet rather small; basalis without a brownish cloud; radial cell almost 
one-half closed; length 1. 5-2.0 mm. 
MALE. — Whole body bright yellow, hardly browner on the dorsal 
surfaces of the head and thorax and on the abdomen; eyes enlarged but 
not greatly so: the third segment of the antenna hardly longer than 
the first plus the second, distinctly curved (fig. 3). 
GALL. — A leaf blade swelling involving both surfaces of the leaf; 
each larval cell apparent on the surface as a distinct, egg-shaped cell, the 
