OF PHILADELPniA. 197 



It is rather rare. The trivial name, applied by Mr. Knoch, is 

 pre-oceupied in this genus. 



[A species of Tuxotus, afterwards described as T. dives New- 

 man ; a variety of it is T. atratus Ilald. — Lec] 



3. L. BICOLOR. — llufous, sericeous ; elytra black. 

 Inhabits the United States. 



Jjrptara hlrolor Melsh. Catal. 



Body elongated, pale rufous, sericeous : head with an obsolete, 

 impressed line: antennae as long as the body: thorax conical; 

 posterior angles acute: elytra black, attenuated ; with numerous 

 short, pro.stratc, black hairs; tip very obliquely emarginate, ap- 

 pearing mucronate : wings black. 



Length from half an inch to three-fifths. 



This species is found in Pennsylvania, and on the Ohio and 

 Mississippi rivers. It may be allied to the L. hicolor of Swede- 

 rus in Stockholm Trans. 1S17, p. 107, but his insect is said to be 

 black on the uj)per part of the tail, a character which our insect 

 docs not possess. In Turton's translation of the Syst. Nat., the 

 name hicolor of Swederus is changed to hirolorata, so that Mr. 

 Melsheiiner's designation may be retained for the species here 

 described. 



4. L. iiuimiCA. — Black; elytra and abdomen rufous. 

 Inhabits the United States. 



Ltptura nibrica Knoch in Melsh. Catal. 



Body black, punctured, with numerous short hairs above, and 

 sericeous beneath : head obsoletely punctured : antennie as long 

 as the body; [419] six terminal joints fulvous at base : thorax 

 confluently punctured; punctures dilated; a transverse groove 

 on the hind margin : scutel small, black : elytra rufous or dull 

 brick red ; punctures numerous, becoming smaller to the tip, 

 which is emarginate, mutic : beneath black: abdomen rufous; of 

 the female, black. 



Length about half an inch. 



This insect occurs on the Mi.ssouri. It is found in Pennsyl- 

 vania, but 1 have nut frequently observed it. 



i). L. 8-NoTATA. — Black, hairy ; elytra each four-spotted. 



Inhabits Mississippi. 



Body deep black, with upright hairs: head rather lartro, with 

 1S24.] 



