1G6 J. L. LECONTE, M. D. 



tlie pi'ofliornx, olongate-oval, emarginate at base, strife fine, interspaces flat, 

 dorsal punctures two, adjacent to the second stria; the base nearly to the mid- 

 dle, epipleurse, side margin, suture, and a common circular spot near the tip are 

 orange color, the rest of the surface iridescent black. Length 5.5 mms. 



Three specimens, Bosque Co., Belfrage. Closely reseiubles B. macit- 

 latus, and differs only by the side margin of the prothorax not being 

 wider towards the hind angles, and by the antennas being piceous, 

 with only the first and second joints yellow. 



II. B. refle.ictas.^ — Pieeous shining, legs pale; margin of prothorax and 

 elytra piceo-testaceous, the latter with a slight metallic reflection, strise fine, 

 interspaces broad, nearly flat, third with two distinct dorsal punctures adjacent 

 to the second stria; prothorax wider than long, trapezoidal, narrowed behind, 

 sides more strongly margined than usual, margin wider and more reflexed near 

 the base, which is oblique each side; hind angles very obtuse and rounded; 

 basal impressions rather deep; antennae pieeous, tip of eleventh joint paler. 

 Length 4 mm. 



New York, Michigan, Louisiana. Confused in my collection with 

 B. micans, from which it differs by smaller size and more strongly 

 margined prothorax. 



According to a typical specimen B. siibmarinus Motsch., differs 

 from fernigiaeus only by the size being smaller, (4.5 mm.), and the 

 hind angles of the prothorax more distinctly marked. It seems to me 

 only a slight variety. 



lIAL.IPI.rS Latr. 



H. tnniidtiS. — Broadly and acutely ovate, dull yellowish red, shining; 

 prothorax punctured, more sparsely on the disc, more coarsely near the base. 

 Elytra rapidly widened from the base for one-fifth the length, then obliquely 

 rounded and narrowed to the tip; (widest part fully one-half wider than the 

 base of the prothorax); strise composed of rather coar.se punctures becoming 

 smaller behind, interspaces each with a row of small distant punctures; spots 

 narrow, pieeous, ill-defined, presenting the appearance of a sutural stripe, with 

 two oblique interrupted branches and a marginal blotch near the tip. Pro- 

 sternum coarsely punctured, perpendicularly declivous in front, deeply and 

 broadly sulcate, strongly margined at the sides, slightly convex along the 

 middle for the hinder half of its length; metasternum with a deep square 

 impression, the sides of which are elevated, sparsely and coarsely punctured, 

 coxal plates le.ss coarsely punctured. Length 3 mm. 



One specimen, Bosque Co., Texas; Belfrage. Easily known by the 

 more ventricose form and peculiar sternal impressions; the prothoracic 

 side pieces are sparsely punctured. 



XESJISTUSA n. g. (Tachyporini). 

 Antennae iufccrted at the sides of the head in front of the eyes and 

 a little inside of them; front not margined above the anteunte; the 

 latter eleven-jointed, first joint nearly as long as the three following- 

 outer joints gradually broader and transverse, last rounded at tip; 



