828 M. W. R. de V. GRAHAM 



DORCATOMOPHAGA Kryger 



Dorcatomophaga Kryger, 1951 : 103-104. Type-species : D. westi Kryger, by monotypy. 

 Dorcatomophaga Kryger ; Peck et al., 1964 : 35. 



Dorcatomophaga westi Kryger 



Dorcatomophaga westi Kryger, 1951 : 105-106, $ $. 



Type material. Syntypes (not seen) presumably in Universitetets Zoologiske 

 Museum, Copenhagen. 



The antennae seem to be unusually variable in this species. Kryger (1951, fig. 8) 

 showed the antenna of a normal female as having the formula 11263, Dut ne a l s0 

 figured an abnormal female in which the first and second segments of the funicle are 

 coalesced. In his generic diagnosis (1951 : 104) he described the antennae of both 

 sexes as having 2 anelli and 6 funicular segments ; but he remarked that the antennae 

 are variable and stated that he had males and one female in which the antennae had 

 only 5 funicular segments. I have myself seen a female in which the antennae have 

 3 anelli and 5 funicular segments. 



Denmark, Sweden. 



Biology. " Parasitic in larvae of Dorcatoma in old oak-trees " (Kryger, 1951 : 

 106). Kryger (ibid. : 103) stated that he had reared the parasite from wood taken 

 from an old oak infested with larvae of Dorcatoma and that no other insects except 

 the beetle and the Chalcidoid were reared, hence the latter must be parasitic on the 

 Dorcatoma. 



V RES TO VI A Boucek 



Vrestovia Boucek, 1961 : 79. Type-species : V. clypealis Boudek, by monotypy and original 

 designation. 



This genus is close to Metastenus Walker but differs in having the marginal vein 

 not thickened, the left mandible with 3 teeth and the right mandible with 4 (both 

 mandibles with 4 teeth in Metastenus) ; and, at least in the female, in having 2 

 instead of 3 anelli in the antennae. So far only one species is known. 



Vrestovia fidenas (Walker) 



Gastrancistrus Fidenas Walker, 1848 : 105, 157, <J. 

 Vrestovia clypealis Boucek, 1961 : 79, $ $. 

 Vrestovia fidenas (Walker) Boucek, 19656 : 548. 



Type material. Gastrancistrus fidenas Walker. One male, LECTOTYPE (but 

 probably holotype), bearing a Waterhouse label. 



Vrestovia clypealis Boucek. Holotype $, eastern Bohemia, Velky Vfestov, 

 8.VH.1957 (Boucek), in Narodni Museum, Prague (Cat. no. 2971). The species was 

 synonymized with fidenas (Walker) by Boucek (19656 : 548). 



Britain, Czechoslovakia, Moldavian S.S.R. 

 Biology. Unknown. Imagines July- August. 



