234 GEOLOGICAL SURVEY OF NEW JERSEY. 



H. bicornis, 01 i v. 



On the Newark pist. Caldwell, common — Crane. 



PLATYDEMA, Lap. 

 P. excavatuni. Say. 



Generally distributed, common — Wenzel. Anglesea, in July 

 — Schwarz. Newark. Caldwell, common — Crane. 



P. ruflcorne, Sturm. 



Generally distributed, common — Wenzel. Newark. Brigan- 

 tine Beach, in September — Hamilton. 



P. ellipticum, Fabr. 



Locally common, generally distributed — Wenzel. 

 P. americanum, Lap, 



Common, generally distributed — Wenzel. 



PHYLETUS, Meg. 

 P. bifasciatus, Say. 



Hudson county — Linell. Newark. 



HYPOPHLCEUS, Fabr. 

 H. cavus, Lee. 



Generally distributed, rare — Wenzel. 



H. parallelus, Melsh. 



Newark. Brigantine Beach, in September, mainland — Ham- 

 ilton. Generally distributed, common — Wenzel. Westville — 

 Castle. 



H. thoracicus, Melsh. 



Generally distributed, rare — Wenzel. 



BOLBTOTHERUS, Cand. 

 B. bifurcus, Fabr. 



Common all over the State. 



BOLBTOPHAGUS, 111. 

 B. corticola, Say. 



Hudson county — Linell. 



