Isarthrus calceatus (Say, 1836)

Otto, Robert L. & Karns, Ken D., 2017, New state records for Nearctic false click beetles (Coleoptera: Eucnemidae), Insecta Mundi 2017 (582), pp. 1-21 : 14

Isarthrus calceatus (Say, 1836)

In Canada, this uncommonly seen eucnemid species was taken in Ontario and Québec. In the United States, I. calceatus was previously recorded in Arkansas, District of Columbia, Georgia, Illinois, Indiana, Kansas, Maine, Massachusetts, Michigan, Missouri, New Hampshire, New York, Ohio, Pennsylvania, Texas, Vermont and Wisconsin ( Muona 2000). New records reported here include Maryland, New Jersey, Oklahoma and Rhode Island. Specimens was taken from Lindgren funnel traps and a intercept panel trap. MARYLAND: Worchester County: Whitesburg, 2 May 1988, R.J. Rabaglia (CMNH); NEW JERSEY: Burlington County: 7 km Chatsworth, Lebanon State Forest, 24 May–7 June 2005, R. Acciavatti (CMNH), 4.1 km NW Atsion, Wharton State Forest, 30 April–15 May 2002, R. Acciavatti (CMNH), Salem County: 3 km SE Centerton, Parvin State Park, 24 May-7 June 2005, R.E. Acciavatti (CMNH); OKLAHOMA: Tulsa County: 9.1 km NE Tulsa, 9 March–29 April 2016, A. Edwards (CMNH), 14.2 km NE Tulsa, 10 March–28 April 2016, A. Edwards (CMNH); RHODE ISLAND: Kent County: 0.8 km W Potowomut, Goddard Memorial State Park, 2–14 June 2016, K. Divito (CMNH), Providence County: 6.6 km SW Scituate, 6–19 May 2016, K. Divito (CMNH), Washington County: 1.4 km SE Exeter, 25 May–7 June 2016, L. Petermen (CMNH), 14.6 km W Exeter, 12–28 July 2016, L. Petermen (CMNH), 1.4 km WSW West Kingston, 7–14 May 2015, K. Divito (CMNH), 1.4 km SSW Hope Valley, 23 April–7 May 2015, K. Divito (CMNH), 6.2 km NE South Kingstown, 14–28 June 2016, L. Petermen (CMNH).

Isarthrus ru fi pes (Melsheimer, 1844)

( Fig. 13 )

In Canada, this eucnemid species was taken in Ontario. In the United States, I. rufipes were found in Alabama, Connecticut, District of Columbia, Georgia, Illinois, Indiana, Maryland, Michigan, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, Wisconsin ( Muona 2000) and newly recorded in Iowa and Maine. One of the specimen was taken from a Lindgren funnel trap. IOWA: Fremont County: Waubonsie S.P., 28 June 2007, in rotting tree stump, Doug Veal ( DAVC) ; MAINE: Somerset County: 1.8 km WNW Fairfield, 14–28 July 2016, J. Nicolelli ( CMNH) .

Figures

Figures 13–18. Nearctic Eucnemidae, dorsal habitus. 13) Isarthrus rufipes. 14) Dromaeolus salsus. 15) Dromaeolus striatus. 16) Thambus horni. 17) Nematodes collaris (unicolored form). 18) Nematodes collaris (bicolored form). (Scale: 13–18 = 1.0 mm.)