PTEROMALIDAE OF N.W. EUROPE 367 



- Gaster ovate to subcircular, not or hardly longer than the thorax ; last 



tergite at most very slightly longer than its basal breadth, but often trans- 

 verse ............ 77 



77 (76) Antennal flagellum (Text-fig. 354) long, cylindrical, with all funicular seg- 



ments, except sometimes the sixth, longer than broad, each of these seg- 

 ments with at least two rows of sensilla, often three ; marginal vein of 

 fore wing (Text-figs. 351, 353) at most 1 -5 times as long as the stigmal vein, 

 basal cell pilose at least distally. Gaster at most slightly longer than broad, 

 bluntly pointed apically with the ovipositor sheaths projecting very 

 slightly (Text-fig. 352). Mandibles similar ; both with four acute teeth, 

 of which the third and fourth are smaller and approximated 



CAPELLIA Delucchi (p. 475) 



- Antennal flagellum shorter, usually more or less clavate, with funicular 



segments not or hardly longer than broad, each of them with only one row 

 of sensilla ; marginal vein of fore wing 1 -7 to 2 times as long as the stigmal 

 vein ; basal cell often bare except for a row of hairs in the basal vein. 

 Mandibles either not both four-dentate ; or if so, then their third and 

 fourth teeth are not approximated ....... 78 



78 (77) Anterior margin of clypeus produced, and distinctly emarginate medially ; 



propodeal spiracles touching the metanotum and partly hidden beneath 

 its hind margin ; medially the propodeum is produced well beyond the 

 bases of the hind coxae, and has a convex nucha which is reticulate in 

 front but has a more weakly sculptured lunate posterior strip ; gaster 

 ovate, acutely pointed apically, the last tergite about as long as its basal 

 breadth ; ovipositor sheaths projecting slightly VRESTOVIA Boucek (p. 828) 

 Anterior margin of clypeus hardly produced, truncate or very broadly and 

 shallowly emarginate (Text-fig. 457) ; propodeal spiracles separated by 

 about their own length from hind margin of metanotum ; propodeum 

 medially produced only slightly beyond bases of hind coxae, nucha 

 represented only by a transversely lunate, weakly sculptured strip ; 

 gaster oval or elliptic, obtuse apically, the last tergite very short and 

 transverse ; ovipositor sheaths concealed (Text-figs. 459, 461) 



KALEVA Graham (p. 596) 



79 (73) Gaster (Text-figs. 436, 451) with last tergite in dorsal view, not counting its 



extreme basal portion, linear or sublinear, much longer than broad . . 80 



- Gaster with last tergite in dorsal view, if longer than broad, triangular. . 81 



80 (79) Vertex (Text-figs. 437, 438, 440) with a transverse ridge behind the ocelli. 



Antennal clava (Text-fig. 439) as long as the three preceding funicular 

 segments together, ventrally with a long band of micropilosity, the clava 

 seen in profile having its sutures oblique . HOLCAEUS Thomson (p. 584) 

 Vertex (Text-fig. 451) without a ridge behind the ocelli. Antennal clava 

 shorter than the three preceding funicular segments together, with only a 

 small area of micropilosity on its third segment, in profile having its sutures 

 not oblique EVLONCHETRON Graham (p. 599) 



8 1 (79) The edge of the gena, bordering the oral fossa, is raised to form a flange which 



is often tuberculate medially (Text-figs. 572, 573) ; genae projecting slightly 

 to very distinctly below level of anterior margin of clypeus, the latter 

 slightly produced forwards in the middle and occasionally with a small 

 median tooth ; propodeum with a large reticulate nucha 



ROHATINA Boucek (p. 700) 



- Edge of the gena not thus flanged ; or with at most a very weak flange, in 



which case the genae do not project ventrad of the clypeal margin, whilst 



the latter is emarginate medially. ....... 82 



