ART. 10 GALL-INHABITING CYNIPID WASPS WELD 39 



the producers emerge in the same way as A. j?etioUcoIa. Producers 

 sexual, sexes about equally numerous." So far as the writer is 

 aware this is the first published indication of an alternating genera- 

 tion for a Disholcaspis — a genus whose species are all known by 

 agamic females emerging in the late fall. 



DISHOLCASPIS PATTERSONI Kinsey 



The writer collected the galls of this species on shin oak, Quercus 

 hreviloha at Austin, Boerne, and Kerrville, Tex. Galls at Boerne 

 contained adults October 25, adults November 13, and when galls 

 were placed in out-of-door cag^' at Evanston, 111., adults emerged 

 November 20 and December 1. Five living flies were found in cage 

 February 19 after six weeks without a thaw, four more March 23 

 and one April 22. 



DISHOLCASPIS PEDUNCULOIDES, new species 



Female. — Honey-yellow, distal half of antenna and abdomen 

 reddish-brown. Head transverse, broader than thorax, coriaceous, 

 covered except on vertex with appressed pubescence. Facial quad- 

 rangle 1.27 times as broad as high. Malar space .4 eye, without 

 groove. Cheeks widened behind eyes. Antennae 13-segmented, 

 flagellum filiform, lengths as (scape) 13 (width 7) :7(6) : 16(4) : 

 15:13:11:10:8:7:6:6:6:13(4). Mesoscutum, mesopleura, and 

 sides of prothorax smooth between the setigerous punctures. Pa- 

 rapsidal grooves not reaching forward halfway. No median. Ante- 

 rior and lateral lines scarcely darker. Scutellum becoming rugose 

 behind, transverse groove at base bounded laterally and with longi- 

 tudinal ridges in bottom. Propodeum without usual carinae, spi- 

 racular areas smooth, two strong carinae from abdominal fossa to 

 each hind coxa. Hind tibia longer than tarsus, hind tarsal seg- 

 ments as 30 : 13 : 9 : 5 : 17, claw with tooth. Wing pubescent and 

 ciliate, radial cell three and seven-tenths times as long as broad, 

 open slightly at base and apex as well as on margin, first abscissa 

 of radius angled, second almost straight, areolet reaching one-fifth 

 and cubitus two-thirds way to basal. Abdomen shows ratio of 

 length to height to width as 23 : 25 : 15. Lengths of tergites along 

 dorsal curvature as 50 : 16 : 4 : : 9 : 13. Second with large sparsely 

 pubescent area on each side at base, its hind margin at angle of 

 about 80° to long axis of abdomen. Ventral spine hairy, in side 

 view conical, twice as long as broad. Using width of head as a base 

 the length of mesonotum ratio is 1.2, antenna 2.3, ovipositor 3.0, 

 wing 4.4. 



Range in length 1.7-2.9 mm., average of 130 specimens 2.24 mm. 



Related to Disholcaspis virens (Ashmead) from which it differs 

 in the more uniform coloration of the thorax. 



