PTEROMALIDAE OF N.W. EUROPE 575 



long as eyes ; the latter separated by i-6 times their length. Base of 

 scutellum only about one quarter the distance which separates the outer 

 edges of the axillae. Antennae with pedicellus relatively a little broader ; 

 funicle proximally rather stouter. Stigmal vein forming a rather less 

 acute angle with the postmarginal vein . crassicornis (Thomson) (p. 579) 



Propodeum (medially) about two thirds as long as the scutellum. Antennal 

 scape reaching about to middle of median ocellus, its length distinctly 

 greater than the transverse diameter of an eye. Temples, in dorsal view of 

 head virtually half as long as the eyes ; the latter separated by 1-4 to 1-5 

 times their length. Base of scutellum a little broader than in the above. 

 Antennae with pedicellus rather more slender ; funicle proximally rather 

 less stout. Stigmal vein forming a rather more acute angle (about 35 ) 

 with the postmarginal vein ..... temporalis sp. n. (p. 577) 



Key to some Males 



Antenna with anelli subquadrate or only slightly transverse, their combined 

 length as great as that of the first funicular segment ; flageHum subclavate ; 

 combined length of pedicellus and flagellum somewhat less than breadth of 

 head ; clava obtuse apically, barely twice as long as broad ; flagellum 

 usually extensively testaceous. Fore wing with marginal vein only 1 -25 

 to 1 -3 times as long as the stigmal vein, the latter forming an acute angle 

 (about 35 ) with the postmarginal vein, which is distinctly longer than the 

 marginal ........ anaxenor (Walker) (p. 576) 



Antenna with anelli strongly transverse, their combined length much less than 

 that of the first funicular segment ; flagellum filiform ; combined length of 

 pedicellus and flagellum variable, often greater than breadth of head ; clava 

 pointed apically, 2-5 to 3 times as long as broad ; flagellum fuscous to black. 

 Fore wing with marginal vein 1-4 to 1-7 times as long as the stigmal vein, 

 the latter usually forming a relatively less acute angle with the postmarginal 

 vein, which is not or hardly longer than the marginal .... 2 



(1) Fore wing with postmarginal vein distinctly shorter than the marginal vein. 



Propodeum with costula usually weak, slightly angulate forwards in the 

 middle. Antenna with combined length of pedicellus and flagellum 1 -25 to 

 1-3 times breadth of head ; first funicular segment at least slightly longer 

 than the pedicellus, sixth slightly longer than broad. Head and thorax 

 greenish ...... Apelioma restrictum Graham (p. 583) 



Fore wing with postmarginal vein as long, or virtually as long, as the marginal 

 vein. Propodeum with costula usually distinct, forming a straight or 

 virtually straight transverse ridge. ....... 3 



(2) Head in dorsal view (cf . Text-fig. 425) with temples only moderately convergent, 



more than one third as long as the eyes. Antennal flagellum slightly 

 stouter than the pedicellus, even when the latter is seen in dorsal view. 

 Fore wing with stigma moderate-sized, separated by only 1 -5 to 1 -6 times its 

 height from the costal edge of the wing. First funicular segment distinctly 

 longer than the pedicellus ; combined length of pedicellus and flagellum 

 about i-2 times breadth of head. Larger species, 2-4 to 2-7 mm. Pro- 

 podeum only about half as long as the scutellum ? temporalis sp. n. or 



crassicornis (Thomson) (pp. 577, 579) 

 Head in dorsal view (cf. Text-fig. 427) with temples converging strongly, less 

 than one-third as long as the eyes. Antennal flagellum proximally at most 

 as stout as the pedicellus in dorsal view. Fore wing with stigma usually 

 relatively smaller. First funicular segment sometimes not longer than the 

 pedicellus. Smaller species, i-6 to 2 mm. ...... 4 



