116 ACADEMY OF NATURAL SCIENCES 



obsoletely rufous : venter, with an interrupted obsolete rufous 

 line on each side. 



Length eleven-twentieths of an inch. 



An inhabitant of Pennsylvania, which I also found in the 

 State of Illinois. [178] 



LYCUS Fab. 



1. L. TEBMINALIS. — [Ante, 1, 45.] 



2. L. SANGUiNiPENNis. — [Ante, 1, 45.] [179] 



LAMPYRIS Lin. 



1. L. NIGRICANS. — Brownish-black ; thorax with a rufous spot 

 each side within the margin. 



Inhabits the United States. 



Lamjiijris nigricans Knoch in Melsh. Catal. 



Mandibles piceous : antennae compressed, very slightly serrated : 

 thorax with a rufous oblong-oval spot each side, which does not 

 attain either the anterior or basal edges; margin uninterrupted; 

 disk black, elytra minutely scabrous, with about two obsoletely 

 elevated lines : pectus with two rufous spots corresponding with 

 those of the thorax. 



Length less than one-fourth of an inch. 



Var. a. Larger and deeper black. 



Length three-tenths of an inch. 



Difiers from corrusca in being much more oblong, much 

 smaller, the thoracic spots never attaining the edge of the thorax 

 in any part. The variety is found on the Missouri. 



[Belongs to Photimis as amended by Lacordaire, Gen. Coleop. 

 4, 321.— Lec] 



CANTHAKIS Lin. Fab. 

 1. C. modestus. — Black ; front, feet, and margin of the tho- 

 rax, yellowish ; elytra! margin and suture pale ; second joint of 

 the antennae as long as the third. 



Inhabits Missouri. [180] 



Body black; face, first joint of the antennse, and base of the 

 palpi yellowish : clypeus at tip dusky : thorax quadrate ; anterior 

 angles rounded : posterior edge and dilated lateral margin yel- 

 lowish-rufous : elytra slightly and obtusely scabrous, somewhat 



[Vol. III. 



