MEGAPENTIIES. ^00 



diness is seen on!y on llie margins of lliis spot , vvhioli is also 

 very indistinct. 



Les espèces suivantes sont voisines du M. riiJUabris : 



2. M. PROTERVUS. Elongatus , ater , nitidus , cinereo-pubescens , 

 fhorace lalifndinc lonrjiore , antrorsum a basi pmdo angus- 

 talo , laleribus paritm rotundatis , sal dense jmnctato , ebjlris 

 parallclis basi amjuste et cpipleuris sangiiineis , stri/'s punc- 

 tatis, inlerstitiis siibconvexis , rugose piinctatis , anlennis piccis, 

 arliculo ù° S""^" puulo majore , tarsis rufo-piceis. — Long. 4'". 



Elater pro(ervus. Lec. Rev. Elat. Un. St. in Jm. phil. soc. Trans. X , new 

 ser. p. 471, 53. 



Lake Superior. It is difficuU to détermine wlielher ihis should 

 not be considered as E. semicinctus KamhW {Bost.Joiirn. Nat. 

 Hist. II, 10;) but the expression « body considerabiy dila- 

 ted » coupled wiiith ibe observation ihat « it seems most 

 nearly allied to E. discoideus » bas induced me to refer Ilan- 

 dall's description to n" 8 of tbis genus (E. semicinctus Rand.) 

 above described. Tbe tborax in tbis species is k^ss nariowed 

 in front tban usual ; tbe elytra are also parallei beyond tbe 

 middle , tben gradually narrowed to tbe lip. 



5. M. STiGMOsus. Elongatus , ater , cinereo-pubescens, thorace 

 latitudine longiore antrorsum subanguslato , lateribui anlice 

 sîibrotundalis , sat dentée punclato , postice obsolète canalicu'aio, 

 ebjlris macula haniata basali , humerum includcnte , alleraque 

 utrinque transversa porte médium flavis , striis punctiilatis , 

 inter^titiis plants rugose punctatis , pedibu^ antennarumque ba>i 

 testaceis hi; articnlis 2 et ô œquaUbui. — Long. 2 i/ic" -2 1/?'''. 



Elciler sllfjmosus. Lie. loc. cit. p. -472 , 36. 



Lake Superior , two spécimens. A very distinct and preity 

 species ; tbe ycllow spots of tbe elytra are arranged in tbe 

 following manner : a bne from tbe middle of tbe base follows 

 allong ibc fourlb interstice for onc-ibird tbe Icnglb of iIîc 

 elytra ; it ibcre nieots a broadcr line running obliquely in- 



