174 THE CANADIAN ENTOMOLOGIST 



11. Criocephaliis asperattis LeConte. 



This is found in the northern part of the State and the 

 Sierras. It has been found flying around alpine fir. 

 It probably breeds in coniferous trees, especially firs 

 and spruces. July 20. 



12. Tetropitim velutinum LeConte. 



This breeds in Pseudotsuga taxifolia and is moderately 

 common in spruce forests north of San Francisco. A 

 variety is found in the Giant F'brest, Tulare County. 

 June-l-August 9. 



13. Opsimus qiiadrilineatiis Manner heim. 



This breeds in P. taxifolia and is found from Alaska to 

 San Francisco Bay. It probably also breeds in Sitka 

 Spruce {Picea sitchensis). 



14. Dicentrus bluthneri LeConte. 



This is found in coast counties north of San Francisco 

 and also rarely in the Sierras, near coniferous trees. 



15. Hylotrupes amethystinus LeConte. 



This is found in the Sierras from Shasta to Mt. San 

 Bernardino, rarer in the South. Breeds in P. ponderosa 

 and Libocedriis decurrens. Taken in numbers at 

 Tamarack, Nevada County by the author. July 2. 



16. Hylotrupes ligneus Fabricius. 



Found through the Sierras, also in the Coast Range to 

 Monterey. Taken by author on July 1 at Donner 

 Lake. This breeds in P. taxifolia in the Sierras, Pinus 

 radiata at Monterey, and probably in the sapwood of 

 Sequoia sempervirens also. 



17. Hylotrupes litigiosus Casey. 



This so-called dark variety is a good species (teste Van 

 Dyke). It breeds in the Sierra Fir near Forest Hill, 

 Placer County. 



18. Phymatodes variabilis Fabricius. 



This is only found occasionally in imported wood. 



19. Phymatodes hlandus LeConte. 



This is rarely found in Northern California. Sup- 

 posed to breed in grape vine. July 16. 



