118 ACADEMY OF NATURAL SCIENCES 



Length from two-fifths to more than half an inch. 



One of our largest species. As it is very distinct from the 

 Pennsylvanicus of Degeer, I take the liberty of changing the 

 name given by Professor Knoch. 



[Also a Podahrus. — Lec] 



4. C. FRAXINI. — Entirely brownish-black, immaculate. 

 Inhabits the United States. 



Necydalk fraxini Melsh. Catal. 



Body black : head, a spot before the eyes, and mandibles, yel- 

 lowish : palpi piceous : thorax with a minute angle at the basal 

 angles : elytra obtusely scabrous, or with dilated, confluent, 

 slightly impressed punctures, forming irregular transverse lines : 

 feet blackish-brown. 



Length nearly one-fourth of an inch. 



[A Telephorus, afterwards described by me as T. nigrita. — 

 Leg.] [182] 



5. C. RUFIPES. — Black ; thorax margined with rufous ; elytra 

 with a pale margin and suture. 



Inhabits the United States. 



Cantharis rufipes Melsh. Catal. 



Body black : head, spot before the eyes and mandibles yellow- 

 ish : palpi pale piceous-brown : thorax with a much dilated ru- 

 fous lateral margin : elytra with a pale yellowish exterior margin, 

 tip, and suture : feet pale yellowish : thighs in the middle black. 



Length one-fourth of an inch nearly. 



Var. a. Exterior margin of the elytra only, yellowish. 



[Also a Telephorus. — Lec] 



6. C. BILINEATUS. — Rufous J elytra black ; thorax with two 

 black lines. 



Inhabits the United States. 



Cantharis marginalis Knoch in Melsh. Catal. 



Body pale rufous : head a band between the eyes, antennae, 

 excepting the basal joint, and palpi, black : thorax with two 

 parallel abbreviated dilated black lines : elytra black ; exterior 

 basal margin pale : postpectus behind the intermediate feet 

 black : tibia and tarsi black. 



Length seven-twentieths of an inch. 



[Vol. III. 



