NEW HYMENOPTERA FROM NORTH AMERICA. 



By A. B. Gahan, 



Of the Bureau of Entomology, United States Department of Agriculture. 



With a single exception, the following Hymenoptera were bred by 

 the Cereal and Forage Insect Division of the United States Depart- 

 ment of Agriculture, Bureau of Entomology. The single exception 

 is that of an interesting new genus and species of Proctotrypoidea 

 parasitic in the eggs of the Chinch Bug and reared by J. W. McCul- 

 loch, of the Kansas Agricultural Experiment Station. 



Superfamily VESPOIDEA. 



FamUy ELIID^. 



Genus ELIS Fabrieius. 



The following described species runs to the genus Plesia in Doctor 

 Ashmead's classification of the Myzinidse.^ According to Mr. Rohwer, 

 Plesia Jurine is a synonym of Elis Fabrieius. ^ 



ELIS ATRIVENTRIS, new species. 



FeTuale. — Length 20 mm. Agrees with the description of (Meria) 

 Elis coUaris Say, except as foUows: The two yellow spots above the 

 base of the antennae are confluent with the frontal orbital lines; the 

 yellow band on the posterior margin of the prothorax is not inter- 

 rupted; there is a large yellow spot between the notauli on the meso- 

 notum and a smaller one on the scutellum, the venter is immaculate 

 black. 



Head, prothorax, mesonotum, mesoscutellum, and mesopleurge with 

 large deep punctures; propleurae and metapleurse lineated, the latter 

 more coarsely so; propodeum without punctures or rugae of any 

 kind. 



Male. — DiflFers from the female in the usual sexual characters, and 

 also as follows: The clypeus is entirely yellow; two yellow spots at 

 base of antennse are not confluent with the frontal orbital lines; line 



iCan. Ent., vol. 35, 1903, p. 5. 2 Proc. U. S. Nat. Mus., vol. 40, p. 551. 



Proceedings U. S. National Museum, Vol. 46— No. 2035. 



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