The True Plies 



Face perpendicular and at pi 



lower i 'ri minute 



or diverging toward th< 



53 Femora and usually the ; 

 Femora slender 



53 Fourth 



Fourth 



54- 



curving toward the 

 couplet 51). 

 PLATE XIV. 

 mspherical, not prolonged 



-Head nearly hemispl 



lead prolonged 1; SAW-FLIERS situated at the apices of 

 the prolongations, front femora \\ 



FIG. 



1 . Schizocerus plumigera <?, 



2. Macrocephus trifasdatus 



3. Emphytus mellipes 



4. Lyda ocreata $ 



5. Lophyrus lecontei 



6. Schizocerus plumigera ? 



7. Hylotoma caeruleus 



8. Emphytus cinctipes 



9. Lyda ocreata $ 



10. Periclista purpuridorsum 



1 1. Monoctenus juniperi ? 



12. Hylotoma clavicornis 



13. Phymatocera fumipennis 



14. Lyda multisignata 



1 5. Neurotoma fasciata 



1 6. Monoctenus juniperi ? 



17. Hylotoma miniata 



18. Tenthredo formosa 



19. Hemichroa albidovariata 



HG. 



20. Macrophya incerta 



21. Zaraea americam. 



22. Liolyda plagiata 



23. Strongylogaster soriculata 



24. Dolerus coloradensis 



25. Macrophya formosa 



26. Parasiobla rufocinctus 



27. Trichiosoma crassum 



28. Pteronus trilineatus 



29. Pachynematus extensicornis 



30. Strongylogaster terminalis 



31. Dolerus similis 



32. Pteronus coryli 



33. Harpiphorus intermedius 



34. Xiphidria provancheri 



35. Panrurus areolatus 



36. Xeris morrisonii 



37. Tenthredo discrepans 



Hairs of the 



ond 



