144 M - W. R. de V. GRAHAM 



Biology. Originally reared from Brachydeutera argentata (Walk.) (Dipt., Ephy- 

 dridae). This species is mentioned only because of its close affinity with britteni]. 



POLYCYSTUS Westwood 



Polycystus Westwood, 1839 : 68. Type-species : P. mattheivsii Westwood, by monotypy and 

 original designation. 



Polycystus Westwood 

 Polycystus Westwood 

 Polycystus Westwood 

 Polycystus Westwood 

 Polycystus Westwood 

 Polycystus Westwood 



Thomson, 1878 : 18, 26. 

 Ashmead, 1904 ; 331, 332. 

 Schmiedeknecht, 1909 : 375, 376, 380-381. 

 Graham, 19566 : 261. 

 Peck et al., 1964 : 38. 

 Askew, 1965 : 183-184. 



As Askew (1965 : 184) remarked, Polycystus is very close to Cyrtogaster, of which it 

 may eventually be regarded as a subgenus. Until the Pteromalid fauna has been 

 surveyed over a much wider region, however, I prefer to keep the two as separate 

 genera. 



Polycystus clavicornis (Walker) 



Cyrtogaster clavicornis Walker, 1833 : 383, $. 

 Cyrtogaster obscura Walker, 1833 : 383, $. 

 Polycystus Matthewsii Westwood, 1839 : 68, <£. 

 Polycystus scapularis Thomson, 1878 : 26, £ $. 

 Polycystus clavicornis (Walker) Graham, 19566 : 261. 

 Polycystus clavicornis (Walker); Askew, 1965 : 183-184, <J ?• 



Type material. Lectotypes of Cyrtogaster clavicornis Walker, C. obscura Walker, 

 and Polycystus matthewsii designated by Graham (19566 : 261). 



Polycystus scapularis Thomson. Syntypes on 19 pins. LECTOTYPE, a female 

 labelled " Ld 8/6 " ; " $ "; and " scapularis Ths ". The species was synonymized 

 with clavicornis (Walker) by Burghele (1959 : 124) on the authority of Boucek. 



Britain, Ireland, Sweden, Denmark, Czechoslovakia, Rumania, Moldavian 

 S.S.R. Locally common ; in damp meadows and marshy places. 



Biology. Reared in Rumania by Burghele, from puparia of Hydropota (Hydrellia) 

 griseola (Fin.) ; from Hydropota (Hydrellia) nasturtii (Collin) in Algeria (M. Delassus) 

 (see Askew, 1959). Henriksen (1919 : 164-165) cited Ephydridae and Lonchoptera 

 as hosts of Polycystus scapularis and stated that a single parasite was reared from 

 each parastitized host puparium. Imagines May-July. 



TOXEUMA Walker 



Toxeuma Walker, 1833 : 371, 378 : Type-species. T. fuscicornis Walker, by designation of 



Westwood, 1839 : 68. 

 Toxeuma Walker; Forster, 1856 : 53, 58. 

 Toxeuma Walker; Thomson, 1876a : 220, 243-245. 

 Toxeuma Walker; Ashmead, 1904 : 278. 



