702 M. W. R. de V. GRAHAM 



Pteromalus Phyllus Walker, 1839 : 272, $, syn. n. 

 Peridesmia phytonomi Gahan, 1923 : 410, <J $. 

 Peridesmia discus (Walker) Graham, 19566 : 246. 

 Peridesmia discus (Walker) ; Peck, 1963 : 694-695. 

 Other important references are cited by Peck (1963). 



Type material. Pteromalus discus Walker and P. subquadratus Walker. Lecto- 

 types designated by Graham (19566 : 246). 



Pteromalus phyllus Walker. One female, LECTOTYPE, bearing a Waterhouse 

 label. 



Peridesmia phytonomi Gahan. Syntypes, France, Hyeres, in U.S.N.M. (not seen 

 by the writer). Synonymized with discus (Walker) by Graham (19566). 



Britain, France, Italy, Sicily, Moldavian S.S.R. ; U.S.A. (introduced from 

 Europe) . 



Biology. Reared from Hypera postica (Col., Curculionidae). Imagines in spring 

 (May in Britain, earlier in S. Europe) and late summer. 



Peridesmia congrua (Walker) 



(Text-fig. 574) 



Pteromalus congruus Walker, 1836 : 194, $. 



Pteromalus Lucilla Walker, 1839 : 231, <J. 



? Pteromalus Lentulus Walker, 1839 : 232, o*. 



Pteromalus claripennis Forster, 1841 : 30, o*. 



Pteromalus Otos Walker, 1848 : 126, 202, $. 



Isocyrtus (Trichomalus) aquisgranensis Mayr, 1903 : 394-395, 6* ?■ 



Peridesmia claripennis (Forster) Delucchi, 19556 : 148-150, $ $. 



Peridesmia congrua (Walker) Graham, 19566 : 246. 



Type material. For discussion of synonymy and designation of lectotypes for 

 most of the above Walker species, see Graham (19566 : 246). 



Pteromalus lentulus Walker. None found. The description suggests that 

 lentulus was the <$ of Peridesmia congrua. 



Pteromalus claripennis Forster. Type $, Germany, near Aachen, in Natur- 

 historisches Museum, Vienna. 



Isocyrtus (Trichomalus) aquisgranensis Mayr. Syntypes, <$ and $, Germany, 

 Lousberg near Aachen, in Naturhistorisches Museum, Vienna (not seen). The 

 species was synonymized with claripennis (Forster) by Delucchi (19556 : 148). 



Britain, Ireland, Sweden, Germany. 

 Biology. Unknown. Imagines July-Sept. 



SPANIOPUS Walker 



Spaniopus Walker, 1833 : 466. Type-species : 5. dissimilis Walker, by monotypy. 

 Spaniopus Walker ; Forster, 1856 : 52, 56. 



Polycelis Thomson, 1878 : 131, 143 [nee Ehrenberg, 1831]. Type-species : Pteromalus con- 

 spersus Walker, 1835, by designation of Ashmead, 1904 : 386. 



