NORTH AMERICAN COLEOPTERA. 91 



S. feiiioralis Lee. 



This species resembles tenninati(.i so closely tluit it nuiy probably 

 be considered a variety. The uni(]ue, on which it is founded, has 

 the Ihorax at sides and in front more narrowly bordered with yellow 

 than in terminatus. The abdomen is entirely black, but the color 

 varies considerably in terminatus. LeConte seems to have considered 

 the color of the legs important, but I do not find the thighs black 

 as he states, the color seeming to be merely a very dark red, as if 

 discolored by grease. 



Hah. — Pennsylvania. Specimen unique. 



S. debilis Lee. — Oval, margin slightly interrupted at humeri, about a fourth 

 longer than wide, form not very convex, entirely yellowish testaceous. Head 

 and thorax very sparsely punctate, the latter slightly narrowed in front, sides 

 feebly arcuate. Elytra sparsely, obsoletely punctate; prosternum narrower in 

 front, a slight elevated line each side ; metasternum sparsely punctulate, the 

 mesocoxal line arcuate, joining the suture near the apex. Abdomen sparsely 

 punctate, the metacoxal line joining the first suture and continuous with it. 

 Length .04— .05 inch. ; 1—1.25 mm. 



The abdomen has six very distinct ventral segments. 



Owing to the fact that the condition of the unique type did not 

 permit a proper examination, this si)ecies was placed among those in 

 which the ventral arc is entire. 



Hah. — California, San Jose and Alameda. I have also specimens 

 from Marquette, Mich., and Florida, M-hich I am unable at present 

 to separate from those from California. 



Group B. . 

 The metacoxal line passes obliquely toward the first ventral sutui-e 

 and with a gradual or abrupt bend continues parallel with the suture. 

 The prosternum is convex or flat, with only mere traces 

 of the elevated lines. The mesocoxal arc is rather open 

 and joins the met-episternal suture near the middle. 

 The abdomen has six distinct segments in both sexes. 

 The S])ecies may be arranged in the following manner : 



Elytra entirely piceo-testaceous or ferruginous iilf I'llSUii^. 



Elytra piceous, maculate 2. 



2. — Each elytron with one spot •" .3. 



Each elytron with two spots 4. 



3. — Thorax yellow, elytral spot large and slightly ])ost-iiu'dian. .bivnliierus. 

 Thorax black. 



Legs ferruginous, elytral spot one-third from a])ex and ill-detined. 



l»i»«i|g:iiatu»«. 

 Femora piceous, tibite and tarsi yellow, elytral sjiot well defined, post- 

 median flavif roiis. 



Thorax brown, elytral spot large and gradually sudused !<»or<li(lii$$. 



TRANS. AM. ENT. SOC. XXII. APRIL, 1895. 



