126 W. H. ASHMEAD. 



Subfomily— PERILAMPINtE. 



PERI1,A]»IPIS Latreille. 



6. Perilainpis oyaneus Brulle. 



7. Perilainpis Ii.yaliiiii$« Say. 



8. Perilainpis triangularis Say. 



I have taken here and identified specimens of all three of the 

 above species. 



In studying the genus I notice the following synonyms : 



Perilampis alexis Walker = P. hyalinus Say. 



" entellus Walker = P. platygaster Say. 



" lepreos Walker ~= P. triangularis Say. 



The following species is undescribed : 



9. Perilampis fulvicornis u. sp. 



% . — Length .08 inch. Head and thorax brown-black with a slight metallic 

 lustre; head at ba.se metallic green and transversely wrinkled; face smooth im- 

 punctured, pubescent ; ocelli dai-k ; eyes brown ; antennae, scape more or less 

 metallic green and grooved beneath ; thorax coarsely, deeply punctate ; scutellum 

 long, highly elevated posteriorly with the tip obtusely i-ounded ; abdomen blue- 

 black, triangular, smooth and shining ; coxae and femora blue-black ; tibia? and 

 tarsi clear yellow ; wings hyaline, veins pale or slightly yellowish. 



Described from one specimen captured at large. 



This s{)ecies approaches nearest to P. hyalinus Say, but is at once 

 distinguished from it by its smaller size, more slender form and by 

 the yellow tibiae and tarsi. 



Subfemily— EURYTOMINaE. 



DEC'ATOMA Spinola. 



10. Decatonia niaeulipes n. sp. 



9. — Length .11 inch. Black, coarsely punctate and covered with short, white 

 pubescence; antennae black, with a dull yellow scape; legs: coxae and femora 

 black, except at tips ; tips with tibiae dull yellow, tibiae with a black blotch in the 

 middle, tarsi pale; wings hyaline, veins pale yellowish. 



Described from one specimen bred April, 1885, from oak gall 

 Dryorhizoxenns florUJanus Ashm. 



It is closely related to Decrdoma liyalipennis Walsh, but the yellow 

 legs and collar in that species readily distinguish it. 



SYSTOIiE Walker. 



11. Systole bracliyptera n. sp. 



9 . — Length .12 inch. Slender, black, with the surface finely shagreened, 

 pubescent ; head more coarsely shagreened than the thorax, viewed from front 



