OF PHILADELPniA. 167 



the insect arc more violaceous. Wheu taken, it diffused an udor 

 very similar to that of some Blattse. 



2. M. CONFERTA. — Black, with dense punctures; antenna; 

 regular. 



Inhabits Missouri and Arkansa. 



Body bhick, opaque, punctured ; punctures crowded, concave, 

 equally distributed, confluent, furni.shing short black hairs : head 

 with separated punctures on the anterior part of the front, distant 

 ones on the clypeus, and remote ones on the labrum : antennae 

 regular: thorax as wide as the head, emarginate at base; sides 

 very sliirhtly arquated, hardly narrower at base ; a longitudinal, 

 dorsal, acute, impressed line : elytra scabrous, with minute 

 elevated points, and numerous short black hairs. 



Length, male half, female four-fifths of an inch. 



Perfectly distinct from the preceding species, and from the 

 amrricana, by the very dense and equally distributed punctures 

 of its head and thorax, [282] and by its minutely scabrous 

 elytra. Found in the vicinity of Council Bluff, and near the 

 Rocky Mountains. 



[Differs from Mche by the elytra not being imbricated : it forms 

 the genus Jlcnous Ilald., but was described by him as II. texarnts. 

 — Leg.] 



[Continuation from Vol. 3, pp. 298—331.] 

 LYTTA Fabr. 



1. L. FERRUOINEA. — Black, covered with short ferruginous 

 hair. 



Inhabits Missouri Territory. 



Body above invested with crowded ferruginous, short, prostrate 

 hair; beneath darker in consequence of the more sparse hair: 

 eyes brown, oval : antennae hardly larger than the thorax, gla- 

 brous, black ; basal joint hairy : labrum and palpi glabrous, 

 black : thorax suboval ; a longitudinal impressed line, and a basal 

 transverse one. 



Length about two-fifths of an inch. 



The antenna? are rather short, and exactly filiform. Found on 

 the Missouri by Mr. Nuttall. 



2. L. MACULATA.— [Ante, 1, G.] [299] 

 1824.] 



