VTTT MISCELLANEOUS FOREST INSECTS. 



The North American species of Pissodes — Continued. Page. 



Synopsis of larval characters 39 



Table of dislril)Ution ■ 40 



Table showing relations of species to host trees 41 



Table of host trees 42 



Characters common to the species of the genus 43 



Characters common to the species of the major and minor divisions 43 



Division 1 43 



Subdivision A 44 



Section al 44 



Subsection bl 44 



1. Pissodes similis 44 



2. Pissodes utahensis 45 



3. Pissodes barberi 45 



Subsection b2 46 



4. Pissodes sitchensis 47 



5. Pissodes engelmanni 47 



6. Pissodes strobi 48 



7. Pissodes approximati(s 49 



8. Pissodes schwarzi 50 



9. Pissodes canadensis 51 



10. Pissodes nemorensis 51 



11. Pissodes deodarse 52 



12. Pissodes californicus 53 



13. Pissodes yosemite 53 



14. Pissodes webbi. 54 



Section a2 55 



, Subsections b3 and b4 55 



15. Pissodes radiate. 55 



16. Pissodes fasciatus 56 



Subdivision B 56 



Section a3 57 



17. Pissodes costatus 57 



Section a4 58 



Subsection b5 59 



18. Pissodes fislcei 59 



19. Pissodes nigrx 59 



20. Pissodes piincticoUis 60 



21. Pissodes vmrrayamt 60 



22. Pissodes coloradensis 60 



I 23. Pissodes alascensis 61 



24. Pissodes rotundatus 61 



Subsection b6 62 



25. Pissodes burkei 62 



26. Pissodes piperi 62 



27. Pissodes diibius 63 



28. Pissodes fraseri. .' 63 



Division II 64 



29. Pissodes affinis 64 



30. Pissodes curriei 65 



List of described species of Pissodes 65 



Bibliography 66 



