668 M. W. R. de V. GRAHAM 



Type material. Syntypes (holotype and allotype) in Museum Nationale d'Histoire 

 Naturelle, Paris (von Rosen, 1958 : 218). 



Western and Southern Europe (not found in Britain). 



Biology. Reared from Craneiobia corni (Giraud) by Giraud and others (see 

 von Rosen, 1958 : 218). 



Mesopolobus flaviclavatus (Ferriere) 



Amblymerus flaviclavatus Ferriere, 1952 : 168-169, fig- 2 > ?■ 

 Mesopolobus flaviclavatus (Ferriere) v. Rosen, 1958 : 218, $. 

 Mesopolobus flaviclavatus (Ferriere); v. Rosen, i960 : 25, $. 



I have not seen the types of this species ; the female has been redescribed from a 

 paratype by von Rosen (i960). 



Italy. 



Biology. Unknown. 



Mesopolobus mediterraneus (Mayr) 

 (Text-fig. 535) 



Eutelus mediterraneus Mayr, 1903 : 388, 389, £ $. 



Mesopolobus mediterraneus (Mayr) v. Rosen, 1958 : 227-228, o* $• 



Mesopolobus mediterraneus (Mayr) ; v. Rosen, 1960a : 31-32, o* ?• 



Type material. Syntypes in Naturhistorisches Museum, Vienna ; lectotype $ 

 designated by von Rosen (1961 : 31). 



The species was redescribed by von Rosen (1958 : 227-228) and notes on its 

 variation were published by the same author (1960a : 31-32). The female of 

 mediterraneus is very difficult to distinguish from that of diffinis (Walker), though 

 their respective males are very different. 



Britain, Sweden, Central and Southern Europe, Turkey. 



Biology. A polyphagous species ; recorded hosts (see von Rosen, 1958 : 227-228) 

 include species of various genera of Cecidomyiidae (Dipt.), Tortricidae, Hypono- 

 meutidae, Pyralidae and Pieridae (Lep.), and Apanteles glomeratus (L.) (Hym.). 

 Probably it is often hyperparasitic (e.g., on the larvae of Lepidoptera). Imagines 

 June-July. 



Mesopolobus heterotomus (Thomson) 



Eutelus heterotomus Thomson, 1878 : 74, o* ?• 



Mesopolobus heterotomus (Thomson) v. Rosen, 1958 : 228-229, o* $• 



Mesopolobus heterotomus (Thomson) ; v. Rosen, 1960a : 26, o* $. 



Type material. Syntypes, 5 specimens. LECTOTYPE, a female labelled 

 " Hbg " [Halsingborg] and " heterotomus Ths ", also bearing Dr. A. Jansson's 

 lectotype label. 



