190 J. L. LECONTE, M, D. 



Clifton, Texas; one specimen, found by Mr. G. W. Belfrage, under 

 a stone, in a wet sandy place. This very pretty little insect is closely 

 allied to Glymma of Europe, but differs by the antennal cavities on 

 the flanks of the prothorax, under and not upon the front angles, 

 the smaller number and less development of the costte; by the front 

 tibiae being distinctly angulated on the outer side, and especially by 

 the absence of the peculiar foveate sculpture of the under surface as 

 represented by Marseul, Ann. Ent. Fr. 1856, pi. 11, xxxix. 



HISTER Linn. 



H. (Psiloscelis) perpnnctatus. — Oblong, opake black, finely and densely- 

 punctured, punctures at the sides of the prothorax and on the elytra somewhat 

 larger; elytral strise very fine, three inner ones scarcely apparent. Beneath 

 strongly punctured at the sides, smooth, and somewhat shining at the middle. 

 Prosternum rounded behind and not at all margined. Length 6.5 mm. 



Tyngsborough, Mass.; Mr. F. Blanchard; found with a brown aut 

 4.5 mm. long. Smaller and more convex than H. planipes, and easily 

 known by the finer and denser punctuation, the obliterated inner striae, 

 the under surface nearly smooth except at the sides, and the pro- 

 sternum not at all margined behind. Hetserius Blanchardi occurs 

 with the same ant. 



H. tornatas. — Cylindrical, stout, black, very shining; head flat, finely 

 punctulate, frontal stria heraihexagonal ; prothorax very slightly punctulate, 

 marginal stria deeper near the front angles, ambient in front; outer marginal 

 very near the lateral bead, a little abbreviated behind. Elytra with extremely 

 faint and fine strife, which seem to be entire in type, though barely visible, the 

 outer ones are a little less obliterated; humeral stria oblique, distinct; epipleurae 

 bistriate. Propygidium and pygidium convex, sparsely finely punctured. Front 

 tibiae very broad obtusely 3-dentate, tarsal groove distinct, straight ; other tibiae 

 not toothed, with two rows of spines as usual. Beneath very slightly punctured. 

 Prosternum without strise, anterior lobe very prominent; mesosternum truncate 

 in front, marginal line entire. Length 4.4 mm. 



Indian River, Florida; one specimen, found by Mr. A. Bolter, to 

 whose liberality I am greatly indebted for it. Stouter than the cylin- 

 drical forms of Platysoma^ which it resembles in appearance, though 

 belonging to the typical division of the genus. It is, in fact, more 

 allied to the americamis group than to any other. 



ABR^US Leach. 

 A. Bolteri. — Convex oval, brown, moderately shining; head scarcely per- 

 ceptibly punctulate. Prothorax finely punctulate, without basal line, base 

 obtusely angulate at the middle. Scutellum invisible. Elytra moderately 

 punctured, punctures finer and somewhat rugose behind; oblique rudiments 

 of striae near the base feeble ; epipleurae broad punctured, with a distinct lateral 

 stria abbreviated in front. Pygidium smooth, not infiexed. Beneath somewhat 

 coarsely but not strongly punctured especially towards the sides; prosternum 



