276 M. W. R. de V. GRAHAM 



- Fore wing with speculum, on upper surface of wing, usually extending right to 



the cubital vein, if not then the postmarginal vein is distinctly shorter than 



the marginal vein .......... 17 



12 (11) Female propodeum broadly emarginate posteriorly, obviously shorter than the 



scutellar frenum ; gaster at base convex medially, with a fovea on each 

 side. Scutello-axillar sutures not very strongly convergent. Postmarginal 

 vein of fore wing distinctly shorter than the marginal vein. Anterior 

 margin of clypeus (Text-fig. 214) deeply emarginate. 



Fore wing (Text-fig. 218) with stigma large . . }pyricola (Marchal) (p. 291) 



- Female propodeum not broadly emarginate posteriorly, as long as or slightly 



longer than the frenum ; gaster at base with a median, subtriangular or 

 semicircular depression. Scutello-axillar sutures strongly convergent (as 

 in Text-figs. 202, 204). Postmarginal vein of fore wing nearly or quite as 

 long as the marginal vein ..... .... 13 



13 (12) Anterior margin of clypeus (Text-fig. 215) more distinctly emarginate ; 



speculum of fore wing large and closed below only by a single line of hairs on 



the cubital vein ........... 14 



- Anterior margin of clypeus (Text-fig. 216) shallowly emarginate ; speculum 



of fore wing, on upper surface of wing, interrupted below by several 

 scattered hairs and so not reaching the cubital vein (Text-fig. 222) . . 15 



14 (13) Head and thorax mainly green to blue. Mesepisternum with upper triangular 



area (below base of hind wing) smooth at least dorsally fumipennis Walker (p. 291) 



- Head and thorax coppery to bronze. Mesepisternum with upper triangular 



area alutaceous. 



Fore wing venation, Text-fig. 219 .... cupreus sp. n. (p. 291) 



15 (13) Female gaster lanceolate, usually strongly compressed and much narrower 



than thorax ; including the ovipositor sheaths, 1 -35 to 1 -5 times as long as 

 head plus thorax. Fore coxae mainly to wholly testaceous ; fore and mid 

 femora often wholly pale, hind femora sometimes so. Stigma of fore wing 

 rather small, slightly longer than high, separated by fully twice its height 

 from costal edge of wing ..... coniferae sp. n. (p. 291) 



- Female gaster ovate to sublanceolate, not or only slightly narrower than 



thorax ; including ovipositor sheaths, not or only slightly longer than head 

 plus thorax. Fore coxae metallic, or indefinitely testaceous on their inner 

 aspect only ; all femora more or less infuscate, at least proximally . . 16 



16 (15) Stigma of fore wing (Text-fig. 222) smaller, slightly longer than high, separated 



by fully twice its height from costal edge of wing or even by rather more 



than twice ........ vulgaris Walker (p. 293) 



- Stigma (Text-fig. 220) larger, subcircular, separated by slightly less than twice 



its height from costal edge of wing . . . unicolor Walker (p. 295) 



17 (11) Antennal scape in both sexes very nearly as long as an eye and, unless head is 



abnormally collapsed and distorted, reaching the median ocellus. Combined 

 length of pedicellus and flagellum in female slightly, in male obviously, 

 greater than breadth of head. In female at least funicular segments one to 

 three are longer than broad, and at most segment six is slightly transverse ; 

 in male all funicular segments are obviously longer than broad . Mesepimeron 

 nearly three times as long as broad . . . . . . . 18 



- Antennal scape in both sexes distinctly shorter than an eye, not reaching the 



median ocellus. Combined length of pedicellus and flagellum in female at 

 most equal to breadth of head, but usually less. In the female of most 

 species at most the first funicular segment is longer than broad, occasionally 

 also the second segment, but rarely the third. Males of most species with at 

 least the distal funicular segments subquadrate . . . . . 19 



