308 NATURAL HISTORY BULLETIN. 



Centrinus punctirostris Lee. Colorado, Casey. 



C. salebrosus Casey. Colorado, Casey. 



C. pueverueentuS Casey. Colorado, Casey. 



Caeandrinus GRAndicoeeis Lee. Colorado Springs, a few specimens 



taken about the roots of plants on the prairies and foothills; Dixon 



Canon; West Cliff; Bellevue. 

 C. insignis Casey. Colorado, Casey. 

 C. obsoeetus Casey. Colorado, Casey. 

 Centrinogyna strigata Lee. Greeley. 

 Limnobaris confusa Boh. Colorado, Casey. 

 L. proeixa Lee. Greeley. 

 BarilepTon fameeicum Casey. New Windsor, September, Gillette; Fort 



Collins; Greeley. 

 Baeaninus uniformis Lee. Durango, Bowditch; La Veta. 

 B. eongipes Casey. , Manitou, Casey. 

 B. monTicola Casey. Colorado Springs, on scrub oaks. 

 B. nasicus Say. Dome Rock; several state records are extant. 

 B. QUERCUS Horn. Colorado, Snow. 



BRENTHID.E. 

 EupsaeiS MINUTA Drury. Colorado, Leconte. 



CALANDRID.E. 



Scyphophorus acupunctaTus Gyll. La Junta, Bowditch. 



Cactophagus vaeidus Lee. West Cliff. 



Rhodob.enus tredecimpunctatus 111. Lamar; Rocky Ford. 



Sphenophorus simplex Lee. A specimen supposed to come from Colo- 

 rado is in the Agricultural College collection. 



S. vomerinus Lee. La Junta, Bowditch; Prof. Snow reports a specimen of 

 the variety baridioides Lee. 



S. ULKEi Horn. Alamosa; Garland; Durango; Fort Collins; Berkeley; 

 Chimney Gulch; Colorado Springs. 



S. OCHREUS Lee. Rocky Ford. 



S. varioeosus Lee. Colorado, Horn. 



Trichischius crenatus Lee. Colorado, Leconte and Horn. 



COSSONUS PEA.TAEEA Say. La Junta, Bowditch; North Park. 



C. subareatus Boh. Durango; Upper San Juan. 



Stenosceus brevis Boh. Rist Canon. 



SCOLYTIDJE. 



This family is in very chaotic state at present, and seems to have been but 

 little understood by cataloguers. The records that follow are those pub- 

 lished in the papers referred to in the earlier pages of this work, and the 

 authority for each can be readily determined by consulting the list of local- 

 ities; the few exceptions are properly noted. Prof. A. D. Hopkins has been 

 at work on the Scolytidse for several years, and has kindly sent a list of 



