OF Till'. I SUED STATES. I'.li! 



lateribus parallelis apice rotundatis, sat dense pn isi angostatis, api natis, sat 



dense punctatis, vix obsoletissime striatis. Long. 1*10. 



1 term. Zeitschr. 5, 183. 



Pristilophis? sordidua Mels. Proc. A.cad. x - . - . 2, 216. 



Southern States, oot common. It is 3trange thai Germar should nol have recognised 

 the relation with certain species placed by him in Pristilophus. The resemblance in the 

 form of the thorax gives tlie insect somewhat the appearance of a gigantic Dolopius. 



Mi.i.w M i bs /. 

 Frons i rotnndata, vix marginata; anti rata), articulo 2 nd * pan 



paulo longiore non tlilatato, ll mo non maiore nstricto: labrum antioe rotundatum: mandil 



breves, apicc acuta, pone apioem unidentatm; palpi articnlo ultimo non e triangnlari: ■ 



num eloDgatnm, antice longius lobatum, postice fortius mncronatnm, mncrone oompr 

 lateribus recti.-*, sutura antice panlo excavata: mesosternnm atrinqae prominalam : 

 minis angustis inl im paulo dilatatis : tarsi medio 



le breviter spongioso-pubescentesj articulis 1 — 4 ia lia 



simplicibus. 



These are large, shining, black insects, forming the first division of the genus Pristilo- 

 phus, as defined by Germar, (Zeitschr. 1, 82.) Notwithstanding the care taken l>\ the 

 author, the description of the genus fails entirely when applied to the 3p< i ics here alluded 

 to, since they belong to a totally different group of Elaters, from that in which Pristilophus 

 was placed : the tarsi, indeed, so far from being uniformly pubescent above and below, as 

 in Corymbites, arc thinly pubescent above, and furnished with a ver) dense brush beneath, 

 as in Alaus: the peculiarity in the form of the mesosternum was pointed oul by Germar, 

 and was, in fact, the character upon which he nrranged In- Bpecies in i»o divisions. 

 The thorax in all the -;> cies is strongly margined: the base is without an) fissure and 

 i- bidentate in the mid lie: the posterior angh a are carinat* d. 



\ the characters of thi impletely al variance with i lt> >-•■ laid down for 



Pristilophus both l>\ Latreille and Germar, it would obviously be absurd to retain the 

 nan u- for the* species here included, even if, after examination, we have found it nec< ssan 

 to place the remainder of ( Jermar's Pristilophus in Corymbi 



1. M. procerus, id medio 



datis ibtilius | i 



punctatis, I. ' 



specimen, from Mr. Hentz' collection ; Prof. Ilaldcman. This bl< in 



characters ML pic< us, bul the difference in the form of the thorax is v< r) gn at. The tho- 

 rax is a little wider than long, ver) slightl) ily rounded <>n the Bid* . 

 as 1 ler at the middle than immediately at tli , which thus app 

 to diverge more 3trongl) than in the oi the punctun • in M. piceus, 

 small, and mon i the mi Idle of I 



dors il line behind the mi Id I dightly < om pressed on the Bid* - I" hind the 



: they are pun I id as in t >f punc- 



tures an- m »re distinct. B lum and inflexi >\ pari of ll irax are 



rsely punctured: the in last rmirn i i in the middle, • and fii 



