Zealeuctra claasseni (Frison)

Grubbs, Scott A., Kondratieff, Boris C., Stark, Bill P. & DeWalt, R. Edward, 2013, A review of the Nearctic genus Zealeuctra Ricker (Plecoptera, Leuctridae), with the description of a new species from the Cumberland Plateau region of eastern North America, ZooKeys 344, pp. 17-47 : 23-28

Zealeuctra claasseni (Frison) Figs 3, 12

Leuctra claasseni Frison, 1929 (in part): 404. Holotype ♂ (INHS), Bushy Fork, Herod, Illinois.

Leuctra claasseni Frison, 1935 (in part): 354.

Leuctra claasseni Frison, 1942 (in part): 256.

Leuctra (Zealeuctra) claasseni Ricker, 1952: 173.

Zealeuctra claasseni Illies, 1966: 120.

Zealeuctra claasseni Ricker & Ross, 1969: 1115.

Description.

Male - abdominal tergal cleft. Anterior portion V-shaped with slight inward medial swelling but lacking crenulations along inner margins, anterior terminus very narrowly rounded (Figs 3 A–D). Posterior portion slightly more U-shaped with several irregularly-sized and rounded teeth projecting medially.

Male - epiproct. Triangular base narrowing to anteriorly-recurved and tapering terminal spine, no accessory spine or swelling present (Figs 3 E–H). Conspicuous tubercles located on the anterior margins of the triangular base. No accessory spine or cusp present.

Female - 7th sternum. Seventh sternum with a small, variably-shaped lobe nested in a small central notch (Figs 3 I– 3L). The lobe ranges in shape from somewhat quadrate to broadly convex. The notch is likewise variably shaped, from essentially straight and scarcely perceptible (Figs 3I, 3K) to slightly concave (Figs 3J, 3L). Posterior margin essentially straight.

Material examined.

