118 W. H. ASHMEAD. 



DESCKIPTIOXS OF WEW PARASITIC HYMEXOPTKKA. 



BY WILLIAM H. ASHMEAD. 



(Paper No. 1.) 



' It is my intention, in a series of papers with the above title, to 

 describe tlie unnamed material in the different families of the para- 

 sitic H}'menoptera, which has accumulated in my collection during 

 the past fifteen years or more, and then follow with synopses of the 

 different families, genera and species. 



No doubt some objection w 11 be made to thus ])ublishing so many 

 isolated descriptions, but it seems to me, considering the imuiense 

 number of species still undescribed in our collections and the new 

 ones constantly turning up, that such a course is justifiable, as syn- 

 opses published to-day, in most of the groups, are valueless in a few 

 months. 



The present paper contains the descriptions of many of the new 

 species reared by Prof A. D. Hopkins, of the West Virginia Agri- 

 cultural Experiment Station, at Morgantown, who has done so much 

 tov.'ards making known the parasites of our destructive forest insects 

 in the past three or four years, and whose work is of inestimable 

 value. 



Subfamily Pekilampin.e. 



EUPERIL,Ai?IFUS Walker. 



187L — Notes on Cbalcididge, pt. iv, p. 67. 



(Type P. (jlorlosus Walk.) 



Eiipvrilaiiipiis opacus sp. n. 



J. — Length 4 mm. Black, opaque, with coarse, umbilicate piiuctures; tarsi 

 brown ; head as wide as the thorax, emargiiiate, the frons with a deep antenual 

 furrow, the face sliorter tliaii wide: antennae. 13-jointed, short, not longer than 

 the width of head, the flagellar joints all short, much wider than long. Pro- 

 notum quadrate, narrowed anteriorly into a slight neck; mesouotum broader 

 than long, the parapsidal furrows indistinct, obliterated posteriorly: scutelluiu 

 produced behind into a spine like process that projects over the luetanotuni ; 

 metathorax short, rugulose ; wings hyaline, the nervures as in Perilampun, biown- 

 black ; tegulie large, black, punctate. Abdomen oblong-oval, as long as the 

 thoi'ax, subsessile, coarsely, reticulately punctate, the second segment occupying 

 nearly the whole surface. 



Hub. — Denver, Col. Type in coll. Amer. Entonudogical Society. 

 Described from a single s])ecimen taken in June. 



