PLATYNIN.E ']\ 



gradually converging and feebly sinuate in about basal half, the 

 angles barely more than right but rounded at tip; base transverse, 

 much narrower than the broadly sinuate apex, the apical angles 

 well defined and somewhat prominent; surface with very minute 

 and sparse punctures, each bearing a short pale hair, the transverse 

 impressions obsolete, the stria very fine, not quite entire; fovese 

 very shallow, traceable about to the middle, finely punctulate; 

 elytra three-fifths longer than wide, a little more than twice as wide 

 as the prothorax, rather wider behind the middle than at base, 

 gradually rounding behind, with feeble sinus, the sides anteriorly 

 nearly straight, very finely reflexed, gradually rounding basally; 

 striae fine, sharply defined, with extremely minute close punctu- 

 lation; intervals flat, the third with three punctures, all near the 

 third stria; met-episterna twice as long as wide; legs slender, the 

 tarsi with fine external sulci, the claws unusually small. Length 

 (9) 7.2 mm.; width 2.5 mm. Alabama (Salco), — Loding. 



quadrimaculatus Horn 



This singular species can readily be considered intermediate 

 between the usual types of Anchomenus and Anchus pusilhis, of 

 LeConte, which I think should form a subgenus coming immediately 

 after Deralanchus. 



Macragonum n. gen. 

 The type of this genus, having the tarsi densely pubescent 

 beneath, might be assigned to the composite Colpodes in the Chau- 

 doirian sense, but the fourth joint is symmetrically emarginate, 

 though rather deeply so on the anterior. In general aspect it does 

 not resemble any form of Anchomenus or of Agonum, the general 

 outline, broadly and evenly rounded basal thoracic angles and 

 elongate third antennal joint, being more remindful of Platynidius 

 than any other generic group; but the very convex surface and 

 absence of the posterior marginal puncture of the pronotum, prevent 

 its assignment to that genus; the anterior marginal puncture is 

 barely before the middle of the length; both superciliary punctures 

 are distinct. The mentum tooth is very broadly triangular and 

 the met-episterna are short, not longer than wide. The type may 

 be described as follows : 



Body elongate, rather narrow, strongly convex, polished black; legs 

 black, the anterior male tarsi dark brown, moderately dilated, 

 parallel; head slightly elongate, not quite three-fourths as wide as 

 the prothorax, with moderate though somewhat prominent eyes; 

 anterior impressions coarse, deep and parallel; palpi piceous, of the 

 usual structure; antennae long, slender, piceous, rather more than 



