I'l EROMALIDAE OF N.W. EUROPE 715 



nearly or quite as long as the pedicellus . . . . . . 16 



10 (9) Fore wing with basal vein bare or virtually so. Gaster subcircular or shortly 



oval, usually with a reddish transverse fascia, occasionally only a spot. 

 Antennal flagellum brownish .... rufinus (Walker) (p. 734) 



Fore wing with basal vein pilose. Gaster either immaculate, or else oblong 



with a pale spot ........... 11 



11 (10) Gaster short and broad, shortly oval to subcircular, immaculate ... 12 



Gaster more oblong in shape with a yellowish spot or a transverse fascia . 15 



12 (11) Antennal scape slightly shorter than an eye and not reaching the level of the 



vertex. Marginal vein of fore wing about 1-5 times as long as the stigmal 

 vein. Basal tergite of gaster with few hairs at the sides ; propodeal 

 callus not very thickly pilose. 



Antennal flagellum brown, or testaceous with darker incisures between 

 the segments . . . . . . . ? apertus (Walker) (p. 730) 



Antennal scape virtually or quite as long as an eye and reaching the level of 

 the vertex, except in lepidus, in which the marginal vein is" hardly longer 

 than the stigmal vein, the sides of the basal tergite of the gaster have 

 several hairs, and the propodeal callus is thickly pilose . . . . 13 



13 (12) Antennal scape somewhat shorter than an eye and not reaching the level of 



the vertex ; flagellum brown or fuscous. Fore wing with distal third or 

 so of basal cell pilose ; marginal vein hardly longer than the stigmal vein 



lepidus (Forster) (p. 734) 

 Antennal scape virtually or quite as long as an eye and reaching the level of 

 the vertex ; flagellum partly testaceous or yellow. Fore wing with basal 

 cell often bare, if so extensively pilose, then marginal vein rather longer 

 relative to the stigmal vein ......... 14 



14 (13) Marginal vein 1-15-1 35 times as long as the stigmal vein. Antenna with 



funicle testaceous, sometimes brownish proximally ; clava brown, except 

 sometimes apically. Mandibles with a strong longitudinal crest in their 

 basal half ........ pexatus (Walker) (p. 734) 



Marginal vein about 1-5 times as long as the stigmal vein. Antennal flagellum 

 annulated, fuscous with the anelli, first funicular segment and funicular 

 segments 4-6 at least beneath, yellowish. Mandibles with a small tubercle 

 near their bases ....... placidus (Walker) (p. 736) 



15 (11) Antennae with funicle proximally very slender, hardly more than half as thick 



as the pedicellus. Body bronzy green . . . ? fulvipes (Walker) (p. 733) 



Antennae with funicle proximally rather less slender than in the above. 



Body green ........ sp. indet. C (p. 737) 



16 (9) Antennal flagellum with virtually decumbent hairs. Gaster subcircular or 



shortly oval, immaculate, typically green with its disc purplish or bronze. 

 Median area of propodeum reticulate or smooth . . . . . 17 



Antennal flagellum with hairs standing out at an angle of 20 "-30°. Gaster 

 oblong, most often with a pale spot. Median area of propodeum smooth 

 or very weakly sculptured . . . . . . . . . 18 



17 (16) Median area of propodeum distinctly reticulate or strigose-reticulate. 



Usually at least the fore femora have a dark streak at base beneath, some- 

 times all the femora are darkened basally. Larger species, length 2-3 mm. 

 Stigma of fore wing usually fuscous and often rather large 



robustus (Walker) (p. 730) 

 Median area of propodeum virtually smooth. Femora yellow, immaculate. 

 Smaller species, 1-5-2 mm. Stigma of forewing paler and smaller 



? apertus (Walker) (p. 730) 



