464 ColeoiJlerological Notices. 



still well separated toward the sides. Sciitellura well developed, of the usual 

 structure. Elijtra parallel, just visibly M-ider thau the prothorax and rather 

 more than three times as long, at base but very slightly wider thau the base 

 of the proiiotum, the humeri rounded ; apex broadly, obtusely rounded ; sides 

 very feebly arcuate; disk finely striate, the striae feebly impressed, rather 

 finely punctate, the punctures generally separated by between once and twice 

 their own diameters ; intervals Hat, rather coarsely, sparsely and irregularly 

 punctured. Abdomen coarsely, rather sparsely punctured. 



Male. — Anterior tarsi rather strongly dilated, very densely clothed beneath 

 with long dense spongy-pubescence ; intermediate very feebly dilated and 

 narrowly but densely pubescent beneath ; abdomen broadly, very feebly im- 

 pressed in the middle toward base. 



Length 6.0-6.8 mm. ; width 2.2-2.7 mm. 



Texas (El Paso). Mr. Dunn. 



The largest and most robust species which I have examined, quite 

 distinct from angustus in the broad prothorax, strongly emargiuate 

 at apex, by the finer strial punctures and coarser punctures of the 

 intervals, as well as in the more strongly developed tarsal characters 

 of the male. 



]W. angustus Lee. — Bhpstinus ang. : Ann. Lye. N. Y., V, 1851, p. 147. — 

 Slender, depressed, subparallel, piceous-black throughout, shining ; legs rufo- 

 piceous ; pubescence moderate in length, line, sparse but pale cinereous and 

 distinct. Head a little wider than long, feebly convex, broadly trapezoidal 

 before the eyes, coarsely and not very densely punctate ; ej)istoma broadly 

 sinuate ; upper lobes of eyes moderate, ovate ; antenufe slender, fully as long 

 as the head and prothorax, very feebly incrassate toward tip, third joint 

 slender, nearly as long as the next two, tenth nearly as long as wide, the 

 eleventh a little longer than wide and but just perceptibly narrower than the 

 tenth. Prothorax less than one-half wider than the head and about one-third 

 wider than long ; base and apex equal in width, the former truncate and just 

 visibly arcuate, the apex more strongly and very broadly sinuate; basal 

 angles obtuse, not in the least rounded ; sides strongly arcuate ; disk widest 

 at the middle, coarsely and deeply punctate, the punctures rather sparse 

 toward the middle; denser laterally but not contiguous. Scutellura triangular, 

 densely punctate, with a wide polished impunctate margin. Elytra parallel, 

 nearly one-fourth wider than the prothorax and three times as long ; sides 

 feebly arcuate ; apex rather obtusely rounded ; humeri rounded, not covered 

 by the prothorax, tlie base of the latter distinctly narrower than that of tlie 

 elytra ; disk coarsely striate, the strife rather feebly impressed and coarsely 

 punctate, the punctures round, deeply ])erforate, well separated ; intervals 

 three to four times as wide as the strial punctures, flat or very feebly convex, 

 finely, very sparsely and irregularly punctured. Abdomen coarsely, sparsely 

 punctate. Legs rather long, the fourth joint of the posterior tarsi fully as 

 long as the first three together. 



