PTEROMALIDAE OF N.W. EUROPE 543 



? Pteromalus impeditus Walker, 1835a : 187, $. 

 ? Habrocytus obscurus Thomson, 1878 : 113, $. 

 Habrocytus intermedins (Walker) Kurdjumov, 1913 : 20. 



Type material. Eutelus intermedins Walker. Syntypes, 2 $. LECTOTYPE 

 labelled " Walker coll. 1904-120 " and (in Walker's handwriting) " intermedins " ; 

 on the lower surface of the card are the letters " IW " [standing for Isle of Wight, 

 the type-locality]. 



Pteromalus impeditus Walker. Syntypes, 2 $. LECTOTYPE, the second ; 

 Waterhouse label. Probably small intermedins with distorted gaster. 



Habrocytus obscurus Thomson. Syntypes on 36 pins. LECTOTYPE labelled 

 " Bis " [Bastad] and " obscurus Dalm." [sic]. The lectotype differs from that of 

 intermedins only in small details and I believe it may fall within the range of 

 variation of intermedins. 



Britain, Sweden. 



Biology. Reared from stems of Artemisia vulgaris L. (A.F. Amsden) [unpublished 

 information] , perhaps a parasite of Oxyna parietina L. ; I have also found intermedins 

 in some numbers on the above plant during August and September, in southern 

 England. Imagines occur in the field July-Sept. 



Habrocytus albidovenosus (Walker) comb. n. 



Pteromalus albidovenosus Walker, 1874 : 317, $. 



Type material. Syntypes, 2 $. LECTOTYPE, Type Hym. 5.724, labelled 

 " 142 " ; " Amurland. Coll. F. Walker. 1913-71 " ; and (in Walker's handwriting) 

 " Pteromalus albovenosus " [sic]. 



Asia (Amurland) ; only the syntypes known. 

 Biology. Unknown. 



The female of albidovenosus is extremely close to that of intermedins (Walker) 

 but has the body rather more slender, the temples in dorsal view slightly shorter 

 and more convergent, the ocelli smaller, the genae perhaps a little more buccate, 

 and the disc of the mesoscutum rather more coarsely reticulate. It is not possible 

 to decide, without seeing fresh material from the type locality, whether it is a form 

 of intermedins or a distinct species. 



Habrocytus alternipes (Walker) comb. n. 



Pteromalus alternipes Walker, 18726 : 120, $. 



Type material. One female, LECTOTYPE (Type Hym. 5. 712) labelled 

 " Madeira Id. Porto Santo Wollaston " and (in Walker's handwriting) " Pteromalus 

 alternipes ". 



Madeira. 



Biology. Unknown. 



