SEEPHOID AND CHALCIDOID PARASITES OF THE HESSIAN ELY 33 



Described from a single female specimen reared May 18, 1917, from 

 Phytophaga destructor by C. M. Packard, and recorded in the 

 Bureau of Entomology under Webster no. 13346, Martinez no. 1750. 



The species is known only from the unique female which forms 

 the type, and nothing is known of its life history or distribution. 



PSEUDERIMERUS SEMIFLAVUS, new species 



Pseuderimerus semiflavus is very similar structurally to P. femo- 

 ratus but quite different in color. It differs from mayetiolae in the 

 smoother propocleum and more convex scutellum as well as markedly 

 in color. 



Female. — Length 2 mm. Mesoscutum a little longer than scutellum ; scutel- 

 lum not flat but convex ; propocleum nearly smooth, weakly reticulated, the 

 sculpture distinctly weaker than that of scutellum ; front femur a little, the 

 posterior pair hardly at all, thickened ; first to third tergites apparently weakly 

 emarginate medially ; ovipositor exserted about one third the length of abdomen. 

 Head black with a slight aeneous cast, a little more distinctly aeneous on frons 

 and face than above; scape and pedicel black, flagellum brownish black, apex 

 of club paler ; thorax purplish black ; coxae concolorous with thorax ; front 

 femora black, except at apices ; all trochanters, apical third of front femora, 

 median and posterior femora entirely, all tibiae, and all tarsi pale yellowish ; 

 tarsal claws blackish ; wings entirely hyaline ; venation pale yellowish ; abdomen 

 pale yellow, the lateral margins of tergites 1 to 4 narrowly and a broad median 

 stripe on venter black ; ovipositor sheaths black. Otherwise agreeing with the 

 foregoing description of P. mayetiolae. Mandibles not seen. 



Male. — Unknown. 



Type locality. — Birds Landing, Calif. 



Type. — Catalog no. 44837, U.S. National Museum. 



Described from a single female specimen said to have been dissected 

 from a puparium of Phytophaga destamctor August 7, 1919, by M. C. 

 Lane and recorded under Webster no. 13346, Berkeley no. 191142. 



No other specimens of this form have been seen and nothing can 

 be said of its life history or its habits except that they are probably 

 similar to those of P. mayetiolae. 



Family EURYTOMIDAE 



EURYTOMA PHOEBUS Girault 



(Fig. 8) 



Eurytonui phoebiis Girault. U.S. Natl. Mus. Proc. 58: 204, 1921; Hill and 

 Smith, Jour. Agr. Research 36 : 153, 1928. 



DESCRIPTION 



Eurytoma phoebus Girault may be distinguished from all other 

 known hessian fly parasites except the new species which follows by 

 the umbilicately punctate head and thorax, -the subquaclrate prono- 

 tum, and the channeled propodeum. From the new species it differs 

 mainly by having the legs, except coxae, mostly dark reddish testa- 

 ceous instead of mostly black. 



Female. — Length 2 to 3 mm. Head and dorsum of thorax with large, close, 

 umbilicate punctures and clothed with fine silvery hairs ; head transverse, about 

 twice as broad as thick antero-posteriorly, a little broader than thorax ; ocelli 

 in a low triangle, the ocellocular line very slightly longer than the diameter of 

 an ocellus ; eyes short oval, nearly round, bare ; malar space only a little shorter 

 than the eye height ; antennal scrobe deep, a little narrower than the space 

 between it and the eye margin, its sides perpendicular; face with a smooth 

 6685°— 33 3 



