652 M. VV. R. de V. GRAHAM 



without sensilla, funicle therefore five-segmented ; at least the last segment 



of the funicle slightly to distinctly transverse ..... 20 



19 (18) Median area of propodeum quite strongly sculptured. Antennae with third 



flagellar segment longer than broad, as long as the fourth, with sensilla ; 

 flagellum less slender than in juniperinus zetterstedti (Dalla Torre) (p. 678) 

 Median area of propodeum more weakly sculptured. Antennae with third 

 flagellar segment quadrate or slightly longer than broad, usually slightly 

 shorter than the fourth and sometimes lacking sensilla ; flagellum rela- 

 tively slender ...... juniperinus v. Rosen (p. 670) 



20 (18) Median area of propodeum with relatively strong strigose-reticulate sculpture. 



Pronotal collar sharply margined throughout, or except just at the sides. 

 Fore wing usually with a small brownish cloud below and touching the 

 stigmal vein ...... subfumatus (Ratzeburg) (p. 678) 



Median area of propodeum with relatively weak sculpture. Pronotal collar 

 at most sharply margined in the middle. Fore wing immaculate 



longicollis sp. n. (p. 671) 



21 (15) Fore wing with marginal vein 1 to 1-4 times as long as the stigmal vein ; 



postmarginal vein often a little longer than the marginal vein . . . 22 



Fore wing with marginal vein i-6 to 2-2 times as long as the stigmal vein ; 

 postmarginal vein at most as long as, but usually shorter than, the marginal 

 vein ............. 24 



22 (21) Clypeus and face reticulate ; breadth of oral fossa only 1-5 to 1-7 times the 



malar space. Pronotal collar not distinctly margined, occasionally some 

 trace of a margin in the middle. Median area of propodeum weakly and 

 irregularly sculptured, or smooth. Marginal vein of fore wing 1-2 to 1-4 

 times as long as the stigmal vein. Head and thorax green to blue-green, or 

 bronze-green ; femora and tibiae usually yellow or testaceous, the femora 

 sometimes slightly infuscate .... incultus (Walker) (p. 654) 



Clypeus and face strigose or strigose-reticulate ; breadth of oral fossa 1 -8 

 or more times the malar space. Pronotal collar with a fine though sharp 

 margin. Median area of propodeum relatively uniformly reticulate. 

 Marginal vein of fore wing 1 to 1 -2 times as long as the stigmal vein. Head 

 and thorax varying from dark blue or blue-green to violet-black ; femora 

 mainly black, tibiae usually infuscate (Sturovia Boucek) .... 23 



23 (22) Anterior margin of clypeus very shallowly emarginate ; breadth of oral fossa 



about i-8 times the malar space . Sturovia squamifera (Thomson) (p. 637) 



- Anterior margin of clypeus curved slightly forwards ; breadth of oral fossa 



more than twice the malar space . Sturovia albitarsus (Walker) (p. 638) 



24 (21) Hind margin of scutellum with a small tooth or tubercle in the middle ; 



frenum marked off as an area of coarser sculpture. Antennae with third 

 flagellar segment sometimes more than half as long as the fourth and often 

 with sensilla ....... phragmitis (Erdos) (p. 664) 



Hind margin of scutellum without a tooth or tubercle ; frenum often less 

 distinctly defined. Antennae with third flagellar segment, except in 

 maculicornis, anelliform and lacking sensilla ...... 25 



25 (24) Anterior margin of clypeus deeply emarginate medially. Antennae with two 



anelli and six funicular segments. . . maculicornis (Giraud) (p. 667) 



- Anterior margin of clypeus shallowly emarginate or subtruncate. Antennae 



with three anelli and five funicular segments ...... 26 



26 (25) Antennae with funicular segments not transverse, or at most the fourth and 



fifth slightly so ; the proximal segments often slightly longer than broad 27 

 Antennae with at least the distal segments of the funicle moderately to 



strongly transverse, the proximal segments sometimes slightly so .28 



