196 



H YMENOP TERA AC U LEA TA . 



(11) 14. Second subrnarginal cell narrow in both 

 sexes ; (J , entirely black, armature 

 nearly twice as wide as long ; ? , man- 

 dibles toothed ..... 

 10) 15. cJ, stipites distinctly strigose; ? , meso- 

 notum closely and rather largely 

 punctured ; apical dorsal valve wide, 

 flat and punctui'ed. 



n7) 16. Larger; abdomen of the cJ elongate, 

 lacinia of armature flat and submem- 

 branous, its apex clothed with long 

 hairs ; $ , dorsal apical valve only 

 slightly reflexed at the edges 



(16) 17. Smaller; abdomen of (J short, lacinia 

 of armature bifid at the apex ; ? , 

 dorsal valve distinctly margined 

 (9) 18. Stipites of cJ armature widely grooved 

 at the base ; ?, mandibles toothed; 

 or glabrous area of dorsal valve nar- 

 row and shining, labrum black. 



(22) 19. (J, basal segment of abdomen red, or 



mostly so ; basal pubescent bands of 

 antennas narrow ; J , anterior tibias 

 black in front. 



(21) 20. Larger ; (^.anterior tibire black in front; 

 $ , second segment of abdomen dis- 

 tinctly punctured at the base 



(20) 21. Smaller ; (5", anterior tibia3 pale in front; 

 $ , second segment of abdomen with 

 only very superficial punctures at the 

 base ....... 



(19) 22. (J, basal segment of abdomen black 

 except at the extreme apex, antennae 

 either with or without basal rings of 

 pubescence ; ? , anterior tibiae pale in 

 front. 



(24) 23. (J, antennal joints ringed with pu- 



bescence at the base ; ? , vertex 

 of head rather quadrate, pnnctura- 

 tion of mesonotum very fine and 

 scattered ...... 



(23) 24. (J, antennal joints without basal rings, 



the pubescence reaching nearly to the 

 apex ; ? , vertex of head less quadrate, 

 puncturation of mesonotum fine or 

 coarse. 

 (26) 25. cJ, thick portion oE the lacinia dilated at 

 the apex on its inner margin ; $ , 

 mesonotum not very shining, largely 

 punctured ...... 



(25) 26. (J apex of lacinia not widely dilated on 



its inner margin ; ? , mesonotum very 



FERRUGINATUS. 



lIYAI.INATU.'i 



VARIEQATUS. 



DIMIDIATUS. 



