Till': i'i;i:i> \<'i:()rs divinc r.i'irii i;s. 



220 



447 ( ). HiiANTis coNFisrs sp. nov. 



Kl(iiiir:ito-ovMl. VMtlitM- vdbnsl. suhdciiri sscd. Almvi' iiiii- 

 fdnii lihicl;. sliiiiiim: ;int(Miii;i' and pnlpi lii-'Iil rcddisli 

 lirowii; tibia' :iiid tarsi daric i-cddisii-liiN.w n ; imdcr siii- 

 tace piceous. Ih*ad siudoiii. Ihc IrdHi with two siiiai! 

 love;!? between the bases of aiUeniia'. 'Pliorax more tliaii 

 Iwice as wide as Ions, sides feel)ly cui'vihI. niar^ins dis- 

 linri : surfai'c with sparse line pniirtnrcs near liir frdnl 

 and hind iiiar.irins. Kly(i-a eadi witli Wmv duuiple rows 

 <i|' line, wvy conrnscd punctures, rrostcrninn cdnvex but / 

 not ilistinctly carinati' aloiii,' the niiddh\ l.enutli 12 mni. 

 (FiS. -iU.) 



F\<>\i\ Coiiiily: r;tiT. Scpl 'iiilxM' 2S. I)('sei'il)ed (Vdiii a siti,d-le 

 male taken from lieneatli a stone on the sliore of the Ohio Kiver. 

 I'luler a strotiii' lens the entire nppei- snrfaeo of ])()th this and J)ls- 

 Iriahis- is seen to lie maj'ked willi vei'v (iiu' ridieiilalcd lines helweeii 

 wliieli are numerous exceedingly mintile piinetiires. divin"' it the ap- 

 pearance of being alntaceons. 



tig. 113. X 2J. 

 (Original.) 



XN'Iir. (\ii.vjrBKTi:s (Mairv. 1S()(i. (dr.. "dive ! swim.") 



iiatlier lai-d-e eloiidale hectics having the sides of thorax ()l)li<|nc. 

 not mai'dined; scnlcllnm ]Minctatc; elytra with very fine transverse 

 stria'. The males have the anal scgmr'nt triangularly emarginate 

 and joints 2 and 8 of front and middle larsi (dothcd. with small 

 e(|nal disks. (>ne species occurs in Indiana, 

 lis ( 14T4K ("oi.vMBETES scuLPTius Ilarr.. X. Eng. Far., 1829, S. 



Elongate-oval. Vertex black with two small paler spots ; 

 thorax, front of head and margins of elytra dull yellow, 

 the thorax with n black transverse diseal bar; disk of 

 elytra darker: under surfac(> black, legs and hind mai"- 

 gins of abdonnnal segments reddisli-brdw n. r>ength 1<! nun. 

 (Fig. 114.) 



Occurs sparingly along the shore of Lake .Michi- 

 gan; not noted elsewhere luit should occur. ]May 

 ."i'l;- ";^ M 'S 5-June 2(). 



(After W icliliaiii.) 



'Ifilie 111. DV'riSClXI. 



l)i\iiig hectics of large or medinm size, easily tlistingnislictl by 

 the peculiar dilated form of the ffut tarsi of the males. In these 

 the first three joints form ;i circular ciishioti with small disks on the 

 nnd(M' side. The middle tarsi are also lre(|iiently dilated, the joints 

 being oblong witli varionsl\ arranged ilisks or suckers b(-neath. 

 Sonu'times. as in Acilius, there are three wt'll-marked sizes of disks 

 on the same fool. The tribe is represented in the United States by 

 six genera, five of which occur in Truliana. ' 



