102 Cincinnati Society of Natural History. 



NEW COLEOPTERA FROM CINCINNATI, OHIO 

 Family Endomychidae 



By Charles Dury 



After many years careful collecting, fifteen species of these 

 interesting beetles have been taken here. Some of them are 

 abundant, though one species belonging to the genus Anamor- 

 phus has yielded but a single specimen. Prof. L. B. Walton 

 of Gambier, Ohio, has in preparation a Generic Monograph of 

 the family for the Genera insectorum. There will doubtless 

 be some changes in the nomenclature of our lists. Three 

 species of Symbiotes Redt. occur here. One of these was also 

 taken at Gambier, Ohio, by Professor Walton, and a descrip- 

 tion read at meeting of Ohio Academy of Sciences, December 

 11, 1911, and since then published in Ohio Naturalist, Vol. 

 XII, No. 4. The other two described below I have occasionally 

 taken in a certain woods, always in fungus and never associ- 

 ated with ants. The fungus was growing on dead trees and 

 old logs. I find En do my chid s more abundantly in the fall and 

 early in the spring. Doubtless many of them hybernate, as I 

 have taken them in midwinter clinging to the under side of 

 logs and fence rails left laying on the ground. The species 

 for which 1 propose the name impressus had been identified 

 for me as pyginceiis Hamp. which is, I believe, a synonym of 

 (jibberosus Lucas. On comparison with that species it is found 

 to be dififerent. The descriptions follow below. 



Symbiotes impressus, n. sp. 



Color piceotestaceus, shining, vestiture consisting of long, 

 pale hairs, rather sparse and reclining. Body oval in outline. 

 Antenn?e with second joint shorter than first. Third, fourth 

 and fifth equal, subquadrate. Sixth slightly longer. Seventh 

 oval, longer than wide. Eighth subglobose. Ninth subquad- 

 rate as wide as long. Tenth slightly wider. Eleventh longer 

 than wide, bluntly pointed. Thorax with sides explanate and 

 arcuate, very minutely punctuate margined at base and 



