Dicaelus furvus furvus Dejean, 1826

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 629-630

Dicaelus furvus furvus Dejean, 1826

Dicaelus furvus Dejean, 1826: 388. Type locality: «Amérique septentrionale" (original citation), restricted to "Pennsylvania, east of the Susquehanna River" by Ball (1959: 121). One syntype in MHNP (Lindroth 1955b: 18).

Dicaelus ovalis LeConte, 1847: 427. Type locality: United States east of the Rocky Mountains (inferred from title of the paper). Syntype(s) in MCZ [# 5715]. Synonymy established by Ball (1959: 120).

Distribution.

This subspecies ranges from eastern Pennsylvania to west-central Illinois (McCravy and Willand 2008: 157), south to Tennessee (Ball 1959: 122) and South Carolina (Kirk 1969: 14; Kirk 1970: 15; Ciegler 2000: 84). The records from New York (Notman 1928: 229, as Dicaelus ovalis ) and “Georgia” (J.E. LeConte 1849: 26) need confirmation; that from southern Louisiana (Summers 1874a: 80) is probably in error.

Records.

USA: DC, DE, IL, IN, KY, MD, NC, NJ, OH, PA, SC, TN, VA, WV [GA, NY]

Note.

Ball (1959: 122) reported the presence of intergrade populations between this and the carinatus forms in Ohio, Indiana, Illinois, Tennessee, and North Carolina. For practical reasons, these populations are considered here to belong to the nominotypical subspecies.