130 Trans. Acad. Sci. of St. Louis. 



as wide, the sides parallel, the basal angles distinctly rounded; eyes 

 larger, at one-half more than their own length from the base, the 

 punctures relatively coarse and less sparse; antennae similar; prothorax 

 distinctly more elongate, wider than the head, the sides more nearly 

 parallel, straight, the punctures coarser, rather sparse, the medial series 

 similarly impressed; elytra much larger, distinctly elongate, two-fifths 

 wider and a third longer than the prothorax, the sides straight and 

 feebly diverging, the punctures fine and feeble, more close-set, the 

 series very uneven and ill-defined. Male with the surface of the fifth 

 and sixth ventrals wholly unmodified throughout, the latter not im- 

 pressed at tip, the apex rather narrow, with a gradually formed sub- 

 triangular sinus, one-fourth as wide as the tip, distinctly wider than 

 deep, with the bottom angle obtuse. Length 3.8 mm. ; width 0.7 mm. 

 Mississippi (Vicksburg) and Indiana (Cab. Levette) .. ..leviceps n. sp. 



The male of analis, from Morgan City, has the shallow 

 cuspidiform emargination of the sixth ventral rather deeper, 

 more abruptly formed or more triangular than the Texas 

 males, and the eyes are a trifle smaller, but there are no other 

 tangible differences. 



Paralathra n. gen. 



This genus is somewhat composite, for, with a general 

 habitus which is not very distinctive and suggestive of Lath- 

 rotaxis, it has the gular sutures of Lathrobiella and the hind 

 tarsi somewhat as in Lathrotaxis, from which it differs in 

 in the form of the gular sutures, densely punctate and dull 

 abdomen and narrower neck. The general surface is decid- 

 edly more convex than in Pseudolathra , the latter also hav- 

 ing the gular sutures much more widely separated at base or 

 more strongly divergent. I am compelled therefore to 

 regard the single species as a distinct genus ; it may be 

 described as follows : — 



Body rather stout, parallel, polished, the abdomen dull, pale and bright 

 rufous in color, the head darkrufo-piceous, the abdomen infuscate, be- 

 coming rufescent at tip, the legs and antennae pale; head rather well 

 developed, somewhat wider than long, parallel and nearly straight at 

 the sides, truncate at base, with the angles distinctly rounded; eyes 

 large and well developed but feebly convex, at about a third more than 

 their own length from the base,' the punctures extremely sparse, not 

 very coarse ; antennae nearly half as long as the body, slender, feebly 

 incrassate distally, the medial joints not quite twice as long as wide; 



