282 M. W. R. de V. GRAHAM 



29 (28) Length i-8 to 2-1 mm. Posterior ocelli 1-3 to 1-4 times their diameter from 



the eyes ; POL 1-75 to 2 times OOL .... praecox sp. n. (p. 307) 

 Length i-6 to 1-9 mm. Posterior ocelli 1-4 to 1-75 times their diameter from 



the eyes ; POL 1 -6 to 1 -8 times OOL . . fulvicornis (Walker) (p. 308) 



30 (22) Fore wing (Text-fig. 249) with stigma smaller. Mesepimeron rather less than 



three times as long as broad. Legs, excluding coxae, flavous to fulvous. 

 Antennal scape usually wholly fulvous, sometimes infuscate dorsally. 

 Propodeum with a more or less distinct median carina hamillus Walker (p. 296) 

 Fore wing (Text-fig. 250) with stigma larger. Mesepimeron about three times 

 as long as broad. Legs with all femora more or less infuscate with a 

 metallic gloss. Antennal scape infuscate at least dorsally, sometimes more 

 or less metallic. Propodeum medially raised like a roof, but usually without 

 a distinct median carina ..... acontes Walker (p. 297) 



31 (19) Propodeal callus with numerous bristles which are scattered over its surface and 



extend quite near to the metapleuron. Gaster of female with a subtri- 

 angular median depression at the base. 



Postmarginal vein distinctly longer than stigmal vein. Propodeal spir- 

 acles not quite touching the metanotum. Mesoscutum quite thickly pilose ; 

 head and thorax bright green to blue . . . . . . .32 



Propodeal callus with only three to six (seven) bristles, arranged in one or 

 two longitudinal rows and leaving a broad bare strip between the bristles 

 and the edge of the metapleuron. Gaster of female at base usually with two 

 lateral foveae, convex or ridged between these ; rarely with a median 

 depression ............ 34 



32 (31) Antennal scape at least mainly, and all coxae, black with a metallic tinge ; 



femora black proximally ; tegulae yellowish to brown ; antennal pedicellus 

 and flagellum testaceous with their dorsal surface more or less infuscate. 

 Gaster lanceolate or ovate-lanceolate, 2-5 to 3 times as long as broad, 

 slightly to distinctly longer than head plus thorax . venustus sp. n. (p. 320) 



Antennal scape, fore coxae, femora, and tegulae, citron-yellow ; pedicellus and 

 flagellum yellow, the incisures of the latter sometimes brownish. Gaster 

 sometimes relatively shorter ........ 33 



33 (32) Female gaster 2 to 2-5 times as long as broad, including ovipositor sheaths, 



somewhat compressed and narrower than the thorax, slightly to distinctly 

 (up to 1 -3 times) as long as head plus thorax ; ovipositor sheaths exserted 

 to a length about equal to the first segment of the hind tarsus. Antenna 

 (Text-fig. 246) with combined length of pedicellus and flagellum equal to or 

 slightly greater than breadth of head ; first funicular segment quadrate or 

 very slightly longer than broad, second subquadrate, fifth 1 -55 to 1 -8 times as 

 broad as long ; clava as long as, or hardly longer than, the three preceding 

 funicular segments together ..... citripes (Thomson) (p. 318) 

 - Female gaster 1-3 to i-6 times as long as broad, flattened and as broad as the 



thorax, only about as long as the thorax ; ovipositor sheaths at most slightly 

 exserted. Antenna (Text-fig. 247) with combined length of pedicellus and 

 flagellum slightly less than breadth of head ; first funicular segment quad- 

 rate to slightly transverse, second slightly transverse, fifth about twice as 

 broad as long ; clava as long as 3-33 to 3-5 of the preceding funicular seg- 

 ments ........ lativentris sp. n. (p. 318) 



34 (31) Female gaster oval, not longer than thorax, obtuse or subobtuse apically, the 



ovipositor sheaths concealed in dorsal view ; last tergite lying in about the 

 same place as the preceding one and not separated from it dorsally by a 

 membranous gap ....... aequus sp. n. (p. 321) 



