26 PROCEEDINCxS OF THE NATIONAL MUSEUM. vol. 63. 



9. Notauli complete 6. laevicollis (Ashmead). 



Notauli incomplete 10. 



10. Occiput with regular carinae, not rugose 7. rufipes (Ashmead). 



Occiput rugose, witliout regular carinae 8 caryae Ashmead. 



11. Fovea] striae on second tergite not extending beyond the depression pos- 



teriorly 12. 



Foveal striae extending beyond the depression posteriorly 13. 



12. Wings infuscated; frons rather finely and evenly striate all over. 



9. fuscipennis, new species. 



Wings hyaline; frons coarsely striate on lower half, more finely so above with 



the striae interrupted medially 10. striaticollis (Ashmead). 



13. Aciculations on sides and upper part of frons very fine and undulating; last 



abdominal segment in female shorter than the one preceding. 



11. canadensis (Ashmead). 



Sides and upper part of frons with distinct, not wavy, striae; last abdominal 



segment in female longer than the one preceding 12. picipes (Ashmead). 



14. Frons opaque, very faintly shagreened 13. vancouverensis (Ashmead). 



Frons more or less shining, polished, striate or more strongly shagreened 15, 



15. Foveae on second tergite not or very indistinctly striate or aciculate 16. 



Foveae on second tergite distinctly striate, at least near their apices 20. 



16. Abdomen in female much longer than the head and thorax united 17. 



Abdomen in female not longer than the head and thorax united; legs and antennae 



dark brown 18. 



17. Antennae and legs bright yellow or golden colored 14. confusa, new name. 



Antennae piceous or of a dark brown color; legs never entirely yellow, mostly 



brownish 15. nigrifemur (Ashmead). 



18. Seventh and eighth antennal joints in male distinctly longer than wide 19. 



Seventh and eight antennal joints about as wide as long; abdomen in male nearly 



two-thirds as wide as long 16. herrickii Packard. 



19. Frons polished, unsculptured; abdomen in male hardly over half as wide as 



long -.17. lampronota, new species. 



Frons shagreened 18. •websteri, new species. 



20. Females 21. 



Males ^25. 



21. Last three joints of the antennae black, the others golden-yellow; abdomen not 



longer than the head and thorax united 19. hyalinipennis (Ashmead). 



Antennae more uniform in color, the last three joints not so sharply differentiated; 

 abdomen longer than the head and thorax united 22. 



22. Antennal joints six and seven less than twice as long as wide. 



20. alnicola (Ashmead). 

 Antennal joints six and seven two or more times as long as wide 23. 



23. Abdomen extending beyond the apex of the wings when the latter are laid flat 



upon it 21. shastensis, new species. 



Abdomen not extending beyond the apex of the wings 24. 



24. Ninth antennal joint about three times as long as wide; antennae not so slender; 



abdomen failing to reach the tips of the wings when the latter are laid flat 



upon it 22. lucida, new species. 



Ninth antennal joint about four times as long as wide; antennae filiform, 

 extremely slender; abdomen just attaining the tips of the wings. 



23. gahani, new species. 



25. Second tergite very strongly striate basally 20. alnicola, (Ashmead). 



Second tergite less strongly striate basally 24. melanocera (Ashmead). 



