"372 A Preliminary Monogra2)h of the 



rate, shallow; surface finely and moderately reticulate, minutely and 

 not very densely punctate. Legs slender, normal. Length 1.9 mm. 



Texas (Waco 1). 



Easily distinguishable from hipuncticollis , to which it is allied, 

 %y its larger size, slightly more robust form, more robust an- 

 tennae, sparser pronotal punctuation, and by the presence of a 

 long, wide, and slightly tumid, median impunctate line. 



50 T. bipuncticolli§ n. sp. — Very slender, rather convex, piceous- 

 black; legs pale brown; antennae fuscous; pubescence extremely short, 

 fine, moderately dense, sparse on the elytra; integuments distinctly 

 shining. Head very slightly narrower than the prothorax, rather con- 

 vex, very minutely, densely punctate and subgranulose; prominences 

 small and feeble; eyes moderate, somewhat convex and slightly promi- 

 nent; antennae very short and slender, feebly incrassate, much shorter 

 than the head and prothorax; second joint fully as long as the next two 

 together, and decidedly more robust, fourth scarcely as long as wide, 

 tenth rather strongly transverse. Prothorax one-sixth wider than long; 

 sides convergent from apex to base, rather strongly and nearly evenly 

 arcuate; base feebly arcuate, nearly four-fifths as wide as the apex, 

 which is broadly, feebly arcuate; apical angles not distinctly rounded, 

 basal rather broadly so; disk evenly convex, not impressed, very mi- 

 nutely and densely punctate; the punctures separated by about their own 

 widths, sparse in the median line toward apex, but not toward base; 

 median line not tumid. Elytra quadrate, very slightly wider and 

 nearly one-third longer than the prothorax, strongly impressed near 

 the suture except near the apex, rather finely and not very densely 

 punctate; punctures more than twice as wide as those of the pronotum, 

 separated by distinctly more than their own widths. Abdomen long, 

 linear, slightly narrower than the elytra; sides straight; border rather 

 narrow; surface finely reticulate, minutely and not very densely punc- 

 tate. Legs slender; femora, especially the anterior, compressed. Length 

 1.6 mm. 



Texas (Waco 2). 



Just behind the middle of the pronotum there are two small 

 feeble impressed punctures, arranged transversely and separated 

 by between one-fifth and one-sixth the total width. These 

 punctures are setigerous and may be peculiar to a large part of 

 the genus, at least they are easily observable in some of the 

 species of this group, and notably in languiduSf facetus, and 

 rolustulus. 



We arrive here at a minor group in which the species are 



