ART. 28 CHALCID FLIES NORTH OF MEXICO BALDUF 81 



Male. — Length 2.5 to 2.9 mm., rather slender compared with 

 females, distribution and relative degrees of yellow and black much 

 as described for querci-lanae var. dorsalis (Fitch), as follows: Head 

 black, a narrow ocular band and a short oblique stripe from it 

 toward antennal scrobe, and oral area not up to antennal fossae, 

 brownish yellow; scape dull yellow, pedicel brown on basal two- 

 thirds, its apex lighter, flagellum brown on one specimen and 

 yellowish on another, probably usually chestnut-brown; neck black, 

 pronotum with a black rectangle on mesal third or more, its sides 

 dull lemon yellow, mesothorax black, but sometimes hind portion 

 of scapulae, pleura just below tegulae, and tegulae, brownish yellow; 

 metathorax, propodeum, and peduncle black; legs a slightly lighter 

 shade of yellow than sides of pronoton, except front and middle 

 coxae blackish at base, darker on the anterior surface, hind coxae 

 entirely blackish except apical fifth and small part of hind surface 

 feebly brown yellow, stigma brown, band rudimentary; abdomen 

 brown-black above and on most of lateral surface, venter brown. 



Pedicel twice as long as thick and slightly longer than Fl, F2 

 to F4 subequal in length and diameter, each about one-half longer 

 than thick, the flagellum moderately hairy; male otherwise like 

 female in dimensions of head, vestiture, and sculpture. 



Tyjye locality. — Jacksonville, Fla. (W. H. Ashmead). 



T'ype.—Female, U.S.N.M. No. 2819. 



Remarks. — The type, allotype, and a series of mostly female para- 

 types were used in preparing the redescription of the species. A 

 few nontypes are at hand. Among these are two females received 

 from L. H. Weld, who reared them from galls of Gallirhytis 

 ■fiavipes (Gillette) at Moline, 111. 



The lots listed below bearing Hopkins numbers are of special 

 interest because they resemble the darker specimens of D. que/rci- 

 lanae (Fitch). Here, as in the nigriceps-glolyuli-duhia series, as well 

 as in the -fioTida-occidentalis group, there appears to be an intergrad- 

 ing of characters, with the result that arbitrary color marks of 

 doubtful value need to be adopted to separate foliatae from querci- 

 latme. Some of the present Hopkins specimens have only a small 

 black patch on the scapulae, which with the rather broad black 

 mid-dorsal band on the mesonotum, and the almost dark vertex, is 

 regarded as a recognition mark of foliatae. I suspect that eventually 

 a complete color series ranging from the lighter, mostly yellow 

 querci-lanae to the darker, mostly black foliatae may be found when 

 large numbers have been reared from different localities in the 

 distributional limits of these species. Some of the Hopkins speci- 

 mens are from galls of Disholcaspis., whereas all other foliatae 

 known to date are from other cynipid genera. Most of the querci- 

 67088—32 6 



