"s and /iroti/eg, 

 KtT size (iC the 



fliU>. 



"' 'irst Juiiit of 



wxiiiil ciiiiriiL'- 



II' [iDsfcriiir I'x- 



•jiiiil in Icrijrtli 

 incut is iii'iirly 



t'lniractiTs. the 



//> III iptfl/lls. 



I • 'i)ni:ato pro- 

 tlic (ollowinf;- 



•tiiiiially more 



I'h el(Hll.'';,Jt..t_ 



ely truncated 



n the fourth, 



ncd to liavc 



til Mpeeimen 



tlicsc with 



ncral rcst'iu- 



rived from 



■'t'^ of but a 



Kr.KPIIANINl. 

 'TAAK.KPMINI. 



•oiisidered. 



NOKTII AMKKICAN COI.KOI'TKHA. 



io:j 



TKLKrilAKrN Kr. 



fjiint joint of nuixillary piilpi fit olilii|iii'ly. ncciiriforrn : '.lial of the liihinl \» 

 ciiiiciforiii Imt tnmciiti'il triiiisviTt'i'ly. MiuhIiIiIoh Mlmrt, rol)ii,sl unci iirciiatc. An- 

 li.'iitiiii' Viii'iiilili' ill li'iii,'lii; firs! joint loiii{ iiml fiisiforiii. rrnilmriix tt'in'iiilly 

 lonjjiT lliiin liroail, coiiHiricii'il lichind. Elytru liromler ili.in tlic [iroilioriix, siili- 

 ininillel, ii little niirrowcil mill roiinileil lieliind. LegH hIi'ikIit, nioderatply lotig; 

 iMHlcrior t'l'iiioi'ii swojii'ii : larxi jH'iitatiieroiiH ; lust joint liiloKi'il. 



Ahlioiio|i the siM'cies in Mcxieo iind Suiilh America arc numerous, we 

 liave thus far only discovered two witliin our territory. It is, liowever, 

 lilvcly tliiit otIuT.** will ho foiuid. ThcHe wpecies may he diflerentiated aw 



I'olloWH : 



Color iu'liri' i\iM yellow : lieinl liliick 1. vclox. 



( 'olor of elytra daiU lirownisli piceniH: head and |)rotliorax Uliieoloroii.j, and of 

 a dark fiH .stint... 2. I<oC'<>Illel. 



1. 'r. V<»I<»X llald. -Form eloiiiraled. Head and prothorax iqiial in width ; 

 elytra one and tliiee-foiirthf* times the length of the head and prothorax toj^ether. 

 Head hlaek, n^mainder of the lioily yellowish te.slaeeoiis. Elytra densely and 

 I'liursely piiheKeent. Head and prothorax more sparsely so; entire surface coarsely 

 and (dosely punctured. Antennae alioiit as long as elytra, darker toward the tip. 

 l''ifth ahdoininal seiiment niiich shorter than the fourth. Tarsi jmhedcent heneath. 

 T^eiiitth 4.'.' nini. 



I'late VIII, FiiT. 4. Widely dittu.M'd. 



Thi« well known and piiceful insect is very cohiumui \mder nibhi.sh of 

 various sort.**, and iis its name ini])lie.><, runs with very renuirkahle swift- 

 ness. It i.x often mistaken at first si<rht for a Caraliide from its habits and 

 liiut. The laro'e securiform joints of the palpi often protrude in front of 

 the labruui in siieh a manner as to oive the appeanince of a double horn- 

 like process. 



'.'. T. liOO'lltcl n.,sp.— l'"orni eloiiirated and moderately convex. Head nnd 

 prothor.ix modi'rately piilii'scenl : piiliesceiice i/f elytra long, moderately (lens(>, 

 and arranged in very closely aiiproximate rows. Kntire liody dark hrownish j>i- 

 ceons: heail and prothorax dark reddish testaceous, or dark f'lsciMis. Head nearly 

 ipiadrate : sides parallel, or nearly so ; iiiter-aiiteiinal groove distinct ; length from 

 ! tier to fiosterior margin slightly greater than wi<llh at the last point; densely 

 piinittiite ; eyes moderate ; antennae ahont equal in length to those of 7'. velox ; of 

 same color as head with the exception of the last joint, which is somewhat paler 

 in tint; first joint nearly equal in length to the next three together. I'rothorax 

 nearly ipiadrate : sides parallel, and almost straight for three-fifths of the length, 

 then converging moclcrately ; surface closely jainctiirod. Elytra twice as long as 

 hroad. jmuctato-striute: jiunctiires large; interspaces mudi wider than the punu- 

 lures; sides nearly parallel, and very slightly arcuate for four-fifths of the dis- 

 tance from the humeri, then togetlier somewhat acutely rounded liehind; humeral 

 angles niiher aiaite : surface shining through the pubescence: under surface of 

 body of same color as the elytra, or hut very sliglitly darker ; legs somewliat paler. 

 Abdominal segments moderate and successively decreasing in length posteriorly, 

 l.eiiirih :i.s mm. 



