Coleopterological Notices, V. 319 



tibiae, with the first joint greatly elongate ; ungues small, slender, 

 arcuate, simple and divergent. 



Microdonia belongs evidently to the subgroup Myrmedoniates of 

 Rey, as shown by general organization and by the great develop- 

 ment of the metasternal epimera, but is immediately distinguishable 

 from any of the genera known to me by the small parallel and de- 

 pressed body, subtriangular head, complete absence of infraocular 

 carina and many other characters. 



M. occipitalis n. sp. — Reddish-brown, the elytra paler, more flavate : 

 abdomen with a large blackish cloud occupying segments three, four, the 

 apex of two and base of five ; anterior parts dull, the abdomen shining. Head 

 subtriangular, rather coarsely, densely, evenly punctate, the punctures round, 

 very shallow, distinctly defined but variolate and slightly umbilicate ; antenufe 

 rather longer than the prothorax and elytra, second joint longer than the 

 third, the latter strongly obconical, one-half longer than wide, outer joints 

 transverse and perfoliate, the tenth fully one-half wider than long, eleventh 

 nearly as long as the preceding three, conoidal, compressed. Pi^pthorax dis- 

 tinctly wider than the head, punctured like the latter, two-fifths wider than 

 long, the sides very feebly convergent from near the apex to the base and 

 very nearly straight ; base broadly, evenly arcuate ; basal angles obtuse and 

 slightly blunt ; disk broadly impressed toward each side except anteriorly, 

 also in the middle before the scutellum. Elytra just visibly longer but dis- 

 tinctly wider than the prothorax, rectangular, nearly one-half wider than 

 long, flat, more finely and rather less densely punctate. Abdomen as long as 

 the remainder of the body, slightly narrower than the elytra, parallel and 

 straight at the sides, feebly convex, the border strong ; punctures fine, rather 

 distinct, somewhat close though veiy sparse toward tip. Length 2.3 mm. ; 

 width 0.6 mm. 



Texas (Austin). 



The pubescence of the anterior parts of the upper surface is very 

 minute, stiff, recumbent and rather dense but not conspicuous, of 

 the abdomen sparser but longer and more visible. A single speci- 

 men, perhaps somewhat immature; the singular impressions near 

 the sides of the pronotum are however probably normal. 



DINOCORYNA n. gen. 



Parallel, rather stout. Head well inserted, nearly as in Myrme- 

 donia, the eyes well developed, the tempora rapidly convergent 

 behind them ; infralateral carina wholly obsolete. Antennae stout, 

 the first joint very large, robust, constricted at base, as long as the 

 next three ; second very small, barely longer than wide, as long as 



