324 sriiPiiiD.i:. 



(b) Second abdominal segment short but 



very distinctly contracted basally or at 

 about the middle ; at narrowest part 

 at least j^ as wide as greatest width of 

 abdomen, generally broader than this. 

 Snd secjment ohvays shorter than 3rd. . 9. 



(c) Second abdominal segment very long 



and very slender, much less than \ of 

 the greatest widtii of abdomen. 2nd 

 sef/mm t alicays distiiicfh) longer than 3rd 1 1 . 



6. Two siiort longitudinal yellow spots on 



thorax beliind suture 7. 



No such stripes behind suture 8. 



7. A large, sulphur-yellow spot on eaeli side 



of 1st abdouiinalseginent; pale markings [p. 329. 



of thorax ;Mid abdomen sulphur-yellow. . dimidiatipennis, Brun., 

 No spots on 1st aljdominal segment ; niarlv- 



ings on thorax and abdomen orange-brown brevis, Brun., p. 328. 

 ^. First abdominal segment without a yellow 



spot Oil each side at base compacta, Brun., p. 329. 



First abdominal segment with a distinct 



3'ellow .«pot on each side at base, often [p. 331. 



very large and conspicuous orncdifrons, Brun., 



9. Two short, elongate, yellow stripes on [p. 330. 



thorax behind suture himalayensis, de Meij., 



No such stripes present 10. 



10. Thorax with a spot at each end of suture, 



also an elongate vertically placed spot on 

 either side on mesopleura ; all these spots 



yellow crux, Brun., p. 332. 



No such spots present fenestrata, sp. n., p. 333. 



11. Two short, ebmgate yellow stripes on 



thorax behind suture 12. 



No such .stripes present . . 15. 



12. A median, generally triangular, yellow spot [p. 333. 



between the post-sutural short stripes .. tritwtata, de Meij., . 

 No .such median spot 13. 



13. Orange-brown -species; (legs all orange- 



yeUuw, including coxte ; frons and vertex 



brownish-orange, without obvious calli) . ;)o/is^o7Vfes, sp. n., p. 335. 

 Black-and-vellow species ; (legs always 

 with distinct bhick parts, even if only 

 hind coxae) 14. 



14. Third and 4th segments of abdomen with 



peculiarly shaped markings patricia, sp. n., p. 335. 



Abdominal markings consisting only of the [p. 336. 



normal hind marginal bands tredecimjmnctata, sy>. n., 



15. I'rownish-orange species ; wings j'^ellowish- [p. 337. 



grey with a distinct brownish spot at tip. eumenioidcs, Saund., 

 Black species, generally with pale mark- 

 ings ; wings grey, more uniformly iufus- 

 cated on anterior half 16. 



16. Body without pale mai'ks, except that the 



humeri and hind margins of abdominal 

 segments are very narrowly brownish- 

 yellow , , ohscura, Brun., p. 33>^. 



Body with yellow .spots on thorax, abdom- 

 inal sea-ments with hind margins vellow . iavann, Wied., p. 339. 



