OF PniLADELPHlA. 337 



it iri quito different from that species, and much more closely re- 

 lated [281] to the L.nificoUis nobis, from which it differs chiefly 

 in the color of the thorax. 



ORSODACNA Fabr. 



1. 0. TBIPLA. — Rufous; feet yellowish ; thorax dentate each 

 side. 



Crioceris asparagi 3Ielsh. Catal. 



Body rufous, punctured : head coarsely and conflucntly punc- 

 tured ; before the antennjE yellow : antenna; with the basal joints 

 yellow at their tips : mandibles black at tip : thorax widest in 

 the middle, with coarse, confluent punctures ; lateral edge with 

 about six unequal denticulations, of which the anterior one is 

 yellowish, and forms the anterior angle : elytra with triple series 

 of rather large impressed punctures, and alternate elevated lines : 

 feet yellow; tarsi rufous : venter yellow in the middle. 



Length from one-fifth to one-fourth of an inch. 



Var. a. Elytra pale; abdomen yellow. 



Crioceris fiavida Melsh. Catal. 



Seems to belong to the genus Aurhenia of Megerle ; but I 

 have not seen the characters of that genus. 



[Belongs to Synetn. — Lec] 



2. 0. IIEPATICA. — Head black; thorax rufous ; elytra browni.sh. 

 Head black : palpi and base of the antennae yellowish : thorax 



yellowish-rufous, larger before the middle, with scattered punc- 

 tures ; anterior angles rounded : elytra liver color, with numerous, 

 irregularly disposed, rather large punctures : beneath piceous : 

 feet yellowish. [282] 



Length less than a quarter of an inch. 



This species was brought from the Mississippi region, by Mr. 

 Thomas Nuttall. 



DONACL\ Fabr. 



1. D. QUADRicoLLTS. — Brassy green ; thorax with the im- 

 pressed line and lateral tubercle, obsolete. 



Head dull green bronze ; frontal line very profoundly im- 

 pressed ; no distinct tubercle ; lateral lines very distinct and de- 

 finite : antennsD nearly black ; second joint but little shorter than 

 the third : thorax quadrate, very slightly narrower at base ; 

 1826.] 22 



