﻿332 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



anterior lines depressed. Sen tell urn finely rugose, pubescent, basal 

 pits smooth, shallow. Carinae on propodenm short, straight, parallel 

 Wings hyaline, cilia and pubescence short, veins brown, first abscissa 

 of radius angled, areolet reaching one-fourth way to basal, Meso- 

 pleuron largely bare, smooth, polished. Claws toothed. Abdomen 

 almost globose, tergite II with usual pubescent patches at base, its hind 

 margin and exposed parts of rest punctate. Ventral spine bare, five 

 times as long as broad in side view, shorter than hind metatarsus. Us- 

 ing width of head as a base the length of mesonotum ratio is 1.4; an- 

 tenna 1.3; wing 3.7; ovipositor 2.4. Length 2.5-3.15 mm. Average 

 of 30 specimens 2.79 mm. 



Types. — U.S.N.M. No. 60119: Type and six paratypes. Paratypes 

 also in the A.M.N.H., C.M.N.H., A.JST.S.P., C.A.S., and M.C.Z. 



Host. — Quercus subturbinella. 



Gall (p. 17, fig. 15). — A bare, smooth, ellipsoidal gall, 5.0 mm. long 

 by 2.9 mm. in diameter with a nipple at the apex, protruding from a 

 shallow depression in the side of the acorn cup and dropping to the 

 ground when mature in late summer, and then showing a girdle of 

 hairs at the base. From one to eight on an acorn. Monothalmous. 



Hahitat. — The type locality is Prescott, Ariz. From galls collected 

 in October 1935 by Mrs. N. W. Capron, adults were cut out on Octo- 

 ber 10, 1936, and one emerged April 23, 1937. In July and August 

 1947 she tied bits of cloth over a lot of affected acorns, so that the 

 galls would not drop to the ground and be lost. Adults were cut out 

 of these galls on March 20, 1948 and January 7, 1949. More were 

 bagged in the summer of 1948, when the galls began to drop by the 

 middle of August, a month earlier than usual, perhaps owing to a dry 

 season. Many of these were blanks. Adults emerged April 15, 23, 

 26, 30, 1949. 



ANDRICUS PILULA Bassett 



This species was described from two females cut from galls from 

 southern Utah. The types have the claws toothed, not simple as 

 described. Similar galls were collected by Dr. A. W. Grundmann 

 on QuercKS gambelii in the mountains near Salt Lake City, Utah, 

 and both females (agreeing with the types) and males were reared 

 June 1-5, 1949. A description of the male is given below. 



3Iale. — Black, flagellum and legs in part yellowish. Antenna 

 nearly three times as long as width of the head, 15-segmented, third 

 longer than fourth and bent, flagellum tapering to tip. Mesoscutum 

 coriaceous, median groove shorter than in female. Disk of scutellum 

 finely rugose, foveae smooth. Mesopleuron bare, smooth except for 

 a few striae in middle. Wing pubescent and ciliate, veins brown, 

 areolet wanting, cubitus traceable from margin nearly to basal. Claws 

 toothed. Carinae on propodeum slightly bent. Abdomen shorter 



