TIM') i,()\(;-'r()Ki> WA'i'Ki; iM'.irrLKs. fiSl 



h. I'di'in suli(lcpr(>ss(Ml ; (lior:i\ witli sides strongly rounded, its disk 

 witli llirco <ilili(ni(' tiilitM-clcs imcIi sido of tli(^ inodinn ch.-innel. 



(KENATUS. 



///;. l''(inii el(>ii,i,'iite. nmvcx ; sides of tiiornx less nmiidnl. inori' or less 



sinuiito ;it middle. 



c. Tliorax seareely brojider nt h.ise lli;iii ;ipe\-; pnle stripe of el.vtru 



iilways entire. i:'.00. hicakinatis. 



cc. Thorax distinctly wider at base tlian apex; ])ale stripe of elytra 



biMadly interrupted at middle. l.SOl. sulcatus. 



N. liiiraris Zimui. and S. crfiiaiKs Say have both been recorded 

 from Cincinnati by Dury. 



i;500 (.".04'.)). Stenelmis nicAKiNATCs Lee, Proe. Phil. Acad. Nat. Sci., VI, 

 1852. 44. 

 Klonijate, subeylindrical. Dull black; thorax tinged with bronze; ely- 

 tra each with a rather broad yellow stripe extending from humerus seven- 

 eighths to apex ; tarsi and antennifi reddish-brown. Thorax with the sides 

 l)arallel in front of and behind the middle, scarcely broader at base than 

 aiiex; the dorsal channel .and an oblique groove each side distinct. Second 

 elytral interval distinctly but feebly carinate my.w base, the fifth carinate 

 its full lengtii ; stria- rather deeply and coarsely punctured on base, more 

 faintly near apex. Length i5..5-4 nnn. 



Speinn'r County; rare. .June LI. l)csci-il)ed rroiii Oliio. 



l.'iOl ( — ). Stenelmis stlcatls, sp nov. 



Broader, more robust and less convex than hicarinatus. Deep black; 

 elytra each with an oblong yellow spot behind humerus and a more elon- 

 gate one on apical third ; autennse and tarsi reddish-brown. Thorax finely 

 and sparsely granulate and with a deep median groove extending from 

 base three-fourths to apex, the sides of groove convergent near base; disk 

 also with two oblong oblique tubercles each side of groove, the hind one 

 separated from the latter by an oblique depression. Elytra with second 

 interval elevated on basal third, fifth carinate its full length; strite coarsely, 

 shallowly and rather closely punctate. Length 3.5 mm. 



Lake Maxinkuckee. ?ilarshall C(niiity: frequent. October 2(). 

 Speciiiiciis were sent nie by If. Walton Clark, of tlie V. S. Fish Ct)ni- 

 niission. who repoi-ted it as ''ai)|)arently speudino:: its life in the 

 intervals of Ihc marly orowlh on iimkkcIs, etc.. at the bottom of the 

 lake, and can nsually be ])roctn-ed in lunnbers by examining the 

 concretions of marl.'' Fnmi the descriptions I at first thought it 

 to be qundrimarulatus Horn, but comparison with cotypes of the 

 latter at Cambridge, shows the scul])tiu-e of thorax to be AvhoUy 

 different. Several unnamed specimens of suhatiis from New York 

 were in the Cambridge collection. 



