PTEROMALIDAE OF N.W. EUROPE 123 



Gastr acanthus pulcherrimus Westwood 



Gash ■acanthus pulcherrimus Westwood, 1833 : 121, $. 



Pteromalus pulcherrimus (Westwood) Walker, 1836a : 9-10, $. 



Pteromalus macromerus Walker, 1836a : 11, 6*- 



Trigonoderus elegans Walker, 1836a : 21, <$. 



Cleonymus transversus Forster, 1841 : 33, q\ 



Photismus nubilosus Thomson, 1878 : 15-16, o" $. 



Gastracanthus pulcherrimus Westwood ; Kerrich & Graham, 1957 : 281-283, 284, pi- 2, o" $• 



Gastracanthus pulcherrimus Westwood ; Ferriere & Kerrich, 1958 : 29. 



Type material. The types of pulcherrimus Westwood appear to be lost ; for 

 designation of lectotypes for the other species mentioned in the above synonymy, 

 see Kerrich & Graham (1957 : 281-282). The same authors were responsible for 

 the synonymy. 



Britain, Sweden, Finland, Germany, Czechoslovakia, Moldavian S.S.R. 



Biology. Otten (1940 : 187-188) stated that he had reared a female of Photismus 

 nubilosus in Germany from an imago of Byrrhus fasciatus (Forster) (Col., Byrrhidae) 

 found 20.viii.1939, under stones ; but I do not know if the parasite was correctly 

 identified. Females of this species may often be found on the foliage of hazel 

 (Corylus avellana L.). Imagines chiefly May-June and Aug. -Sept. (one record for 

 July). 



ERDOESIA Boucek 



Erdoesia Boucek, 1957a : 157. Type-species : E. tessellata Boucek, by original designation. 

 Erdoesia Boucek ; Peck et al., 1964 : 35. 



Erdoesia tessellata Boucek 



Erdoesia tessellata Boucek, 1957a : 159, §. 



Type material. Holotype $, Bohemia, Hradec Kralove, Nov. 1916 (/. Sekera), 

 in Narodni Museum, Prague (Cat. No. 3014). 



Germany, Czechoslovakia, Hungary. 



Biology. Unknown. Imagines in June, Aug. and November. 



SPHEGIGASTERINI 



Key to European Genera 



In all the genera, both mandibles have four teeth. 

 1 Pronotal collar either not margined or, if slightly so, then the anterior margin 



of the clypeus is bidentate and the second gastral (fourth abdominal) tergite 

 (Text-figs. 96, 100) is large, in the female as long as or longer than the basal 

 tergite. 



Pronotal collar often with front edge waved or with teeth ... 2 



