PTEROMALIDAE OF N.W. EUROPE 571 



Pteromalus incrassatus Ratzeburg. Types presumed destroyed. The species was 

 synonymized with Caenacis grandiclava by Mayr (1903 : 397) and this was accepted 

 by Delucchi (1957 : 157) ; according to Ratzeburg's description it appears to be 

 correct. 



Etroxys (Caenacis) grandiclava Thomson. Syntypes on 13 pins. LECTOTYPE, 

 a female labelled " 17 " and " Esp " [Esperod] ; the lectotype has a Cynipid gall 

 attached to its pin. 



Widely distributed in Europe. 



Biology. Mayr (1903 : 397) recorded several Cynipidae as hosts of this species, 

 under the name Caenacis grandiclava Thomson, mainly species of Andricus and 

 Dryophanta. Askew (1961) gave an account of the biology (as divisa) as observed 

 in Britain. Imagines July-August (reared specimens may emerge earlier). 



Caenacis inflexa (Ratzeburg) 



Pteromalus inflexus Ratzeburg, 1848 : 196, pi. 3, fig. 5, $ $. 

 Caenacis punctulata Thomson, 1878 : 96, q* $• 

 Cecidostiba inflexus (Ratzeburg) Kurdjumov, 1913 : 16. 

 Habrocytus periclisti Callan, 1944 : 91-92, <$ $. 

 Cecidostiba inflexa (Ratzeburg) ; Erdos, 1953 : 228. 

 Caenacis inflexa (Ratzeburg) Delucchi, 1957 : 156-157, £ ?. 

 Caenacis inflexa (Ratzeburg) ; Askew, 1961 : 57-58. 



Type material. Pteromalus inflexus Ratzeburg. Types presumed destroyed. 

 Delucchi (1957 : 157) proposed as neotype the lectotype of Caenacis punctulata 

 Thomson. 



Caenacis punctulata Thomson. Syntypes, 1 $ and 2 <$. LECTOTYPE, the 

 female specimen, labelled " Gl Belf." [Gottland, Belfrage] and " punctulata Ths " ; 

 also labelled by Delucchi " Caenacis punctulata " and " Caenacis inflexa Ratz.". 



Habrocytus periclisti Callan. Holotype, allotype and paratypes in BM(NH), 

 paratypes in U.S.N.M. ; England, various localities in south Buckinghamshire, reared 

 from galls of Rhodites rosae (L.) as a parasite of Periclistus brandtii Ratz., 470 females 

 and 488 males, May- June 1935 (E. McC. Callan). 



Britain, Sweden, Central Europe. 



Biology. Parasitic on the larvae of the Cynipid Periclistus brandtii Ratzeburg in 

 the galls of Diplolepis (= Rhodites) rosae (L.) ; see Callan (1944), Askew (1961). 

 Valkeila (1959 : 181) recorded it from Finland as a parasite of Periclistus caninae 

 (Htg.) in galls of Diplolepis mayri (Schlect.) on Rosa cinnamomea L. Imagines 

 July- August. 



DINOTOIDES Boucek 



Dinotoides Boucek, 1957 : I & 1 - Type-species : D. bicalcaratus Boucek, by monotypy and 



original designation. 

 Dinotoides Boucek ; Peck et al., 1964 : 44. 



This genus is very near to Ablaxia Delucchi but its single species differs from 



