MISCELLANEOUS NOTES AND NEW SPECIES 373 



The single type is rather dilapidated but can be seen to differ 

 specifically from piceus in its larger, more elongate and deeply and 

 coarsely sculptured elytra and much less arcuate mandibles; 

 unfortunately the legs are missing in the type, which was very 

 kindly given me by Prof. Wirt Robinson, of West Point. 



So far as known to me, the following species does not closely 

 resemble any of those hitherto described in Platycerus Geoff., hav- 

 ing a relatively much broader prothorax: 



Platycerus laticollis n. sp. Hind body rather narrow, the color pale 

 and uniform red-brown throughout the body and legs, the head darker 

 basally, moderately shining, glabrous; head small, distinctly less than 

 half as wide as the prothorax, the sides before the eyes obtusely subangu- 

 late and much more prominent than the latter, thence evenly oblique 

 to the obtusely angulate and anteriorly prominent limits of the epistoma, 

 the latter broadly, rather deeply sinuate; mandibles very small, stout, 

 acute at tip and not dentate within; antennae with the stem slender, sub- 

 glabrous, the club stout, parallel, 3-jointed, densely clothed with minute 

 gray pubescence and barely as long as the basal joint of the stem; pro- 

 thorax four-fifths wider than long, the sides prominently rounded dis- 

 tinctly behind the middle, thence broadly arcuate to the obtusely rounded 

 moderately advanced apical angles and more rapidly converging and 

 straighter to the basal angles, which are right and not rounded, the sides 

 just before them feebly sinuate for a very short distance; base transverse, 

 a third wider than the sinuate apex; surface broadly deplanate at the 

 sides, less broadly and more concavely basally; punctures rather strong, 

 well separated, close apically and on the lateral convex slopes, coarser 

 on the deplanate sides; elytra more than one-half longer than wide, much 

 narrower than the prothorax, parallel, evenly rounded at apex, the 

 punctures moderate, close-set in unimpressed series, which are alter- 

 nately more widely and narrowly separated toward the suture, with the 

 broader intervals flat, the narrower slightly convex, the former closely 

 and confusedly punctate, the latter more finely and uniseriately ; toward 

 the sides the surface is smoother and the punctuation more even; humeral 

 angles obtuse, not prominent; anterior face of the anterior tibiae not at all 

 punctate except at apex and having, behind the middle, a rounded and 

 densely, decumbently golden-pubescent area; legs rather slender, the 

 tarsi filiform, the posterior four-fifths as long as the tibiae. Length 9.3 

 mm. ; width of elytral base 3.0 mm. ; width of prothorax 3.65 mm. Oregon 

 (Mary's Peak). 



The single example, which is probably male, belongs to the 

 agassizi series, but differs in its much sparser sculpture, wide and 

 laterally deplanate prothorax, basally much stouter mandibles and 

 in its pale coloration and small size. 



I have recently received an example of californicus Csy., taken by 

 Mr. Nunenmacher in Josephine Co., Oregon; it agrees very well 



