LONG S SECOND EXPEDITION. 193 



terior margin with an impressed transverse line ; anterior mar- 

 gin with the punctures so transversely elongated and confluent 

 as to appear wrinkled; feet blackish-piceous, paler at base; scutel 

 covered with dense prostrate pure white hair ; elytra with the 

 impressed punctures larger at base, transversely confluent : hu- 

 merus rather prominent, obtuse; on different parts of the elytra 

 is dense, dirty brown, very [290] short, prostrate hair, tip un- 

 armed ; beneath blackish with a purplish or slight cupreous 

 tinge ; a little hairy, particularly on the postpectus. 



Length nine-tenths of an inch. 



[Is a species of Ifonohammus. — Lec] 



SAPERDA Fabr. 



S. vestita. Body entirely covered with very short greenish- 

 yellow hair ; elytra with three small dots. 



Inhabits near the southern extremity of Lake Michigan. 



Antennae about the length of the body ; eyes dark chestnut ; 

 thorax with an obsolete dorsal line ; elytra unarmed at tip ; dots 

 black, small, three on each elytrum, placed one before and near 

 the middle, largest one a little nearer the base and more distant 

 from the suture than the other, and one behind the middle, dis- 

 tant from the preceding in a line with the anterior one. 



Length three-fourths of an inch. 



A very fine insect. It is also sometimes found in Pennsyl- 

 vania. 



CLYTUS Fabr. [292] 



1. C. speciosus. [Ante, p. 118.] 



2. C. undulatus. [Ante, p. 119.] 



MOLORCHUS Fabr. 



M. marginalis. Yellowish ; elytra dusky on the disk ; an- 

 ennse shorter than the elytra. 



Inhabits United States. 



Body with numerous minute hairs ; head yellow ; vertex, palpi 

 blackish; antennae short, hardly reaching the tip of the elytra 

 and excepting the three basal joints, blackish ; eyes prominent, 

 black-brown ; thorax short, transversely oval, yellow with a dusky 

 disk ; elytra much abbreviated, rounded at tip, yellow ; disk 



13 



