COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA. 317 



CATALOGUE OF THE COL,EOPTERA OF SOUTHWEST- 



ERIV PENNSYEVAIVIA, WITH KOTES 



AXD DEf§»CRIPriOI¥S. 



BY JOHN HAMILTON, M. D., 

 Allegheny. Pa. 



The title of this catalogue as first written was : " The Coleoptera 

 of Allegheny, Pittsburgh and Environs," a very large proportion 

 of all the Coleoptera on the list having been taken in the immediate 

 vicinity of these cities, especially Allegheny. But collections made 

 in many other parts of western Pennsylvania, the contiguous parts 

 of West Virginia and southeastern Ohio, by myself and others, fur- 

 nished few additional species, and by the insertion of those taken 

 near St. Vincent and in adjacent parts of the Alleghanies (Cambria 

 and Somerset Counties) by Prof Jerome Schmitt and his assistants, 

 and those by Mr. Henry Klages near Jeanuette (both places being 

 in Westmoreland County, eastward from Pittsburgh) — all the Cole- 

 optera known to me to have been taken in western Pennsylvania are 

 included, and this list therefore properly receives the more compre- 

 hensive title. 



Allegheny, which is destined in the course of time to become an 

 integral part of Pittsburgh, is situated on the right bank of the 

 Allegheny and Ohio Rivers, with a present frontage on the former 

 of two and on the latter of three miles, in latitude 40'' 28', longitude 

 80° or (Allegheny Observatory). The length of the day at Sunnner 

 solstice is fourteen hours, fifty-six minutes and fifty seconds. The 

 altitude above sea-level is between 699 feet, city datum, low water 

 level ; and Mount Washington 1106 feet; Herron Hill, Pittsburgh, 

 1259 feet ; and Green Tree Hill, three and one-half miles north from 

 Allegheny City Hall, 1839 feet. The facies of the country for many 

 miles on all sides of the rivers is much the same as represented by 

 the city topographies, a series of elevations and abrupt depressions 

 intricately arranged. 



The general topography of the region adjacent to the cities is 

 favorable to the existence of a rich and diversified Coleoptera fauna. 

 The Allegheny, arising in New York, flows southwartUy till it is met 

 here by the Monongahela flowing northwardly from its source in 



TRANS. AM. ENT. SOC. XXII. . OCTOBER, 1895. 



