4 8 4 M. W. R. de V. GRAHAM 



- Antennae (Text-figs. 364, 366, 367) with first funicular segment clearly shorter 



than the pedicellus and quadrate to slightly transverse, second at least slightly 

 transverse, third to sixth distinctly so. Clava viewed ventrally (Text-figs. 

 365, 368) with its area of micropilosity extending more than half way 

 towards the base ; apical margin of first claval segment distinctly excised 2 



2 (1) Antenna (Text-fig. 364) with clava about as long as the five preceding funicular 



segments together, sometimes nearly as long as the whole funicle ; viewed 

 ventrally (Text-fig. 365) its area of micropilosity extends nearly to the base 

 of the clava, whose first segment has its apical margin deeply semicircularly 

 excised ; distal funicular segments strongly transverse, the sixth about twice 

 as broad as long ; scape not reaching the median ocellus. Propodeum with 

 nucha occupying about one third of the total length or slightly more 



grandiclava (Walker) (p. 486) 



- Antenna (Text-figs. 366, 367) with clava about as long as the three or four 



preceding funicular segments together ; viewed ventrally its area of 

 micropilosity extends two thirds to three quarters of the distance towards 

 the base : distal funicular segments less strongly transverse, the sixth at 

 most about 1-7 times as broad as long : scape reaching at least to the level 

 of the lower edge of the median ocellus. Propodeum with nucha occupying 

 about half the total length ......... 3 



3 (2) Antennal scape partly to wholly fulvous : legs except coxae, usually fulvous, 



sometimes the femora more or less reddish. Pronotal collar indistinctly 

 margined, reticulate except for a very narrow strip along its hind margin. 

 Head and thorax with strong green to greenish blue metallic reflections ; 

 gaster strongly metallic-tinged. Antennal funicle (Text-fig. 366) rather 

 less attenuate proximally, where it is usually slightly stouter than the 

 pedicellus, only just as stout as the pedicellus in small females 



intermedia sp. n. (p. 486) 

 Antennal scape metallic ; femora mainly dark, tibia usually more or less broadly 

 infuscate. Pronotal collar (Text-fig. 370) distinctly margined, with a fairly 

 broad smoother strip along its hind margin. Head and thorax usually with 

 obscure bluish and bronzy reflections, less often with the mesoscutum and 

 scutellum greenish or coppery. Antennal funicle (Text-fig. 367) rather 

 more attenuate proximally, where it is not stouter than the pedicellus, in 

 small females even less stout .... deione (Walker) (p. 485) 



(Males) 



1 Head and thorax bluish black, usually with some bronze reflections on the 



scutellum and mesoscutum ; legs very dark, the femora mainly blackish, 

 tibiae more or less broadly infuscate. Antenna (Text-fig. 369) with 

 flagellum with subdecumbent hairs, funicular segments quadrate or hardly 

 longer than broad, the first at most as long as the pedicellus ; clava nearly 

 as long as the three preceding funicular segments together. Mesoscutum 

 relatively shiny, its sculpture having wider-meshed areoles. Pronotal collar 

 rather sharply and evenly margined, except just at the sides 



deione (Walker) (p. 485) 



- Head and thorax usually green to blue-green, occasionally bronze-green ; 



tibiae nearly always testaceous, sometimes also the femora. Antenna with 

 flagellum clothed with pale or whitish hairs which stand out at an angle of 

 about 30 ; proportions of funicular segments and clava usually otherwise. 

 Mesoscutum relatively duller, its sculpture usually denser. Pronotal collar 

 tending to be less distinctly margined, sometimes nearly immarginate . 2 



