HYMENOPTEROUS FAMILY STEPHANID.I?.. 801 



(19.) 18. Metapleurte and median segment finely reticulate-rugose; [Enderl. 



terebra shorter than body, sheaths red-yellow . 9. fiavomactdatus 



(18.) 19. Metapleurse and median segment irregularly coarsely rugose ; [Schulthess. 

 terebra as long as body, sheaths red-brown ... 10. rothkirchi 



(1.) 20. Hind femora bidentate. 



(38.) 21. Sheaths of terebra with subapical pale band. 



(23.) 22. Sheaths broadly yellow-banded ; head small ; second seg- 

 ment finely punctate and dull ; femoral teeth yellowish. [Enderl. 



11. flaviclentatus 

 (22.) 23. Terebral sheaths white-banded. 



(27.) 24. Hind femoral teeth white. 



(26.) 25. Anterior tubercle obsolete, frons transrugose, neck elongate, 

 slender, median segment centrally basally smooth 



12. leucodontus Schlett. 



(25.) 26. Anterior tubercle normal, frons arcuate striate, neck normal, 



median segment cribrate punctate throughout . 13. elegans Elliott. 



(24-.) 27. Hind femoral teeth unicolorous with femora. 



(31.) 28. Frons rugose. 



(30.) 29. Frons with strong longitudinal carina, neck normal, meso- 



pleura3 and hind femora smooth 14. carinifrons Enderl. 



(29.) 30. Frons not carinate, neck short and broad, mesopleurie aciculate- 



punctate, hind femora aciculate 15. nigHpes Szcpl. 



(28.) 31. Frons not rugose. 



(33.) 32. Head very small, frons alutaceous, neck granulate aciculate, 

 metapleurae and median segment with large hexagonal 

 punctures 16. paruiceps Enderl. 



(32.) 33. Head normal. 



(35.) 34. Frons reticulate, neck transcarinate, metapleurse finely acicu- 

 late, petiole longer than rest of abdomen 17. frontilinea Morley. 



(34.) 35. Frons trans-striate. 



(37.) 36. Frons arcuate striate, terebra shorter than body... 18. trilineatus l^lWoti. 



(36.) 37. Frous trans-striate, but not arcuatelj'; terebra longer than 



body 19. c/ti»eMs»s Elliott. 



(21.) 38. Sheaths of terebra unicolorous. 



(40.) 39. Body rufo-testaceous, femoral teeth white; terebra apically 



black 20. alutaceusM-Oxlej. 



(39.) 40. Body chiefly black. 



(42.) 41. Petiole only half as long as rest of abdomen ; head small ; [Enderl. 



sheaths of terebra brown 21. brevipetiolatus 



(41.) 42. Petiole much more than half as long as body. 



(46.) 43. Terebra about as long as body. 



(45.) 44. Frons finely trans-striate ; first and second flagellar joints of 



equal length 22. ^WZoJci^((s Elliott. 



(44.) 45. Frons transrugose : second flagellar joint one and a half times 



as long as first 23. dohrni Enderl. 



(43.) 46. Terebra distinctly longer or shorter than body. 



(48.) 47. Terebra longer than body; frons arcuate rugose; two pro- 

 minences on posterior half of hind femora stronglj- 

 developed 24. quadridens Elliott. 



(47.) 48. Terebra shorter than body. 



(50.) 49. Terebra only half as long as body. Head small, frons arcuate 

 rugose, median segment aciculate, laterallj^ punctate 



25. terehellus Enderl. 

 (49.) 50. Terebra much more than half as long as body. 



(52.) 51. Anterior femoral teeth yellow, the posterior black. Head 

 small ; petiole very slender 2nd segment punctate. 



26. ruficollis Enderl. 



