27 



the four first joints of the nntcnnrc are <-upreoiis ; prothorax not wider than 

 the hcafl, continently and thickly pumtiired : discoidal elevations not con- 

 spicuous nor impressed ; elytra not glossy, punctured with scattered punc- 

 tures, marked hy a (juadruj)le series of very slight impressions, some nearly 

 obsolete, most of .hem marked out hy a very slight elevated ring and a 

 circle of punctures, three levigated (juadrangular space: near the suture, 

 and arranged in a line j)arallel with it, and a fourth triangular one removed 

 from it, near tlie apex ; the disk of the elytra is fainti/ ,niri)le : lei;s 

 hronzetl. 



91. NcvrjoPHii.us AQi'ATici's, LhuL — One specimen taken. [An erro- 

 neous determination, according to Dr. I.eConte, who considers it to he 

 iV. seinisiriatus - "Sa)- . For description, which very <'losely corresponds 

 with Kirby's, -v//^- .Says Knt. Works, ii. 497] 



[65] 92. O.Moi'HRoN .Sa\(, Kirby. Taken by Dr. Higsby in Canada. 

 Length of body 3 |j lines. 



This si.)ecics seems intermediate between O. litnbatuin and O. labialmn. 

 Irom the fcmier it dififers in having a much fainter tint of green on the 

 darker jjarls of the body, in its black iirothorax with silvery sides as well 

 as margin ; from the latter, in having the lateral furrows as deep and 

 distinctly punctured as those of the disk ; and, instead of two reddish s|)ots 

 near the l>ase of the el}tra, having two angulato-undulated bands, one 

 near the base and the other beyond the middle, and the tips testaceous , 

 all connected by tJie margin of the same colour. It seems to have escai)ed 

 the describers of O. Hmhatu>n that the upper-lij) and lateral margin of the 

 jirothorax and elytra are likewise silvery, though not so conspicuously as 

 in O. liibiatiiin and Sayi. 



The sculpture of the elytra in this genus, as well as in Cahsoftia, difters 

 from that of the other terrestrial predaceous beetles in having more than 

 nine furrows, which api)ears to be the typical number in the section. — 

 [.Synonymous with O. Aincricaniim, Dej. ; taken in many parts of Canada.] 



[A'//// ^'/" ///r Cauaimd.k] 



FAMILY UAl.IPMD.T",. 



[This family- usually regarded as a sub-flunily of the Dytisculic^ is 

 restricted by I-eConte to the genera Haliplns and Cuemidotus ; but Kirby. 

 as will be ol>served, includes it in the genera J/yiirojHynis and Laccopfnlus.\ 