USA, Arkansas: Baxter Co., High Tower Creek, Hwy 126 S of Monkey Run, 36.3369, -92.4743, 16.III.2002, B.C. Kondratieff and R.E. Zuellig, 31♂, 24♀ (CSUC); Logan Co., West Fork Hegwood Creek, Hwy 22, 3 mi E Paris, 35.2950, -93.6782, 21.III.1984, B.C. Poulton, 2♂, 3♀ (BYUC); Newton Co., Buffalo River, Hwy 21 bridge S of Boxley, 35.9610, -93.4042, 10.III.2002, B.C. Kondratieff and R.E. Zuellig, 8♂, 3♀ (CSUC). Illinois: Alexander Co., tributary to Sandy Creek, 4.8 km WNW Tamms, 37.2450, -89.3210, 25.IV.2001, D.W. Webb, ♂, ♀ (INHS); Hardin Co., Threemile Creek, 6.5 km WNW Elizabethtown, 5.IV.2000, R. E. DeWalt, ♂, ♀ (INHS); Jackson Co., tributary to Big Muddy River, Clear Springs Picnic Area, 3.5 km ESE Howardton, 37.6234, -89.4255, 7.IV.1992, M.A. Harris and M.J. Wetzel, ♂, ♀ (INHS); Pope Co., Burden Branch, Burden Falls, Shawnee National Forest, 37.5633, -88.6424, 20.IV.1992, D.W. Webb and M.A. Harris, ♂, 3♀ (INHS); Dog Creek, 9 km NW Hamletsburg at CR 1, Shawnee National Forest, 37.2041, -88.4914, 10.III.2011, R.E. DeWalt and M.R. Jeffords, 17♂, 9♀ (INHS); Gibbons Creek, 0.8 km N Herod, 37.5842, -88.4422, 5.IV.2000, R.E. DeWalt, ♂ (INHS); tributary to Lusk Creek, 0.8 km N Rising Sun, 37.4156, -88.5797, 28.III.2006, R.E. DeWalt, 3♂, 6♀ (INHS); Lusk Creek, SE of Eddyville, 37.4729, -88.5472, 28.III.2006, R.E. DeWalt, ♂, 3♀ (INHS). Indiana: Brown Co., Jackson Creek, 8 km W Nashville, Yellowwood State Forest, 39.2075, -86.3461, 7.IV.2001, S.A. Grubbs, ♂, ♀ (WKUC); Spanker Branch, 14 km S Nashville, 39.0700, -86.2623, 7.IV.2001, S.A. Grubbs, ♂, 2♀ (WKUC); Skinner Creek, 8 km SSE Nashville, Brown County State Park, 39.1395, -86.2066, 7.IV.2001, S.A. Grubbs, 7♂, 6♀ (WKUC); Clark Co., Nine Penny Branch, 4 km NE Charleston, Nine Penny Branch Nature Preserve, 38.4772, -85.6318, 13.III.2000, S.A. Grubbs and J.M. Ferguson, 4♂ (WKUC); Crawford Co., small spring-fed stream, Rich Cave Hollow, 2.5 km N Branchville, Saalman Hollow Nature Preserve, 38.1907, -86.5732, 12.III.2000, S.A. Grubbs and J.M. Ferguson, ♂, 1 nymph (WKUC); Mitchell Creek, 2 km SE Birdseye, Hoosier National Forest, 38.3006, -86.6599, 23.III.2006, S.A. Grubbs and R.E. DeWalt, 19♂, 11♀ (WKUC, INHS); Little Blue River, Rte. 37, 3 km N Sulphur, Hoosier National Forest, 38.2521, -86.4782, 23.III.2006, S.A. Grubbs and R.E. DeWalt, ♂ (WKUC); Dearborn Co., tributary to East Fork Tanners Creek, 11 km E Sunman, 39.2364, -84.9684, 20.III.2002, S.A. Grubbs, ♂ (WKUC); Dubois Co., small spring-fed stream, 7 km NE Ferdinand, Ferdinand State Forest, 38.2584, -86.7897, 6.IV.2001, S.A. Grubbs, 5♂, 4♀, 2 nymphs (WKUC); Franklin Co., Blue Creek, 7 km SSW Brookville, 39.3572, -85.0351, 20.III2002, S.A. Grubbs, 11♂, 8♀ (WKUC); creek at Mt. Carmel, Hwy 252, 28.III.1953, A.R. Gaufin, 35♂, 25♀ (BYUC); Jackson Co., Guthrie Creek, 18 km E Bedford, Hemlock Bluff Nature Preserve, 38.8492, -86.2615, 14.III.2000, S.A. Grubbs and J.M. Ferguson, 13♂, 4♀ (WKUC); tributary to Little Salt Creek, 7 km WSW Waymansville, Hoosier National Forest, 39.0030, -86.1968, 7.IV.2001, S.A. Grubbs, 8♂, 3♀ (WKUC); Jefferson Co., Little Doe Run, 12 km W Vevay, Splinter Ridge Fish and Wildlife Area, 38.7483, -85.2239, 20.III.2002, S.A. Grubbs, 7♂, 7♀ (WKUC); Monroe Co., tributary to Clear Creek, 3 km NW Herrodsburg, Cedar Bluffs Nature Preserve, 39.0364, -86.5636, 24.III.2006, R.E. DeWalt and S.A. Grubbs, 