528 M. W. R. de V. GRAHAM 



Pteromalus chrysos Walker. Syntypes, 2 $. LECTOTYPE, the first specimen 

 (the second is var. (3). 



Pteromalus incusus Walker. Syntypes, 1 £, 2 $. LECTOTYPE, the first 

 female specimen. 



Pteromalus zipaetes Walker. Syntypes, 2 $. LECTOTYPE, the second specimen. 



Pteromalus telon Walker. One male, LECTOTYPE (possibly holotype). 



Pteromalus eucerus Ratzeburg. Syntypes, Germany, 2 <$ and 1 $ from cocoons 

 of Microgaster on Bombyx salicis, presumed destroyed. The types were examined 

 by Often (1942a : 122) and the species was redescribed by him from material 

 compared with them ; it is clear from his redescription and figures that his eucerus 

 is the same as chrysos (Walker). Actually Ratzeburg's original description of 

 eucerus suggests rather that it was the same as semotus (Walker), and the material 

 identified as such in some collections, e.g., in BM(NH), is mainly semotus. It is 

 perhaps best, however, to accept Otten's identification of eucerus, which agrees with 

 that of Ferriere (1952a). 



Habrocytus acutigena Thomson. Syntypes, 23 specimens. LECTOTYPE, a 

 female labelled " Hbg " [Halsingborg] and " acutigena Ths ". 



Habrocytus distinguendus Masi. Holotype $, Italy, Umbria, Bevagna, reared 

 from cocoon of Angitia armillata, in Museo Civico di Storia Naturale, Genoa (not 

 seen). The description and host suggests that it is almost certainly the same as 

 chrysos (Walker). 



Habrocytus hyponomeutae Masi. Syntypes, 5 $, Italy, Umbria, Bevagna, reared 

 from larva of Hyponomeuta malinellus, in Museo Civico di Storia Naturale, Genoa 

 (not seen). From the description and host it is very probably the same as chrysos. 



Habrocytus metallifemur Bukovskij. Location of syntypes, Russia, Crimea, 

 reared from Tortrix viridana L., unknown to me. The combination of characters 

 mentioned in Bukovskij 's description, particularly the striation of the clypeus 

 which is said to extend nearly to the eyes, and the host, suggest to me that 

 metallifemur may well be the same as chrysos (Walker). 



Widely distributed in Europe. 



Biology. Reared in Sweden as a hyperparasite of Hyponomeuta padellus (L.) 

 through Angitia [=Diadegma] armillata (Grav.) (S. Johanssen) ; from Tortrix 

 viridana L. by the same collector ; in England from Pieris rapae L. (possibly as a 

 hyperparasite) (G. D. H. Carpenter). Also recorded as a parasite of Thaumatopoea 

 pityocampa in Italy (Secretariat, etc., 1966 : 119, 129). Imagines occur in the 

 field from May until October (Britain). Walker (1848a : yy) recorded Pteromalus 

 zipaetes as a parasite of " Bruchus in Vicia sepium " but the parasite involved seems 

 more likely to have been Habrocytus semotus. 



The DISPAR-Groxjp 



Habrocytus grandis (Walker) 



(Text-fig. 384) 



Pteromalus grandis Walker, 1835 : 487, $. 

 Pteromalus latipennis Walker, 1835a : 96, $, syn. n. 



