368 MONOGRAPHIA CHALCIDUM. 



spinis duabus armatae ; tarsi articulis 5, V\ elongatus, sequentes 



longitudine decrescentes, 5"'. praecedenti crassior et longior : alas 



anticae nervus solitus ramulum stigmaticalem emittens elongatum, 



arcuatum. 



Cratomus may be distinguished from Perilampus (to which 



it is closely allied) ; and from the other Torymidae, by the long 



and curved stigmal branch of the nervure of the wing : the 



only Pentamera which resemble it in this character, are the 



Cleonymidai and some of the Eupelmidge. 



Sp. 1. Cra. megacephalus. Mas. Cyaneo-niger, antemns 

 pedihusque fuscis, tihiis 4 anticis tarsisque Jlavis, alls 

 anticis fusco maculatis. 



Cynips megacephala Fabr. Ent. Syst. 2. 103. 



17. 



Diplolepis megacephala Fabr. Syst. Piezat. 149. 



21. 2. 



Perilampus (Cratomus) megacephalus. Dalmaji, Kongl. Veten. 



Acad. Handl. 1820. 



Caratomus megacephalus. . . . Dalman^ Kongl. Veten. 



Acad. Handl. 1822. 



Caput thorace latius, punctatum, antice profunde excavatum, utrinque 

 bituberculatum : oculi ocellique nigri : antennae breves, fuscae, 

 versus medium obscuriores : thorax et petiolus punctati : abdo- 

 men nitidum, glabrura : coxae nigro-fuscae ; trochanteres flavi ; 

 femora fusca ; tarsi flavi, articulus l"^ subtus productus, 5"% 

 fuscus : alae hyalinas ; anticae prope medium fuscescentes ; nervi 

 pallide fusci ; stigma parvum, concolor. (Alarum longitudo, 

 2 lin.) 

 Taken at Ripley, July 1827, and in Epping Forest, by 



J. F. Stephens, Esq. 



July; on palings; near London. 



Fabricius says that it inhabits decayed wood. 



Sp. 2. " Cratomus nigripes. Ater, pedibus toto nigris, 



alls hyalinis.'" 



" Taken in my own garden, at the Hermitage, South Lam- 

 beth. J. F. Stephens." 



The description and name of this new species were obligingly 



sent to me by Mr. Stephens. 



Genus Epimacrus," Walker. 



Fern. — Caput sat magnum, thorace latius : oculi mediocres, laterales : 

 ocelli supra verticem in triangulo dispositi : antennae fronte infe- 



" 'Etti ante, naapo^ lonffus. 