5♂, 2♀ (INHS, WKUC); Montgomery Co., Indian Creek, 8 km N Waveland, Pine Hills Nature Preserve, 39.9421, -87.0503, 9.IV.2006, R.E. DeWalt, 2♂, 3♀ (INHS); Ohio Co., tributary to Willow Creek, 5 km NW Enterprise, 38.9151, -85.0232, 20.III.2002, S.A. Grubbs, 6♂, 3♀ (WKUC); Parke Co., Rocky Hollow Creek, 6 km NNW Marshall, Rocky Hollow Falls Canyon Nature Preserve, 39.8952, -87.1990, 9.IV.2006, R.E. DeWalt, ♂, ♀ (INHS); Perry Co., East Deer Creek, 13 km E Tell City, Hoosier National Forest, 37.9508, -86.6144, 12.III.2000, S.A. Grubbs and J.M. Ferguson, 11♂, 2♀ (WKUC); tributary to East Deer Creek, 13 km E Tell City, Hoosier National Forest, 37.9506, -86.6140, 12.III.2000, S.A. Grubbs and J.M. Ferguson, 2♂, 3♀, 5 nymphs (WKUC); Pike Co., tributary to Patoka River, Rte.257, 1 km E Velpen, 38.3576, -87.0914, 8.IV.2000, S.A. Grubbs, ♂, 7♀ (WKUC); Putnam Co., tributary to Big Walnut Creek, 3 km ESE Bainbridge, Hall Woods Nature Preserve, 39.7579, -86.7807, 20.IV.2008, R.E. DeWalt and S.K. Ferguson, ♂ (INHS); Spencer Co., tributary to Anderson River, 11 km N Troy, 38.0891, -86.8018, 6.IV.2001, S.A. Grubbs, 2♂, 3♀ (WKUC). Kansas: Douglas Co., temporary stream, T12S, R20, S4¸10.V.1983, D.G. Huggins, ♂, 2♀ (BYUC). Kentucky: Cumberland Co., Marrowbone Creek, Leatherwood Rd. nr. Rte. 90, 6 km W Marrowbone, 36.8361, -85.5648, 27.III.2013, S.A. Grubbs and J.M. Yates, ♂, 4♀ (WKUC); Edmonson Co., Cub Creek, Rte. 70, 4 km W Roundhill, 37.2421, -86.3873, 30.III.2013, S.A. Grubbs, ♂, 2♀ (WKUC); tributary to Cub Creek, Rte. 70, 37.2397, -86.3961, 30.III.2013, S.A. Grubbs, 16♂, 7♀ (WKUC); Chenneth Branch, Shrewsbury Rd., 37.3709, -86.3473, 30.III.2013, S.A. Grubbs, 3♂, 3♀ (WKUC); Grayson Co., Buck Creek, KY 79 bridge SW of Caneyville, 37.4058, - 86.5109, 22.II.1999, B.C. Kondratieff and R.F. Kirchner, ♂, ♀ (CSUC); Hancock Co., tributary to North Branch South Fork Panther Creek, Rte. 1700, 10 km N Fordsville, 37.7246, -86.6737, 16.III.2002, S.A. Grubbs, ♂, 4♀ (WKUC); Marion Co., Sulfur Lick Creek, 6 km SE New Hope at Sulfur Lick Rd., 37.5876, -85.4993, 11.IV.2009, R.E. DeWalt and E.T. Chabot, ♂, 5♀ (INHS); Metcalfe Co., East Fork Little Barren River, Delk Branch Road, 12 km N Marrowbone, 36.9387, -85.5075, 27.III.2013, S.A. Grubbs and J.M. Yates, 2♂, ♀ (WKUC); tributary to East Fork Little Barren River, Reese Hurt Road, 12.5 km N Marrowbone, 36.9457, -85.5188, 27.III.2013, S.A. Grubbs and J.M. Yates, 9♂, 3♀ (WKUC); tributary to Marrowbone Creek, Rte. 90, Marrowbone State Forest, 36.8487, -85.6081, 29.III.2009, S.A. Grubbs, ♂ (WKUC); same but 27.III.2013, S.A. Grubbs and J.M. Yates, ♂, ♀ (WKUC); Moccasin Creek, Glen Shaw Rd., 10.5 km NW Summer Shade, 36.9164, -85.5917, 27.III.2013, S.A. Grubbs and J.M. Yates, 3♂, 3♀ (WKUC). Monroe Co., Little Sulphur Creek, Rte. 100/214 junction, 9.5 km E Tompkinsville, 36.7057, -85.5932, 18.III.2001, S.A. Grubbs, 11♂, 6♀, nymph (WKUC); Ohio Co., tributary to Pond Run, Rte. 110, 6 km W Falls of Rough, 37.5870, -86.6143, 16.III.2002, S.A. Grubbs, 6♂, 5♀ (WKUC); Trigg Co., Elbow Creek, Land-Between-The-Lakes, 36.7698, -88.0350, 18.III.2000, S.A. Grubbs, ♂ (WKUC); Warren Co., Doty Creek, Hays-Pondsville Rd., 11 km SW Bon Ayr, 36.9782, -86.1577, 24.III.2001, S.A. Grubbs, 3♂, 5♀ (WKUC); small temporary stream, Beckham Rd., 11.5 km SW Bon Ayr, 36.9648, -86.1745, 24.III.2001, S.A. Grubbs, ♂, ♀ (WKUC). Missouri: