36 Journal New York Entomological Society. [vouv. 



PRELIMINARY HANDBOOK OF THE COLEOPTERA 

 OF NORTHEASTERN AMERICA. 



By William Beutenmuller. 



(Continued from Vol. IV, p. 49.) 



The following description of the species of Tachys, may be of ser- 

 vice to those desiring to identify their species. The genus needs revi- 

 sion and a comparison of the types of the species must be made before 

 any synopsis can be prepared. 



T. proximus Say. — Head and thorax piceous; antennae rufous ; 

 thorax transversely subquadrate, slightly contracted behind ; posterior 

 angles rectangular ; dorsal line distinct, basal ones indented ; elytra 

 testaceous with a black spot on the middle hardly attaining the mar- 

 gin, scutellar region dusky; strise very obtuse, obsolete, wanting at 

 sides and apex, impunctured, intervals convex ; underside piceous, 

 paler at tip; feet testaceous. Length 2.5 mm. 



Habitat : New York, New Jersey, Pennsylvania, Ohio. 



T. scitulus Lee. — Flavo-testaceous, glossy ; head dark brown, 

 front black ; thorax convex, rounded at sides, retracted behind, hind 

 angles obtuse, not rounded ; margin behind the middle reflexed ; elytra 

 broader than the thorax, elongate, somewhat convex ; flavo-testaceous 

 Avith a dark brown fascia behind the middle ; sutural stria entire, re- 

 curved behind ; second stria abbreviated ; remaining stride almost ob- 

 solete ; fourth interval with a large piliferous puncture before the mid- 

 dle and one near the apex ; marginal stria much abbreviated anteriorly; 

 underside rufo-piceous; legs testaceous. Length, 2.5 mm. 



Habitat : New York, New Jersey, Pennsylvania, Ohio. 



T. pumilus Dej. — Rufo-testaceous ; thorax subquadrate, hind 

 angles sub-acute.; elytra oblong-oval, shining bluish behind; first and 

 second striae distinct, external striae obsolete, with impressed punctures ; 

 underside blackish brown ; legs testaceous. Length, 2 mm. 



Habitat : Illinois, Florida. 



T. corruscus Lee. — Piceous, with a bluish reflection, shining; 

 thorax broader than long, sides rounded, slightly retracted behind, base 

 at each side obliquely truncate ; hind angles strongly obtuse, disc 

 slightly convex ; elytra much broader than the thorax, elongate, slightly 

 narrower anteriorly, subconvex, with two piliferous punctures ; sutural 

 stria deep, entire, almost touching the base and strongly recurved be- 



