COLEOPTERA — SCARAB^INA. 



209 



Fir Ceruchus, Diphyllostoma. Redwood Diphyllostoma. Oak Platycerus. 



agassii, californicus latus and opacus. 

 Sinodesdron, Platucerus oregonensis. .. 

 Ceruchus punctatus Lee. 



striatus Say. 

 Diphyllostoma fibriata Fall. 



striatus Lee. 

 Platycerus agassii. Lee. 



californicus Cas. 



chalybaeus — oregonensis. 



ccErulescens — oregonensis. 



Poplar Platycerus depressus. Alder 



depressus Lee. 



latus Fall. 



opacus Fall. 



pacificus — agassii Lee. 



parvicollis — agassii. 



thoracicus Cas. 

 Phyllostoma fimbriata Fall. 

 Finodendron rugosum Man. 



CURCULIONINA 



The members of this superfamily are known as weevils.. They all feed on 

 plants and many ot them are injurious. 



Anthribus aibinus Linn. 

 Brachytarsus alternatus Say. 

 scabrosus Fabr. 



ANTHRIBID/E. 



Gonops fissungnis Lee. 

 Toxotropis approximatus Lee. 



IPID^E. 



The members of this family are the wood borers that make the "pin holes" 

 in the bark of trees and the centipede-like burrows under the bark. They 

 are sometimes very injurious. They have the following food habits: — 



Pine Dendroctonus brevicomis, jeffreyi, monticolae, volens, Pityophthorus 

 nitidus. Fir Dendroctonus pseudotsugae. Spruce Scolytos unispinosus. Ce- 

 dar Phlceosinus cristatus. Cypress Phloeosinus cupressi. Redwood Phloeo- 

 sinus sequoiae. Oak Pityophthorus pubipennis 



Bostrichus pini — Tomicus. 

 Carphoborus bifurcus Esch. 



simplex Lee. 

 Cha;tophlceus hystrix Lee. 

 Corthj-lus cavus — Cryphalus. 



dentiger — Monarthrum. 



scutellaris — Monarthrum. 

 Cryphalus atratulus Lee. 



carinulatus — Pityophthorus. 



cavus Lee. 



dentiger — Monarthrum. 



digestus — Pityophthorus. 



pilosulus — Pityophthorus. 



pubipennis — Pityophthorus. 



puncticollis — Pityophthorus. 



retusus — Pityophthorus. 



striatus — Hypothenemus. 



sulcatus Lee. 



terminals Man. 

 Dendroctonus barberi Hop. 



brevicomis Lee. 



brevicornis — barberi. 



convexifron Hop. 



frontalis — barberi. 



frontalis — brevicornis. 



jeffreyi Hop. 



monticolse Hop. 



pseudotsugae Hep. 



similis — monticolae. 



simplex — pseudotsugae. 



terebrans — va liens. 



valens Lee. 

 Gnathotrichus retusus (Lee.) 

 Hylastes graeilins Lee. 



macer Lee. 



nigrinus (Man.) 



porosus Lee. 



lugipennis — Hylurgops. 



subcostulatus — Hylurgops. 

 Hylesinus aspericollis Lee. 



ci'enatus — serieeus. 

 cristr.tus — Phloeosinus. 



