360 Coleopterological Notices, V, 



fiftli appreciably wider than the base ; fourth and fifth segments equal in 

 length and each distinctly longer than one to three. Legs very short, stout. 

 Length 1.0 mm. ; width scarcely 0.2 mm. 



New York (Catskill Mts.). Mr. H. H. Smith. 



The more polished, more sparse!}^ pubescent integuments, less 

 transverse prothorax and shorter elytra, will readily distinguish 

 this species from capito. 



T. exiglia n. sp. — Extremely slender, parallel and linear, moderately 

 convex, shining, minutely, rather closely but not conspicuously punctate, the 

 pubescence ratlier long, close and distinct, streaming obliquely on the elytra 

 and transversely on the pronotum ; color rather pale brown, the head piceous, 

 the abdomen black toward apex ; legs and antennae toward base pale, flaves- 

 cent. Head large, rather convex, deeply impressed just before its centre; 

 sides parallel ; eyes at fully one-half more than their own length from the 

 base ; antennae nearly as in demissa. Prothorax one-third wider than long ; 

 sides feebly convergent and straight from apex to base ; base and apex broadly, 

 strongly arcuate, the former slightly the narrower ; disk strongly, rather 

 widely impressed along the median line. Elytra quadrate, barely wider than 

 long, one-third longer but scarcely perceptibly wider than the prothorax ; 

 sides parallel, straight; humeri very slightly exposed. Abdomen, extended, 

 a little longer than the anterior parts, at base perceptibly narrower than the 

 elytra ; sides straight ; apex of the fifth segment distinctly wider than the 

 first and fully as wide as the elytra ; first four tergites impressed at base, 

 the impressions successively and uniformly decreasing in depth and width. 

 Legs very short, stout. Length 1.3 mm. ; width 0.2 mm. 



Iowa (Cedar Rapids). Dr. E. Brendel. 



Almost as extremely slender as tenuissima, but with a minutely 

 punctate and parallel head. I can find only a single specimen 

 amongst my material, and the sex of the type is undetermined. 



TIIECTIJRA Thorns. 



The anterior and middle tarsi in this genus are distinctly four- 

 jointed, the posterior five-jointed, the basal joints very short and 

 equal and the last joint long ; its position among the allies of 

 Colpodota is therefore erroneous, and it should be transferred to 

 the neighborhood of Homalota Mann , with which however it can- 

 not be united because of its three-jointed labial palpi. The follow- 

 ing species is closely related to cuspidata Er. : — 



T. americaiia n. sp. — Slender, parallel, linear, very strongly depressed, 

 piceous-black ; antennae toward base and legs pale; anterior parts dull and 

 alutaceous, the head strongly, sparsely punctured, the pronotum and elytra 



