342 A Preliminary Monograph of the 



immaturity and shrinkage of the integuments, as it is equally 

 evident in several specimens of caloderinus and in one of difficili^ 

 which I have before me. The general outline and punctuation — 

 which are the only characters remaining for comparison — corre- 

 spond entirely with quadripunctatus, 



15. T. conjunctui n. sp.— Rather robust, black; legs black; knees 

 and tarsi slightly paler; antennae throughout and palpi black; pubes- 

 cence rather short, fine, and sparse; integuments shining. Head four- 

 fifths as wide as the prothorax, feebly convex, finely, densely punctate; 

 prominences rather large and feeble; antennae very slightly longer than 

 the head and prothorax, rather robust, gradually and moderately incras- 

 sate from the second joint; two to four uniformly and rapidly decreas- 

 ing in length, the latter distinctly elongate, tenth slightly longer than 

 wide; eyes large, coarsely faceted, slightly prominent; tempora one- 

 third as long, strongly rounded throughout to the neck. Prothorax one- 

 half wider than long, widest just behind apical third, where the sides 

 are rather strongly rounded, thence strongly convergent and straight 

 to the base, and slightly less strongly convergent and very feebly 

 arcuate to the apical angles, which are obtuse and not rounded; basal 

 angles obtuse, very narrowly rounded; base feebly arcuate, a little more 

 than two-thirds as wide as the disk, distinctly narrower than the apex; 

 the latter transversely truncate; disk rather finely, densely punctate, 

 the surface finely granulose and subopaque toward the sides, with the 

 punctures much larger, but not much closer; median impressions mode- 

 rate or rather feeble; surface also distinctly impressed at each side in 

 the middle and very near the edge. Elytra quadrate, nearly one- 

 fourth wider and one-half longer than the prothorax, feebly impressed 

 along the suture, rather coarsely and sparsely punctate, the punctures 

 separated by fully twice their own widths. Abdomen broad, very 

 slightly narrower than the elytra, parallel; sides feebly arcuate; border 

 thick and rather shallow; surface feebly convex, minutely granulose, 

 shining, minutely and not very densely punctate. Legs slender. 

 Length, 3.0 mm. 



• Oregon 1. Mr. 0. Lugger. 



A comparatively large species, related to quadripunctatus , but 

 differing in its smaller eyes, denser, coarser, pronotal punctua- 

 tion, which is also more scabrous toward the sides, its finer 

 elytral punctuation, and finer, denser abdominal pubescence. 



16. T, morio Er. — Gen. Staph., p. 805.— Moderately robust, black; 

 legs piceous-brown, tibiae especially toward apex and tarsi paler; an- 

 tennae piceous, rufo-piceous toward base; pubescence very short, but 

 rather coarse and sparse, not conspicuous; integuments polished. 



