AMERICAN COLEOPTERA. 53 



one-half as long as the third ; claws slender, more acutely cleft than usual. 



Length 6 mm.; Col., LaVeta; (Schwarz); one % 17. ruficollis n. sp. 



Yellow, antennse (except base of first joint), elytral vitta, apical part of thighs, 

 tihiiB and tarsi black; prothorax longer than wide, slightly narrowed in 

 front, sides subsinuate, margin narrower behind the middle; antennse two- 

 thirds as long as the body, second joint one-half as long as the third. 



Length 7mm.; Fla. ; Ga IS. longuliis Lee. 



This species resembles in appearance some of the varieties of pusillus, but 



is easily recognized by the longer prothorax. 

 a. — Pale yellow, antennfe (excejat at base), and tarsi dusky. 



€. 



This division is rei^resented in our fauna by but a single species not 

 unlike flavipea in appearance, but differing by the antennae and legs 

 being entirely black, and by the form of the claws. Those of the front 

 pair are cleft or acutely toothed, while those of the middle and hind 

 legs are squarely appendiculate. Otherwise there is nothing remarkable 

 about the species. 



Black, antenna; about one-linlf as long as the body, a little longer in % , second 

 joint one-half as long as third, entirely black. Prothorax yellow, sometimes with 

 a narrow black dorsal line, wider than long, sides straight, sides nearly uniformly- 

 margined. Elytra rather densely granulato-rugose. Length 4.5 mm.; Texas; 

 (Belfrage) 19- im»»aiMi. sp. 



D. 



These species occur on both sides of the continent, and among them 

 are the largest in our fauna. 



Eyes large and prominent, prothorax not or but little wider than long, fourth 

 tarsal joint deeply bilobed, broadly and deeply concave each side in front 

 of the middle, margin very narrow near the base; elytra finely granulato- 

 rugose, and sparsely punctured and subtuberculate 2. 



Eyes smaller, not prominent, prothorax transverse, sides more broadly mar- 

 gined , • ''• 



2.— Prothorax slightly wider than long ( 9 ) or longer than wide {%); yellow- 

 brown, head and prothorax more yellow, antennse piceous, yellow at base; 

 knees, tibife and tarsi piceous ; ventral segments sometimes dusky ; % with 

 the inner angle of hind til)ia; not produced. Length 12—19 mm.; Cal., 



S. Diego, Kern Co 20. coiisors Lee. 



Similar to the preceding but smaller, prothorax ? not wider than long; yel- 

 low, elytra and ventral segments often piceous, epipleurse yellow ; % with 

 inner angle of hind tibife spiniform. Length 12—14 mm.; L. S. ; N. H. ; 



Va.; Ill 21. rotundicollis Say. 



Very similar to rotimdicoUis, but the elytra are uniform grayish-piceous, 

 epipleurfe not yellow ; ventral segments piceous, last one yellow ; legs tinged 

 with duskv; % with tip of hind tibise not produced. Length 10 mm.; 



H. B. Terr.; L. Sup.; B. Col 22. €iirti!$ii Kirby. 



3. — Ventral segments ferruginous "*• 



Ventral segments black, sides and apex yellow 5- 



Ventral segments black "• 



(9) 



