PTEROMALIDAE OF N.W. EUROPE 407 



Left mandible with three teeth, right mandible with four. Postmarginal 

 vein as long as, or shorter than, the marginal vein 



HABROCYTUS Thomson (p. 494) 

 SCEPTROTHELYS Graham (p. 482) 

 x 53 (94) Fore wing with speculum absent or rudimentary ; basal cell wholly pilose . 154 

 Fore wing with a moderate-sized or large speculum ; basal cell partly to 



entirely bare . . . . . . . . . . .155 



*54 ( r 53) Antennae with first funicular segment longer than broad, longer than the 

 pedicellus ; the following segments subquadrate to slightly longer than 

 broad ; sensilla numerous, in three to four rows on all the funicular 

 segments PICROSCYTOIDES Masi (p. 441) 



- Antennae with funicular segments slightly broader than long, the first seg- 



ment shorter than the pedicellus, and slightly shorter than the second 

 segment; sensilla sparse, in one row on all the funicular segments 



STENOSELMA Delucchi (p. 437) 

 J 55 ( r 53) Propodeum with a large, subglobose, quite strongly reticulate nucha which 

 projects well beyond the bases of the hind coxae. Mesepisternum wholly 

 reticulate, or with at most a narrow vertical smooth line below the base of 

 the hind wing ........... 156 



- Propodeum with at most a small, weakly-reticulate nucha which projects 



only slightly beyond the bases of the hind coxae ; most often with nucha 

 undeveloped and represented only by a transverse lunate strip. Mese- 

 pisternum most often with a shiny, weakly sculptured or smooth area below 

 the base of the hind wing ......... 157 



x 56 (155) Anterior margin of clypeus deeply emarginate and bidentate. Fore wing 

 with stigma rather large, separated by somewhat less than twice its height 

 from the costal edge of the wing ; costal cell very broad, at most five times 

 as long as broad, its lower surface with a very broad longitudinal band of 

 densely-aggregated hairs .... OEDA TJLE Waterston (p 435) 



- Anterior margin of clypeus shallowly emarginate. Fore wing with stigma 



small, separated by at least twice its height from the costal edge of the 

 wing ; costal cell less broad, its lower surface with sparser hairs 



DINARMUS Thomson (p. 434) 

 *57 ( I 5.">) Propodeum with a convex, delicately reticulate nucha which projects slightly 

 beyond the bases of the hind coxae, and is not very sharply-defined 

 anteriorly .... ANISOPTEROMALUS Ruschka (p. 433) 



- Propodeal nucha represented only by a transverse lunate strip which is 



sharply-defined anteriorly, and is transversely aciculate or smooth . . 158 



1 5^ (*57) Anterior margin of clypeus deeply emarginate, virtually incised. Pronotal 



collar usually sharply margined . . OXYSYCHUS Delucchi (p. 432) 



- Anterior margin of clypeus shallowly emarginate. Pronotal collar not or 



hardly margined C YR TOP TYX Delucchi (p. 430) 



159 (24) Hind femora strongly swollen, at most slightly more than twice as long as 



broad ; postspiracular sclerite very small, visible only as a minute triangle 

 in front of the tegula ; pronotum almost as wide as the mesoscutum ; 

 fore wing with two fuscous clouds . . DINARMOIDES Masi (p. 436) 



- Hind femora not, or only slightly, swollen ; postspiracular sclerite larger, 



extending well ventrad ; pronotum usually less wide ; fore wing immacu- 

 late or with at most one fuscous cloud . . . . . .160 



160 (159) Fore wing without a speculum ; marginal vein about three times as long as 



the stigmal vein. Eyes conspicuously hairy RAKOSINA Boucek (p. 781) 



Fore wing with a speculum ; marginal vein rarely so long in proportion to 



the stigmal vein. Eyes rarely conspicuously pilose .... 161 



