Zealeuctra claasseni (Frison 1929)

Zealeuctra claasseni (Frison) Leuctra claasseni Frison (1929).
Leuctra (Zealeuctra) claasseni: Ricker (1952).
Zealeuctra claasseni: Ricker & Ross (1969).
Type locality. — Illinois, Pope County, Bushy Fork, Herod.
Regional distribution. — Watersheds 1-5,7-10, 13, 14,19-23,26-28,31-38,40-43,45-48,52-57,60,61,65, 67-69, 7 1-74, 76-87, 89, 90, 92, 93, 95-99, 102-105, 107111, 119-126 (Table 1).

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 3A–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 3E–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 3I–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.

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