Isarthrus calceatus (Say, 1836)

Otto, Robert L., 2024, Additional new records for 35 species of false click beetles (Coleoptera: Eucnemidae) in the Nearctic region, Insecta Mundi 2024 (37), pp. 1-16 : 11-12

Isarthrus calceatus (Say, 1836)

( Fig. 15 )

In Canada, this uncommonly encountered eucnemid species was taken in Ontario and Québec. In the United States, I. calceatus was previously recorded from Arkansas, Connecticut, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kansas, Maine, Maryland, Massachusetts, Michigan, Missouri, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, Texas, Vermont, and Wisconsin ( Otto 2022b; Wickham 1911). Herein, I confirm new state records for this species from North Carolina, South Carolina, and West Virginia. One specimen was obtained through sifting litter in North Carolina. Five specimens were extracted from a Pinus log in South Carolina. Twenty-three specimens were taken from Lindgren funnel traps in South Carolina, including one specimen from Lindgren funnel trap baited with α-pinae. Nine specimens were taken from flight intercept traps placed in South Carolina. One specimen was taken from UV light trap in South Carolina. One specimen was taken from a Lindgren funnel trap in West Virginia. NORTH CAROLINA: Dromaeolus / striatus/ LeConte [handwritten label] // SC: Calhoun Co./ Wannamaker NP/ St. Matthews/ at UV light/ April 6, 2010 // Col. J.C./ Ciegler (1, CUAC); USA: NC: Graham Co./ 35.3441° N, 83.9660° W / Joyce Kilmer Mem.

Forest / vi.24.2015, S. Myers & M./ Caterino, Sifted litter (1, CUAC) ; SOUTH CAROLINA: CSC APL 2 050331/ USA: SC: Chichland Co. Columbia/ 3737 Martin St. / Carolina Wood Products / coll. Friedman 31mar2005 / alphapinae ; Lindgren (1, CUAC) ; USA: SC: Kershaw Co. / SC For. Pine Btl Survey, 28-A/ N 34.4328, W −80.6047/ 7–14 April 2015 / Lindgren residue, D. Jenkins (2, CUAC) ; USA: SC: Kershaw Co. / SC For. Pine Btl Survey, 28-B/ N 34.3483, W −80.6967/ 7–14 April 2015 / Lindgren residue, D. Jenkins (2, CUAC) ; USA: SC: Kershaw Co. / SC For. Pine Btl Survey, 28-C/ N 34.4756, W −80.8036/ 7–14 April 2015 / Lindgren residue, D. Jenkins (1, CUAC) ; USA: SC: Fairfield Co. / SC For. Pine Btl Survey, 20-A/ N 34.3083, W −81.0252/ 7–15 April 2015 / Lindgren residue, D. Jenkins (3, CUAC) ; USA: SC: Chesterfield Co. / 34.5855° N 80.2690° W / Carolina Sandhills NWR/ ii.8–22.2017, Lindgren / M. Caterino & M. Ferro (1, CUAC) ; USA: SC: Chesterfield Co. / 34.5745° N 80.2232° W / Carolina Sandhills NWR/ ii.22.2017, in Pinus log/ M. Caterino, M. Ferro &/ R. Hopp (5, CUAC) ; USA: SC: Chesterfield Co. / 34.5855° N 80.2690° W / Carolina Sandhills NWR/ ii.22–iii.8.2017, Lindgren / M. Caterino & M. Ferro (5, CUAC) ; USA: SC: Chesterfield Co. / 34.5855° N 80.2690° W / Carolina Sandhills NWR/ ii.22–iii.8.2017, FIT/ M. Caterino & M. Ferro (2, CUAC) ; USA: SC: Chesterfield Co. / 34.5476° N 80.2433° W / Carolina Sandhills NWR/ ii.22–iii.8.2017, FIT/ M. Caterino & M. Ferro (2, CUAC) ; USA: SC: Chesterfield Co. / 34.5855° N 80.2690° W / Carolina Sandhills NWR/ ii.22–iii.8.2017, Lindgren / M. Caterino & M. Ferro (5, CUAC) ; USA: SC: Chesterfield Co. / 34.5626° N 80.2106° W / Carolina Sandhills NWR/ ii.22–iii.8.2017, FIT/ M. Caterino & M. Ferro (3, CUAC) ;); USA: SC: Chesterfield Co. / 34.5626° N 80.2106° W / Carolina Sandhills NWR/ ii.22–iii.8.2017, Lindgren / M. Caterino & M. Ferro (2, CUAC) ; USA: SC: Chesterfield Co. / 34.5855° N 80.2690° W / Carolina Sandhills NWR/ iii.8–24.2017, Lindgren / M. Caterino & M. Ferro (1, CUAC) ; USA: SC: Chesterfield Co. / 34.5476° N 80.2433° W / Carolina Sandhills NWR/ iii.8–24.2017, FIT/ M. Caterino & M. Ferro (1, CUAC) ; USA: SC: Chesterfield Co. / 34.5745° N 80.2232° W / Carolina Sandhills NWR/ iii.8–24.2017, FIT/ M. Caterino & M. Ferro (1, CUAC) ; WEST VIRGINIA: WEST VIRGINIA: Putnam / Co., 3.2 km SSW Buffalo / 38.59092, −81.99447 / 20 May–5 Jun 2020, LFT/ Greg Lewis (1, CMNH) .

Figures

Figures 13–18. Nearctic Eucnemidae, dorsal habitus. 13) Fornax parallelicollis. 14) Serrifornax infelix. 15) Isarthrus calceatus. 16) Dromaeolus turnbowi. 17) Nematodes humphreyi. 18) Nematodes rugosipennis. (Scale: 13–18 = 1.0 mm.)