﻿334 PROCEEDINGS OF THE NATIONAL MUSEUJVI vol. m 



grooves deep, percurrent. Scutellum longer than broad, an arcuate 

 groove and two shallow pits at base, disk finely rugose, pubescent, over- 

 hanging propodeum behind. Mesopleuron smooth, shining. Wing 

 pubescent and ciliate, without clouds, veins distinct, brown, abscissa 

 II of radius enlarged at wing margin, areolet reaching one-fifth way 

 to basal. Claws toothed. Carinae on propodeum strongly bent, en- 

 closed area smooth, much broader than long medially. Abdomen as 

 high as long, only 2 or 3 tergites on dorsal margin. Ventral spine 

 stout, bristly, tapering to tip in side and ventral view. Using width 

 of the head as a base the length of mesonotum ratio is 1.3 ; antenna 

 2.3; wing 3.8; ovipositor 2.5. Length 1.5-2.35 mm. Average of 24 

 specimens 2.02 mm. 



Male. — Differs from female in having head and abdomen black and 

 16-segmented antennae. Lfcngth 1.5-1.9 mm. Average of 13 speci- 

 mens 1.58 mm. 



Differs from some other species of Antron in having the wing clear. 



Tyj>es. — U.S.N.M. No. 60121, type female, allotype, and six para- 

 types. Paratypes also in the A.M.N.H., C.M.N.H., A.N.S.P., C.A.S., 

 and the M.C.Z. 



Host. — Quercus subturhinella. 



Gall (pi. IT, fig. 19) . — A broadly conical bud gall, usually solitary, 

 at end of new growth in summer. Straw yellow above with a purple 

 margin, 4-7 mm. in diameter, broader than high, strongly concave 

 below like the pileus of the fungus Goprinus. Larval cavity at very 

 apex and exit hole just below the short nipple. 



Habitat. — The type material was sent by Mrs. N. W. Capron, from 

 Prescott, Ariz., July 12, 1947, and one adult (the type female) emerged 

 en route. More galls were sent August 1, 1947, and dead adults were 

 cut out of the galls. More were sent in early July 1949, and adults 

 emerged July 10-19. In previous years she had sent galls from Camp 

 Creek, Cherry, Pine, and Young, and I had collected them at Ash 

 Fork and Williams, Ariz. 



Genus ZOPHEROTERAS Ashmead 



ZOPHEROTERAS GUTTATUM, new species 



Female. — ^Living specimens black ; head and thorax fading to brown. 

 Head coriaceous; from above transverse, occiput concave, cheeks not 

 broadened behind the eyes; from in front broader than high, inter- 

 ocular area 1.4 times as broad as high, malar space .5 eye, with a groove, 

 antennae 14-segmented, filiform, lengths of first four and last seg- 

 ments as 15 : 5 : 16 : 13 and 10. Mesoscutum coriaceous, bare, longer 

 than broad, not humped in profile, parapsidal grooves distinct, per- 

 current, widely separated in front, almost meeting behind. KJnob 

 on scutellum coriaceous, almost as wide as deep groove at base, in 



