VI miscp:llaneous forest insects. 



Contributions toward a Monograph of the Bark-Weevils of the Genus 

 PissoDES — Continued. 



The North American species of Pissodes — ^Continued. Page. 



Synopsis of larval characters 39 



Table of distribution • 40 



Table showing relation 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 barberl 45 



Subsection b2 46 



4. Pissodes sitchensis 47 



5. Pissodes engelmanni 47 



6. Pissodes strobi 48 



7. Pissodes approxiinutus 49 



8. Pissodes schivarzi 50 



9. Pissodes canadensis 51 



10. Pissodes nemorensis 51 



11. Pissodes deodarx 52 



12. Pissodes californicus '. 53 



13. Pissodes yosemite 53 



14. Pissodes ivebbi 54 



Section a2 55 



Subsections b3 and b4 55 



15. Pissodes radiatae 55 



16. Pissodes fasciatus 56 



Subdivision B 56 



Section a3 57 



^ 17. Pissodes costatus 57 



Section a4 58 



Subsection b5 59 



18. Pissodes fiskei 59 



19. Pissodes nigrse 59 



20. Pissodes puncticolUs 60 



21 . Pissodes murrayanx 60 



22. Pissodes coloradensis 60 



23. Pissodes alascensis 61 



24. Pissodes rotundatus 61 



^ Subsection b6 62 



25. Pissodes burkei 62 



26. Pissodes piperi 62 



27. Pissodes dubius 63 



28. Pissodes fraseri 63 



Division II 64 



29. Pissodes affinis 64 



30. Pissodes curriei 65 



List of described species ol Pissodes 65 



Bibliography 66 



