TiiK c\ACK i!i:i"n.Kfs. 747 



Kcsciiisko. Viii'o. Orniigc jiiid Pnsoy coiiiilics; rrc(|iici!t. .M;i\' 

 :!1 •liiiic T). This speeios occui's in (-(tllcclions under the iiiinic corli- 

 liinis. hut is vei'v distiiu'r in size, h'lijiith of male antcnn-.e ;in(l 

 punetujiticii cf thoi-jix. IVoin 1h;il s])e('ies as jihove described. 



1411 (4:!;5r)). Mei^vnotis americant\s Ilbst., K;ifer, ]0, ISOC. 74. 

 El«iiiir;ite-ol)long, sleiuliM-. Dull roddisli-brown, sparsely puhescout with 



icra.visli liairs. Second and third joints of antenna* short. snhe(|nal, tojj;ether 

 about equal to fourth. Thorax not loii.ijer than wide, distindly narrower 

 at aiu<x than base, sides feebly roundod on apieal half; disk linely and 

 sparsely punctate, with a laint median impression on basal third. lOlytral 

 stria> very feebl.v inu)ressed with large oblonii punctures; intervals finely 

 and sparsely punctulate. Length 7-9 mm. 



Tln-ouuhout tile >>tat(*; fretpuMit. April 27-Auirust 11. 'Vhc 

 liiora.x is more convex and i-oundcd on sides in female than in male. 



1412 ( ). Melanotus crtbriventris sp. nov. 



Elongate, rather robust. Uniform piceous, sparsely clothed with gray- 

 ish pubescence; antennfe and legs reddish-brown. Antennjie slender, reach- 

 ing basiil fourth of elytra, second and third joints subglobular, sube(pial, 

 together one-third shorter than fourth. Clypeus feebly concave, coarsel.y 

 punctate, its front margin rounded. Thorax slightly longer than wide, 

 sparsely and rather flnel.v punctate; disk with a distinct median impression 

 on basal two-thirds: hind angles rather short, scarcely divaricate, strongly 

 carinate. Elytra very slightly tapering from the base, the punctures small, 

 close-set; intervals smooth or nearly so. Length 10-11 mm. 



Kosciusko County; rare. July 11. 



Group B. 



In this ui-onp the third antennal joint is always fully one-half 

 lon^'er than second and sometimes more than as long asrain. The 

 following" species, except one. are repres(Mited in the collection at 

 hand : 



KEY TO Sl*ECn:s OF GROl'P B. 



rt. Hind angles of thorax with two carin;e, the inner one nnich less dis- 

 tinct than the outer. 

 h. Thorax with a more or less distinct median impressed line. 



(\ Fnui'th joint of .antenna^ nearl.v or cpiite double the lengtli of tiiird; 

 Ihiirax sligiitly longer than wide: last ventral of male distinctly 

 tumid or convex at middle: larger. 15 or more mm. 



141o. nKCTMA.xrs. 

 (V. Fourth joint of aufenn.-e but little if any loii^'er than third: thorax 

 not longer than, wide: smaller, not ovei' 14 nun. 



1414. COMMUNIS. 



bl). Thorax without a mediini imin'ossed line. 



