OF PniLADELPMIA. 325 



Resembles the preceding, but is smaller, an<l is reaJily dis- 

 tinguished by the impressed line of the thorax. 



LATRIDIUS Herbst. 



L. PDBESCENS. — Reddish-brown: thorax each side irre^jru- 

 larly denticulated. 



Inhabit.s Pennsylvania. 



Ldtridinx pnhiscens Melsh. (^ital. 



Body irregularly punctured, with numerous scattered hairs : 

 Uiorax on the lateral edge having eight or nine irregular denti- 

 culations : elytra without any series of punctures or Impressed 

 line; hairs of the lateral margin prominent. 



Length neraly three-twentieths of an inch. 



Very different from the species which I described under the 

 name of L. H-dtnt/ttus, which has regular series of punctures on 

 the elytra. 



[Belongs to Paratcnetux, and seems to be P. punctatns Spin., 

 Mon. Cler. 2, IIG; tab. 44, fig. ').— Leg.] 



SILVANUS Latr. 



S. DE.NTATU.s. — Thorax 0-toothed each side, and with a double 

 indentation behind. 



LatrUUiis dentatus Melsh. Catal. 



Body reddish-brown, depressed, punctured ; punctures small : 

 head with a reflected edge each side, [266] extending above 

 the eye, and somewhat more prominent over the insertion of the 

 antennae : thorax with two dilated, parallel, longitudinal inden- 

 tations behind the middle, and not reaching the base ; lateral 

 edge with six rounded teeth ; the anterior and posterior ones 

 more acute : elytra with about four slightly elevated lines, sub- 

 sutural one obsolete. 



Length three-twentieths of an inch. 



[This is the type of Xamihlu^, and was previously described 

 under the same specific name by Marsham and Fabricius ; it has 

 been carried by commerce over the entire globe. The genus is 

 still of doubtful position. — Lec] 



1820.] 



