AMERICAN I'HILOSOPIIICAL SOCIKTY. 581 



4. T. CINCTICOLLIS. — IJlack ; posterior thoracic niaririri, line of 

 the elytra, and feet yellowish. 



Inhabits Indiana. 



Body black ; mouth yellowish ; palpi pale yellnw : antenna; 

 fuscous, three basal joints yellowish ; fourth joint piceous ; tho- 

 rax, posterior margin, and lateral margin dilating towards the 

 posterior angles, honey-yellow; scutel piceous; elytra with an 

 appearance of .striae at tip; a sutural impressed stria, near which 

 is a series of distinct punctures, and another near the middle and 

 a subniarginal one ; pale yellowish, a dilated oval blued black 

 .spot extends from before the middle to the tip, does not attain 

 to the suture and is confluent with a blackish marginal line 

 which does not reach the humerus ; tergum, segments on their 

 posterior margins, obscure piceous ; feet pale yellow. 



Length less than one-fifth of an inch. 



Distinguished from the others of this country, by the differ- 

 ently colored thoracic margin. 



[Also a Boletobius. — Lec] 



5. T. iiu.MiDUS. — Black ; elytra and posterior margins of the 

 abdominal segments, rufous. 



Inhabits Indiana. 



Body black; antennae brownish, base and mouth honey-yellow ; 

 thorax piceous on the posterior edge ; elytra rufous or honey- 

 yellow, an impressed subsutural line, near which is a series of 

 punctures, surface with sparse punctures almost to be traced into 

 two or three .series; sutural margin very slightly dusky ; tergum 

 blackish, with piceous posterior margins of the segments; tip 

 somewhat fulvous ; feet honey-yellow. 



Length one-tenth of an inch. 



Allied to the preceding, but is a much .smaller species, and the 

 elytra are immaculate. [466] 



[Erichson considers this as probably Mycetoporus hpidm. — 

 Lec] 



TACIIYPORUS Gray. 



1. T. FUMlPENNis. — Black ; margin of the thorax and base 

 of the elytra yellowish. 



Inhabit^) Peuu.sylvania. 

 1834.] 



