588 M. W. R. de V. GRAHAM 



angles of pronotal collar not prominent ; anterior transverse carina of 

 collar not strongly raised H. gorgasus (Walker) (p. 588) 



Combined length of pedicellus and flagellum 1 -5 to 1 -6 times the breadth of the 

 head ; funicular segments relatively longer, the first 1 -5 to 2-5 times as long 

 as the pedicellus and two to three times as long as broad, the sixth usually 

 slightly longer than broad ; flagellum proximally often rather less stout 

 than the pedicellus in dorsal view. Vertex often with a distinct ridge. 

 Lateral front angles of pronotum often prominent ; anterior transverse 

 carina of collar often strongly raised ....... 7 



7 (6) Head in dorsal view (cf. Text-fig. 438) 2-15 to 2-35 times as broad as long ; 



vertex without, or with only a weak, transverse ridge. Pronotal collar 

 with lateral front angles not prominent ; anterior transverse carina only 

 moderately raised. First funicular segment 2-5 to 3 times as long as broad, 

 and 2-2 to 2-5 times as long as the pedicellus. Basal cell of fore wing closed 

 below over at most its distal half, and sometimes completely open 



H. varro (Walker) (p. 589) 

 - Head in dorsal view (cf. Text-fig. 437) differently shaped, 2 to 2-15 times as 



broad as long ; vertex with a distinct, sometimes very strong, transverse 

 ridge. Pronotal collar with lateral front angles prominent or dentiform ; 

 anterior transverse carina strongly raised, sometimes with its edge waved or 

 almost dentate. First funicular segment 2 to 2-7 times as long as broad, at 

 most twice as long as the pedicellus. Basal cell of fore wing usually closed 

 below, sometimes closed only in its distal half ...... 8 



8 (7) Marginal vein of fore wing 1 -8 to 2 times as long as the stigmal vein. Anterior 



margin of clypeus tending to be shallowly emarginate 



H.P stylatus sp. n. (p. 589) 

 Marginal vein i-6 to 1-75 times as long as the stigmal vein. Anterior margin 



of clypeus truncate or slightly curved forwards H. stenogaster (Walker) (p. 590) 



Holcaeus calligetus (Walker) 



Pteromalus Calligetus Walker, 1839 : 222, o*. 

 Holcaeus calligetus (Walker) Boucek, 1965c : 8. 



Type material. One male, LECTOTYPE (possibly holotype), bearing a 

 Waterhouse label. 



Britain, Czechoslovakia, Moldavian SSR ; uncommon. 



Biology. Unknown. Imagines June-Aug. (one female captured in April). 



Holcaeus gorgasus (Walker) comb. n. 



Pteromalus Gorgasus Walker, 1839 : 229, £. 



Etroxys {Holcaeus) dichrous Thomson, 1878 : 104, o* $, syn. n. 



Type material. Pteromalus gorgasus Walker. Syntypes, 2 <$. LECTOTYPE, 

 the first specimen, bearing a Waterhouse label. 



Etroxys {Holcaeus) dichrous Thomson. Syntypes, 5 specimens. Lectotype not 

 yet selected. 



Widely distributed in Europe ; fairly common. 



Biology. Unknown. Imagines May- June (occasionally July). 



