46 ORDER COLEOPTERA. 



the bases of the elytra touch the sternum. The head is smaller than in the preceding 

 species. Length five-tenths of an inch. 

 The head is without punctures, except on the posterior and lateral angles, and the 

 thoracic line does not extend to either margin. Color beneath of a light fawn. 



Harpalus erraticus. (Plate xix, fig. 13.) 



CJolor light brown or rufous, narrow, elongate ; thorax wider in front than posteriorly ; 



elytra slightly truncate, exposing the point of the abdomen. Length six-tenths of 



an inch. 



Tlie male is furnished with strong mandibles, and, in both sexes, the brown elytra are 



darker than the glossy head and thorax. 



Genus PANGUS (Zeigl.). Harpalus (Stephens). 



' Palpi with the terminal joint subcylindric : thorax narrowed behind ; angles rounded ; 

 ' antennse rather short' (Westwood). 



Pangus caliginosus. (Plate X, fig. 7.) 



Color black and rather dull, rather glossy beneath : the thorax has a broad transverse 



elevation. Elytra marked by about eight impunctate lines ; outer border obscurely 



punctate : legs furnished with rows of reddish spines and cilia. Length eight-tenths 



of an "inch. 



Pangus caliginosus is found sometimes upon the seedbearing tops of tall grass ; but it 



is not apparent whether the vegetable, or an insect inhabitant, was the object of pursuit. 



This insect is about an inch long, robust, broad, of a black color, with a large head and 



quadrate prothorax which is wider than long ; the elytra with eight impressed striae. 



Genus AMARA (Bn.). 

 « Oblong oval, broad, subdepressed ; head ovate ; thorax as broad as the elytra ; wings 

 ' two ; mentum-tooth bifid ; last Joint of the palpi ovate ; labrum quadrate, slightly 

 ' emarginate ; mandibles short, denticulated at base ; elytra somewhat emarginate at 

 ' the tip. Anterior tarsi of the males with three dilated joints' (Stephens). 



^Amara impuncticollis (Say). (Plate xix, fig. 11.) 



Color black with a strong purplish hue, or a cupreous lustre nearly uniform in tint. Length 



about four-tenths of an inch. 



The genus Amara is said to have been observed in Europe eating the seeds of immature 



grain ; but the damage that insects of carnivorous families are likely to do, are trifling in 



comparison to the benefits they confer. 



