NORTH AMERICAN COLEOPTERA. 103 



The punctures of the intervals near the sides and apex bear very 

 short yellowish hairs, and it is probable that those of the disc are 

 similarly provided in recent specimens. This species resembles 

 Psammodhis luuins in form, but is even more robust and convex. It 

 is even smaller than any of the specimens of that species seen by me 

 from our fauna, and is therefore the smallest Scarabajide known to 

 me. 



Occurs in Washington Territory ; one specimen kindly given me 

 by Mr. L. E. Ricksecker. 



^¥1. eonftrta Horn.— Oblonj;, slifilitly broader behind, convex, pieeous black, 

 elytra sometimes reddish brown. AntennsE rufotestaceous. Head coarsely and 

 rather closely verrucose. ypeus subtruncate and very feebly emarjjinate at 

 middle, on each side arcuate, the margin narrowly reflexed. Thorax twice as 

 wide as long, narrower in front, anterior angles not acute in front, sides moder- 

 ately arcuate, hind angles very obtuse, base arcuate, marginal line distinct, lateral 

 and basal margins not crenate, disc convex, a slight depression at the front angles, 

 a fovea at middle of declivity, median line very vaguely impressed posteriorly, 

 surface sparsely irregularly punctate, a smooth space at the hind angles. Elytra 

 as wide at base as the thorax, slightly broader behind, humeri obtuse, the striiB 

 moderately deep, the punctures moderately fine and not crenate, intervals flat, 

 smooth. Mesdsternum opaque, punctate, not carinate between the coxte. Meta- 

 sternum slightly rugose at sides. Abdomen with few, coarse, irregularly placed 

 punctures. Posterior femora oval, a row of setigerous punctures near the knee, 

 the tibiae stout, the outer edge rauricate and with two indistinct oblique ridges, 

 the spurs short, broadly expanded, obtuse at tip, the margins translucent. Length 

 .14-. IS inch ; 3.5-4.5 mm. 



This species varies in the manner indicated for cylindrica. The 

 posterior tibise are much stouter than the species which precede, but 

 less so than crassa, the apex being less in length than half the length 

 of the outer side of the tibia. The sculpture of thorax approaches 

 more nearly to Blanchardi, but the form of the hind tibia and its 

 spurs will readily distinguish it from this. 



Seems to be more widely diffused than any of the other species. 

 Specimens in my cabinet are from Illinois and Washington Terri- 

 tory ; others in the LeConte cabinet from Georgia. 



^E. Iati!<«l>iiia Lee— Oblong oval, moderately robust, a little broader l)ehind, 

 pieeous, shining, legs brownish. Anteunffi and palpi pale. Head coarsely and 

 closely verrucose. Clypeus subtruncate, the margin narrowly reflexed, the sides 

 arcuate with a slight notch at end of frontal suture, gensi? more distinct than 

 usual. Thorax nearly twice as wide as long, narrower in front, the front angles 

 not prominent anteriorly, sides arcuate, the margin not crenate, hind angles ob- 

 tusely rounded, the ba.se arcuate, without basal marginal line, disc convex, a 

 slight depression at front angles, a fovea at middle of declivity, disc coarsely 

 rather sparsely punctured, a smooth space at hind angles. Elytra as wide at base 



