OF PHILADELPHIA. 345 



TRITOMA Fabr. 



1. T. XJNICOLOR. — Black; elytra striate; tarsi piceous. 

 Tritoma unicolor Melsh. Catal. 



Body black, polished, minutely punctured : palpi yellowish : 

 antennae ferruginous, the club blackish : thorax with the punc- 

 tures scattered on the disk, dense each side : elytra with regular 

 series of impressed punctures, obsolete towards the tip : tibiae 

 all dilated and angular near the tip : tarsi pale piceous. 



Length nearly one-fifth of an inch. 



2. T. ANGULATUM. — Black; beneath piceous; feet yellow- 

 ish. 



^^'^■^^^"^'^^^^'1 Melsh. Catal. 

 jnceum, j 



Body black, polished, punctures obsolete ; head piceous : palpi 

 ferruginous : antennae ferruginous, the [301] club blackish : ely- 

 tra with regular series of impressed punctures : beneath pice- 

 ovs : feet yellowish : tibiae dilated and angular near the tip. 



Length nearly three-twentieths of an inch. 



Resembles the preceding, but differs from it both in size and 

 coloring. 



3. T. PULCHRUM. — Black ; elytra rufous on the basal half. 

 Tritoma pulchrum Melsh. Catal. 



Body black, punctured, polished : antennae ferruginous ; club 

 dark piceous : palpi yellowish : elytra rufous at base, deep black 

 at tip, the line of division extending from behind the sutural 

 middle, in an oblique direction rectilinearly towards the humeral 

 angle, behind which it turns abruptly outward to the exterior 

 edge ; striae of punctures regular : tibiae hardly dilated at tip : 

 tarsi ferruginous. 



Length three-twentieths of an inch, nearly. 



The Triplax sanguinipennis and higuttata of vol. 4. p. 89, may, 

 perhaps, with greater propriety be referred to the present genup. 



[This is T. cinctum Lac. subsequently described. — Leg.] 



1826.] 