Barry Co., East Fork Rock Creek, Hwy M N of Mano, 36.5947, -93.6988, 16.III.2004, B.C. Kondratieff, R.E. Zuellig, and M. Garhart, 10♂, 3♀ (CSUC); tributary to Roaring River, CR 1162, Chute Ridge, 36.5612, -93.7936, 16.III.2004, B.C. Kondratieff, R.E. Zuellig, and M. Garhart, 12♂, 8♀ (CSUC); tributary to Rock Creek, Hwy M N of Mano, 36.6100, -93.7008, 16.III.2004, B.C. Kondratieff, R.E. Zuellig, and M. Garhart, 3♂, 3♀ (CSUC); Ozark Co., Lick Creek, Hwy J N of Howards Ridge, 36.5502, -92.3437, 16.III.2002, B.C. Kondratieff and R.E. Zuellig, 10♂, 4♀ (CSUC); Texas Co., West Fork Roubidoux Creek, Hwy M North of Huggins, 37.3534, -92.2091, 17.III.2002, B.C. Kondratieff and R.E. Zuellig, 38♂, 13♀ (CSUC); Hog Creek, Lily Rd. S of Houston, 37.2400, -91.9527, 17.III.2002, B.C. Kondratieff and R.E. Zuellig, 42♂, 15♀ (CSUC); Webster Co., Finley Creek, Hwy K S of Seymour, 37.1042, -92.7606, 17.III.2004, B.C. Kondratieff and R.E. Zuellig, 28♂, 15♀ (CSUC). Ohio: Clermont Co., stream, 2 mi W Neville, Rt. 52, 27.III.1974, O.S. Flint, 5♂, 6♀ (BYUC); Hocking Co., East Fork Salt Creek, Jct. OH 374/OH 56, 5.8 km ESE South Bloomingville, 39.3938, -82.5397, 18.IV.2010, R.E. DeWalt, ♂, 2♀ (INHS); Hoy Hollow Creek, 6.7 km E South Bloomingville, Hocking Hills State Park, 39.4236, -82.5221, 18.IV.2010, R.E. DeWalt, ♂, ♀ (INHS); East Fork, Ash Cave, 39.3954, -82.5473, 21.III.1975, R.W. Baumann and O.S. Flint, 4♂, ♀ (BYUC), same but 14.IV.1990, Clark and Wells, ♂, 2♀ (BYUC); Logan Co., tributary to Macochee Creek, 1 mi S Pickrelltown, 40.2785, -83.6741, 21.IV.1989, R.W. Baumann and R.F. Kirchner, ♂, ♀ (BYUC); Ross Co., Ralston Run, Hwy 772 and Blain Hwy, 39.2413, -83.0597, 19.IV.1989, R.W. Baumann and R.F. Kirchner, 3♂, 3♀ (BYUC); Crooked Creek, Jct. Blain Hwy and Mt Tabor Rd., 39.2140, -83.0293, 19.IV.1989, R.W. Baumann and R.F. Kirchner, 2♂ (BYUC). Oklahoma: Comanche Co., Cedar Creek, Wichita Mountain National Wildlife Reserve, 34.7248, -98.6739, 4.I.2010, R.E. DeWalt and S.K. Ferguson, 13♂, 3♀ (INHS); West Cache Creek, border Wichita NWR, Fort Sill, W Hwy 115, 34.6814, -98.6644, 5.II.2003, B.C. Kondratieff, R.E. Zuellig, and J.P. Schmidt, 12♂, 7♀ (CSUC); tributary to Blue Beaver Creek, Deer Creek Rd. at Blue Beaver Valley Rd., 34.7000, -98.5653, 15.III.2004, B.C. Kondratieff, R.E. Zuellig, and M. Garhart, 6♂, 4♀ (CSUC); Medicine Creek, Punch Bowl Rd., Fort Sill, 34.7169, -98.4903, 5.II.2003, B.C. Kondratieff, R.E. Zuellig, and J.P. Schmidt, 2♂, ♀ (CSUC); Blue Beaver Creek, McKenzie Hill Rd., Fort Sill, 34.6608, -98.5542, 5.II.2003, B.C. Kondratieff, R.E. Zuellig, and J.P. Schmidt, 25♂, 8♀ (CSUC); Johnston Co., Rock Creek, 5.8 km SE Mill Creek at OK 7, 34.3612, -96.7887, 3.I.2010, R.E. DeWalt and S.K. Ferguson, 4♂ (INHS); Latimer Co., Rock Creek, CR NE1130, 35.0186, -95.0599, 27.XII.2006, B.P. Stark, 3♂, 2♀ (BPSC).

Distribution.

USA: AL, AR, IL, IN, KS, KY, MO, OK, OH, TN, TX, WV ( DeWalt et al. 2012)

Remarks.

Despite the broad distribution (Fig. 12), there appears to the little variation in the general features of the cleft. Only a minor degree of variation is evident in the epiproct, particular in the size and shape of the triangular base. Ricker and Ross (1969, their fig. 20) and Poulton and Stewart (1991, their fig. 112) depicted an epiproct base that is markedly broader than what is shown here with SEM micrographs.