Calyxochaetus bovanodatus Runyon, 2024, sp. nov.

Calyxochaetus bovanodatus sp. nov. (Figs 122, 139, 144) Type material. HOLOTYPE ♂, labeled: “ Afton: K.C. Kim / Wash. Co., Minn./ May 7 1960 ”; “HOLOTYPE/ Calyxochaetus / bovanodatus / J.B. Runyon [red label]” (USNM) (Fig. 139). Diagnosis. This species is very similar to C. nodatus but differs in having mid tarsomeres 2–4 swollen (Fig. 122) and the position of the long ventral seta on the hind tibia. Description. Male. Wing length 3.3 mm. Similar to C. nodatus except as noted: Thorax: Scutellum with indistinct blue-violet reflections. Legs: Midleg: Tarsus (Fig. 122) with tarsomere 2 elongate ovate, rather swollen, concave ventrally, with anteroapical projection broader and rounded. Tarsomeres 3–4 swollen and nearly round, tarsomere 3 with ventral setae smaller and straight. Hindleg: Tibia with long slender ventral seta near 1/3 (one leg has additional short slender seta near 1/5). Female. Unknown. Distribution and seasonal occurrence. Known only from the holotype collected at Afton, Minnesota on May 7. Etymology. The specific epithet is from the Latin bova (a swelling of the legs) + nodatus, in reference to this species being similar to C. nodatus but having swollen mid tarsomeres.