788 M. W. R. de V. GRAHAM 



Males of ferrierei seem to differ from those of pirus only in having the body more 

 brightly metallic and the antennae and legs paler. 



Dirhicnus pirus (Walker) comb. n. 



(Text-fig. 646) 



Pteromalus Pirus Walker, 1839 : 219, q\ 



Pteromalus Toxicrate Walker, 1839 : 226, q\ syn. n. 



Pteromalus Sisenna Walker, 1839 : 227, " <$ " [recte $], syn. n. 



Pteromalus Gonatas Walker, 1839 : 231, " <J " [recte $], syn. n. 



Pteromalus separatus Forster, 1841 : 14, <J, syn. n. 



Pteromalus insidiator Forster, 1841 : 25, <?, syn. n. 



Pteromalus Bubaris Walker, 1845 : 261, $, syn. n. 



Pteromalus Nestocles Walker, 1845 : 261, o* ?. syn. n. 



Pteromalus Cercides Walker, 1845 : 262, <$ $. syn. n. 



Pteromalus Gallonius Walker, 1848 : 125, 193, q\ syn .n. 



Metopon (Dirhicnus) subcoeruleus Thomson, 1878 : 170, o* $. syn. n. 



Type material (all the Walker lectotypes bear Waterhouse labels). 



Pteromalus pirus Walker. Syntypes, 4 <$; LECTOTYPE, the second specimen. 



Pteromalus toxicrate Walker. Syntypes, 3$ ; LECTOTYPE, the second specimen. 



Pteromalus sisenna Walker. Syntypes, 2 $, which are not congeneric. LECTO- 

 TYPE, the second specimen. 



Pteromalus gonatas Walker. One female, now designated LECTOTYPE ; 

 Walker described it as male, but his description shows that he had a female before 

 him. 



Pteromalus separatus Forster. Syntypes, 2 <$ in Forster coll. ; lectotype designated 

 by Delucchi (1958a : 55) who placed separatus and subcoeruleus Thomson in 

 synonymy. 



Pteromalus insidiator Forster. Type $ recognized by Delucchi (1958a : 55) who 

 stated the species to be the same as separatus Forster. 



Pteromalus bubaris Walker. One female, now designated LECTOTYPE. 



Pteromalus nestocles Walker. Syntypes, 4 $ ; LECTOTYPE, the third specimen. 



Pteromalus cercides Walker. Syntypes, 2 $ ; LECTOTYPE, the second specimen. 



Pteromalus gallonius Walker. One male, now designated LECTOTYPE. 



Metopon (Dirhicnus) subcoeruleus Thomson. Syntypes, a long series mounted on 

 31 pins. LECTOTYPE, a female labelled " Lund " and, in Thomson's handwriting, 

 " subcoerule=us Ths " ; the specimen also bears A. Jansson's lectotype label. 



Britain, Ireland, Sweden, Germany, Czechoslovakia ; probably more widely 

 distributed in Europe. 



Biology. Unknown (but see host record for the following species, ferrierei, which 

 may prove to be identical with pirus). Imagines June-Sept. 



Dirhicnus ferrierei (Hedqvist) comb. n. 

 (Text-fig. 647) 

 Tomicobia ferrierei Heqvist, 1959 : 178-179, <J $. 



