184 DESCRIPTIONS OF AND OBSERVATIONS ON 



67. E. commimis, Schonherr, is much like the preceding, but the 

 thorax is canaliculate. 



68. E. i7isij)iens, S. (Ann. Lye. N. Y., I., p. 267.). The fissure in 

 the posterior margin of the thorax, near the spines, is distinct. 



69. E. recHcol/is, S. (Journ. Acad. Nat. Sc.,III.,p. 168.).* 

 Distinguished from the preceding species by the lobed joints of the 



tarsi. In those species the joints have projecting hairs beneath, but 

 not lobes. The clypeus descends rather low, and is almost rectangular 

 at tip. 



70. E. quietus. Black ; antennae and labrum rufous ; palpi and 

 feet pale yellow. — Inhab. Indiana. 



Body black-brown ; sericeous with short, yellowish hairs; slender; 

 with numerous, minute, but not close set pui.ietures : cbjpeus very ob- 

 tusely angulatcd in front, almost rounded : antennx rufous, not serrate ; 

 first joint rather long, and a little arcuated ; second and third joints 

 subequal, the second rather longer and more robust: labrum rufous? 

 prominent : thorax rectilinear on the lateral edge from near the ante- 



tracted near the spines; spines rather short and somewhat obtuse, sub-bicarinate ; basal mar- 

 gin, near the lateral spines, with a distinct fissure: elytra with punctured striae, and depressed, 

 minutely punctured interstitial lines; suture somewhat paler: /ee^ dull rufous: tarsi beneath 

 with rather dense hairs: nails pectinaled. — Length over half an inch. 



The thoracic fissures readily distinguish this species. I formerly marked it in my cabinet 

 interrogatively as the brevicollis, Herbst; but it can hardly be that species, as no notice is 

 taken of the fissures. Can it be the cinereus, Weber ? 



* [The following description, which was marked to be omitted by Mr Say, contains se- 

 veral characters not laid down in the Journal of the Acad. Nat. Sciences on the page above 

 quoted. It seems to apply rather to a variety of the recticollis that was proposed originally 

 by Mr Say as a distinct species, under the name of E. inscius, but was subsequently referred 

 to the previously described E. recticollis. For the reasons above stated, it may be useful to 

 insert the rejected description in this place. T. AV. H.] 



E. recticollis (insciics, S., MSS.). Brown ; clypeus subangulated before ; suture dusky. — 

 Inhab. Indiana. 



Body light brown, somewhat sericeous, with yellowish hairs, and with numerous minute 

 punctures: clypeus but little elevated, tip obtusely angulated: antennse hardly serrate, pale 

 rufous; first joint rather long, arcuated, robust; second and third joints subequal: head dusky: 

 thorax dusky on the middle; lateral edge nearly rectilinear, arcuated at the anterior angles, 

 and a little excurved at the spines ; not elongated ; spines acute, not carinate ; posterior edge 

 with a fissure from which a line extends forward upon the margin : elytra with punctured 

 striae and minute punctures on the interstitial lines ; sutural margin dusky: beneath piceous : 

 pectus honey-yellow : feet honey-yellow : tarsi, third and fourth joints Jobed beneath. — 

 Length less than one- fourth of an inch. 



