352 A PreUmi7iary Monograph of the 



soletely bi-impressed, very coarsely and sparsely punctate, the punc- 

 tures shallow, variolate, separated by from once to twice their own 

 widths, not appreciably larger or denser laterally. Elytra scarcely as 

 long as wide, just visibly wider and one-third longer than the prothorax, 

 strongly impressed near the suture; surface transversely rather convex, 

 feebly, coarsely rugulose, coarsely and sparsely punctate, the punctures 

 nearly as large as those of the prothorax and equally sparse. Abdomen 

 parallel, not narrower than the elytra; sides straight; border narrow, 

 moderately deep; surface feebly convex, feebly reticulate, minutely and 

 rather sparsely punctate. Legs slender. Length 2.6 mm. 



Iowa (Cedar Eapids 2). Dr. E. Brendel. 



A very coarsely and sparsely punctured species, remarkable 

 for its parallel sides and slender form; it is very distinct from 

 any other known to me. 



The type in the cabinet of Dr. Le Conte is immature. The 

 phrase ''^ prothorax not wider than long'' occurring in the 

 original description is evidently the result of an oversight. 



26 T. egregius n. sp. — Slender, slightly convex, black; legs pi- 

 ceous, the knees and tarsi paler; antennae black; pubescence fine,^ 

 short, and very sparse; integuments shining. Head slightly narrower 

 and longer than the prothorax, rather convex, somewhat coarsely, 

 feebly, and sparsely punctate, distinctly more granulose laterally; eye& 

 moderate, slightly prominent, very coarsely faceted; tempora slightly 

 shorter, rounded and rather more prominent; antennae short, about as 

 long as the head and prothorax, gradually and rather strongly clavate; 

 outer joints strongly transverse and slightly perfoliate; second nearly 

 as long as the next two together and distinctly more robust, less than 

 twice as long as wide, fourth much shorter than the third and rather 

 strongly transverse. Prothorax widest in the middle, nearly two-thirds 

 wider than long; sides very obtusely angulate, extremely feebly con- 

 vergent and very feebly arcuate in the apical half, rather strongly con- 

 vergent and straight in the basal; base very feebly arcuate, nearly 

 three-fourths as wide as the disk: apical angles obtuse, but not rounded; 

 apex broadly, feebly arcuate; disk not perceptibly impressed, but very 

 feebly, longitudinally tumid in the middle toward base, very coarsely 

 and sparsely punctate, the punctures scarcely denser toward the sides, 

 where the surface is a little more strongly reticulate. Elytra much 

 wider than long, very slightly wider and scarcely one-fourth longer 

 than the prothorax, not at all impressed near the suture, feebly sub- 

 rugulose, coarsely and sparsely punctate, the punctures subequal ia 

 size to those of the prothorax, but deeper and distinctly denser. Ab- 

 domen in the middle slightly wider than the elytra; sides parallel and 

 feebly arcuate; margin rather fine; surface finely, feebly reticulate^^ 



