322 ACADEMY OF NATURAL SCIENCES 



Closely allied to the preceding, but is mucli smaller, and the 

 markings are always different. 



3. M. 6-PUNCTATUS. — Blackish ; elytra with three spots of 

 yellowish hairs. 



Mycetophagus Q-punctatus Melsh. Catal. 



Body blackish-brown, with short yellowish sericeous hairs : an- 

 tennae with the three last joints larger : labrum yellowish : thorax 

 with an abbreviated, obsolete longitudinal line on the posterior 

 margin, each side: elytra with regular series of hairs, more 

 obvious towards the exterior margin j a dense group of hairs on 

 the middle of the base, forming a spot on that part ; a subsutural 

 one is before, and another behind the middle : beneath piceous : 

 tarsi paler. 



Length rather less than one-tenth of an inch. 



Very distinct from the preceding. 



[Belongs to Litargus Er. — Leg.] 



4. M. DiDESMus. — Blackish; elytra with two bands and obso- 

 lete tip, pale rufous. 



Body blackish-piceous, with short yellowish-sericeous hairs : 

 head piceous : antennae somewhat clavate : thorax with the pos- 

 terior angles rounded : elytra with a pale rufous, slightly oblique 

 band near the base, and another beyond the middle ; tip obso- 

 letely pale rufous : feet pale. 



Length much less than one-tenth of an inch. 



[Also a Litargus. — Lec] [262] 



LYCTUS Fabr, 



1. L. REFLEXUS. — Chestnut; thorax punctured, slightly nar- 

 rower behind ; elytra striate. 



Inhabits Pennsylvania. 



Lyctus amcricanus ? Melsh. Catal. 



Head with numerous, large, deep punctures j a longitudinal 

 rather wide indented line each side, near the eyes : antennae 

 rather robust, shorter than the thorax : thorax with large numer- 

 ous punctures, gradually a little narrowed behind, without any 

 impressed line or elevation ; lateral edge dusky : scutel convex, 

 rounded : elytra with somewhat large striae, in which are large 

 punctures ; terminal edge reflected. 



Length three-twentieths of an inch. 



[Belongs to Pycnomerus Er. — Lec] 



[Vol. V. 



