132 HYMEXOPTERA. 



after Boheman and Thomsou, a task much more easily 

 plamied than carried out. For the Diapriides and Belytides 

 we have some indications in Hahday's generic revision and 

 in Curtis's British Entomology, but very few specific de- 

 scriptions ; and these constitute the whole English literature 

 of those tribes. I had, however, the advantage of Mr. 

 Haliday's advice and of Mr. Walker's collection in aid of 

 my endeavours. As the general subject would be much 

 too long, I must confine myself to these more neglected 

 families. 



An inquiry into the Bethi/lus-grou^ (excluding Epyris), 

 by the aid of Curtis, Forster, and the Entomological Maga- 

 zine, shows that there is evidence, more or less obscure, of 

 the existence of four species in England ; and to these I 

 shall be able here to add a description of a new one taken 

 by myself in Hertfordshire. 



1 . Bethylus cenopterus, Curt., B. E. dccxx, n. 1, " Wings 

 somewhat nerveless." This may be either B. cenopterus, 

 Latr., = Tiphia cenoptera, Pauz., or Ateleopterus Fcersteri, 

 Kirchn., or a new species. The only thing certain is that 

 Curtis has taken in England one of the forms without a 

 stigma. 



2. B. formicarius Curt., lib. cit. n. 5 {nee Panz.) is a 

 second indication of one of these forms, with the " stigma 

 obsolete." ^oi formicarius, Panz., which has a stigma, and 

 seems, according to Audouin's " Pyrale de la Vigne," &c., 

 to be a Perisemus. 



3. Perisemus triarcolatus, Forst., = Episemus variabilis, 

 Thoms., = B.fuscicornis, Walk., Ent. Mag. {7iec Latr., Spin., 

 and Nees\ = B. punctatus, fuscicornis, and fulvicornis. 

 Curt., B. E. /. c. This is the common species of Sweden 

 and England, and the only one, till last summer, which I 

 have ever met with. Perisemus cephalotes, Forst, sent me 



