AMERICAN PHILOSOPHICAL SOCIETY. 563 



STAPHYLINUS Linn. Grav. 



1. S. EPHIPPIATUS. — Black ; elytra rufous. 



Inhabits Mexico. 



Body black, polisbed ; head with a longitudinal, impressed line 

 between the eyes ; superior orbits with three or four punctures, 

 above these a lateral series of four or five punctures, and two or 

 three insulated ones, and at base each side a transverse series of 

 four or five punctures; antennae, terminal joint obliquely trun- 

 cate ; thorax semioval with a few scattered punctures each side, 

 an abbreviated dorsal series of four or five punctures not extend- 

 ing on the posterior third of the length of the thorax ; scutel 

 densely punctured, black ; elytra cinnamon-rufous, with very 

 numerous small hairs and slightly impressed punctures ; tergum 

 a little hairy, deep blackish-blue, iridescent ; palpi piceous. 

 Length over half an inch. 



This and the following species belong to Family 1st of 

 Gravenh. Monogr. 



[A species of Belonuchus, which I found at San Diego, Cali- 

 fornia, under dead Opuntia leaves. — Lec] 



2. S. CONNEXUS. — Black ; elytra and feet rufous. 

 Inhabits Mexico. 



Body black, polished ; head with punctured orbits and a few 

 scattered punctures each side ; palpi piceous black ; a deep and 

 wide indentation between the antennae, on each side of which 

 above is a single puncture ; thorax with a series of about five 

 large dorsal punctures [449] and a few scattered lateral ones ; 

 antennae cinnamon rufous, with very short hair and minute punc- 

 tures; feet color of the elytra. 



Length over three-tenths of an inch. 



Resembles the preceding, but the feet are rufous, and the 

 tergum is simply black ; the clypeus is a little advanced in the 

 middle. Fam. 1st. 



3. S. IRACUNDUS.— Black ; elytra rufous ; dorsal thoracic punc- 

 tures three. 



Inhabits Indiana. 



Head with an orbital puncture and three occipital punctures, of 



1834.] 



