AMERICAN COLEOPTERA. 



55 



Black ; head in front of the eyes dull reddish ; palpi and antennse black. Pro- 

 thorax longer than wide, polished, shining, rufo-testaceous, disc broadly concave 

 before the middle at the sides, side margin behind the middle not reflexed, pos- 

 terior callosities rather prominent. Elytra with feeble elevated lines, rugosely 

 punctured and sparsely tuberculate; claws slender, simple, anterior one of the 

 middle and hind tarsi feebly dilated at base ; % 9 • % front tarsi with first joint 

 longer and broadly dilated. Length 9 mm.; Nev ?.4. iiigeiilins n. sp. 



G. 



A single species represents this group in our fauna. It resembles 

 in form impressus, but is easily recognized by the color, and by 



the claws. 



Piceous black, front part of head testaceous, prothorax wider than long, side 

 margin wide, disc pale, with a broad black dorsal stripe dilated before and behind 

 the middle ; there a large rounded elevation each side in the pale part in front of 

 the middle, the posterior elevations are small, rather prominent, and situated m 

 the black stripe; elytra finely scabrous, margin pale ; antennae longer in % than 

 9 piceous, testaceous at base; claws slender, not toothed nor cleft; 1^. Length 

 5 mm.; <ra.; Fla.; (Bolter) 35. margiiiellus Lee. 



■»OL,EMllJS Lee. 

 This genus is intermediate between Telephorus and SiUsi, and is suffi- 

 ciently defined by the characters given in the table. The species are but 

 few, and none have yet been observed in the Pacific region, nor have 

 any been indicated from other districts. 



Prothorax with front angles obtuse, but obvious • 



Prothorax with the apical margin rounded into the sides without angles; disc 

 nearly flat, smooth, without impressions, side margin obliquely and feebly 

 interrupted at the middle, inflexed flanks deeply transversely impressed; 

 black, i)rothorax, and sometimes the humeri yellow ; the former occasionally 

 marked with a dusky dorsal line; antennae feebly serrate, three-fourths as 

 long as the body in % , somewhat shorter in ? . Length 7-9 mm. ; Tex. ; 



N. Mex 1- Pla-iicollis Lee. 



2.-Prothorax nicked in front of the middle, side margin very narrow near 



the tip ;■■*■ ' 



Prothorax transverse, widely margined, nicked about the middle ..-i- 



3 -Black, prothorax with a narrow fulvous margin, humeri often fulvous; disc 

 of prothorax transversely impressed each side near the margin, which is 

 narrowly reflexed and acutely interrupted in front of the middle; elytra 

 densely scabrous with distinct elevated lines; % antennae long, strong y 

 serrate • 9 antenna shorter, less serrate, prothorax wider and more strongly 

 n.ar.ined. Length 6-7 mm.; Pa.; 111.; Fla.; Tex...2. laticornis Say. 

 a -Prothorax rather narrower, elytra less coarsely scabrous; incisu. Lee 

 Very similar to laticornis, but the prothorax is pale tinged with rose, with a 

 dorsal dark vitta wider behind ; the sides are more broadly margmed ; elytra 



densely scabrous. Length 7 mm.; Pa.; Ga.; Tex 3. repai.clns n. sp. 



a -Prothoracic vitta indistinct; elytra with margins pale ? . 

 ry;,e.- Prothorax wider with the sides subbisinuate; antennre shorter. 



