No. 2312. NEW NORTH AMERICAN HYMENOPTERA—ROHWER. 219 



Jkjfe locality. — Boulder, Colorado. Described from one female 

 collected May 9, 1919, by K. Fitzgerald. 

 Type.— C&t. No. 22356, U.S.N.M. 



PRISTIPHORA BETULAVORA, new species. 



This species is closely allied to murtfeldtiae Marlatt but may be 

 distinguished from that species by the smooth, polished scutellar 

 appendage and the depressed area latrad of ocelli. 



Female. — I^ength, 5. 5 mm. Supraclypeal area prominent, tri- 

 angular in outline; middle fovea shallow, oval in outline; antennal 

 furrows indicated only by broad shallow depressions which cause 

 the central area to appear somewhat raised ; postocellar line distinct- 

 ly longer than the ocellocular line ; postocellar furrow straight ; front 

 punctured, the punctures smaller and more widely separated later- 

 ally; vertex and temples polished; antennae tapering, the third 

 joint not much longer than the fourth, the fourth and fifth subequal; 

 scutum with only a few widely scattered punctures; scutellum and 

 appendages smooth, shining; stigma rounded below; fkst intercubitus 

 wanting; second recurrent about length of second intercubitus from 

 apex of cell ; third cubital slightly longer than apical width. Black ; palpi 

 in part, narrow apical margin of labrum, tegulae, trochanters, apices 

 of anterior femora, four anterior tibiae and tarsi, basal two-thirds of 

 hind tibiae white; wings hyaline, venation including costa and stigma 

 dark brown. 



Male. — Length, 4 mm. Agrees in structure and color with the 

 female; flagellum reddish-yellow beneath. 



Type locality. — East River, Connecticut. Described from three 

 (one type) females and one male. Material collected by Chas. R. 

 Ely as larvae feeding on white birch {Betvla alha) and reared at East 

 Falls Chm-ch, Virginia, under Bureau of Entomology numbers Hopk. 

 U. S. 10757(^ (type, allotype and paratype) and Hopk. U. S. 10745m. 



Type.— Cat. No 22323 U.S.N.M. 



Superfamiiy CYNIPOIDEA. 



HESAPLASTA LUCID A, new species. 



Of the described North American species this new species is more 

 like H. wehsteri Crawford, but may easily be distinguished from it 

 by the different sculpture of the scutellum and longer pedicellum. 



Female. — Length 2 mm. Head without sculpture; postocellar 

 line subequal with ocellocular line; pedicellum subequal in length 

 with the fourth joint and only a little shorter than the third joint; 

 general outhne of antennae about as in wehsteri but the apical joint 

 is about one-fourth longer than the preceding; apex of elevation of 

 scutellum with a large fovea; basally there are also two large fovea; 



