364 PROCEEDINGS OF THE XATIONAL MUSEUM. vol. 37. 



SCYTHROPUS CINEREUS Casey. 



This species is not represented. 



SCYTHROPUS ALBIDUS Fall. 



Portland, Oregon; Beaver Canyon, Idaho; Humboldt County, Cali- 

 fornia, June 19; Eureka, California, June 4 (H. vS. Barber). 



SCYTHROPUS MISCIX Fall. 



Cotype, Sacramento County, California; Easton, Washington (Koe- 

 bele); Helena, Montana, May 5 (Hubbard and Schwarz). 



Genus MITOSTYLUS Horn. 

 MITOSTYLUS TENUIS Horn. 



Dallas, Texas; Wades, Texas, May 22; San Diego, Texas, June 13 

 (Hubbard and Schwarz); Beeville, Texas, April 30 (Marlatt), April 22 

 (Schwarz). 



MITOSTYLUS GRACILIS Horn. 



Cotypes, San Jose del Cabo, Lower California. 

 Tribe PROMECOPINI. 

 Genus COLEOCERUS Schonherr. 



COLEOCERUS DISPAR LeConte. 



Tucson, Arizona, July 21 (Hubbard and Schwarz, Wickham). 



COLEOCERUS MARMORATUS Horn. 



Dallas; San Diego; New Braunfels, June 16; Beeville; San Antonio; 

 Brownsville; Uvalde, June 18; Point Isabel; and Sharpsburg, Texas. 



Genus ARACANTHUS Schonherr. 



ARACANTHUS PALLIDUS Say. 



Illinois (Wickham); Louisville, Kentucky, July 17; Memphis, 

 Tennessee, ^farch 12 (Soltau); St. Louis, Missouri (Schuster). 



Genus EUDIAGOGUS Schonherr. 



EUDIAGOGUS PULCHER Fabricius. 



Orange County; Enterprise; Green Cove Springs and Crescent 

 City, Florida; Columbus, May 19; Cuero and Brownsville, Texas. 



EUDIAGOGUS ROSENSCHCELDI Fahraeus. 



Mobile, Alabama; Pascagorda and Natchez, Mississippi; Bayou 

 Sara, Louisiana; Columbus and Houston, Texas. 



Genus PROMECOPS Schonherr. 



PROMECOPS ARCUATA Fabricius (NUBIFERA Gyllenhal). 



This species is not represented. 



