134 Journal New York Entomological Society. [Voi. v. 



with the set^B arising from them well marked. They are included in 

 the category "third interval with dorsal punctures." 



Bembidium Latr. 



Antennae slender, arising under a slight frontal margin, the two 

 basal joints glabrous. Head with two supra- orbital setse. Mandibles 

 with a setigerous puncture in the scrobe. Palpi with the penultimate 

 joint obconical, pubescent, the last joint small, subulate. Prothorax 

 with a setigerous puncture each side and another in the hind angle. 

 Elytra glabrous, striate, the margin interrupted posteriorly with an in- 

 ternal plica; sutural stria not recurved at apex. Mesosternal epimera 

 wide. Middle coxal cavities entirely inclosed by the sterna. Anterior 

 tibiae deeply emarginate, the apical angle not obliquely truncate. Tarsi 

 slender, the claws simple. 



The males have the first two joints of the anterior tarsi dilated, the 

 first slightly elongate, nearly quadrate, the second more or less triangu- 

 lar, with the inner angle slightly prolonged. 



The species of this genus are very numerous. They are all below 

 the average size, ranging from two to about nine millimeters. Most of 

 them are riparial in their habits, though some are found in moss, 

 amongst old leaves or under bark, while a few occur almost everywhere. 



Synopsis of Species. 



Eyes large or moderately lai-ge, convex. 2 



Eyes small, flattened 49 



2. Elytra with the humeri subangulate, third interval vvith dorsal punctures 3 



Elytra with two dorsal punctures on the third stria 12 



Elytra with the humeri rounded, third interval with dorsal punctures 28 



3. Mentum with a short, bifid tooth ; striae of elytra more or less abbreviated be- 



hind 4 



Mentum with a large, entire tooth ; strios of elytra entire 



4. Elytral intervals with rows of sparsely placed setigerous jmnctures. 5 



Robust, convex ; green or bronzed, shining; prothorax subquadrate, slightly 

 wider at base than apex ; base of antennae and legs testaceous, the femora 



sometimes darker. Length, . 22-.29 inch ; 5.5-7.25 mm l£evigatum. 



Elytra with two dorsal punctures on the third interval. 



Robust, slightly convex ; aeneous or nigro-aeneous ; prothorax subquadrate, 

 wider at base than apex; antennae black, moie or less rufous at base; legs 

 black or dark piceous, often slightly aeneous, the tibiae and tarsi sometimes 

 rufo-piceous. Length, .18-.28 inch; 4 5-7 mm tlitidum. 



5. Elytra with two impressed quadrate foveae on the third interval, each enclosing 



a dorsal puncture 6 



Elytra without trace of fovere ; two dorsal punctures on the third interval. ... 9 



