Key to South American genera of Acanthocinini (Coleoptera, Cerambycidae, Lamiinae) without erect setae on elytra; synonymies, transferences, revalidation, and notes on genera with erect setae on elytra Author Monné, Miguel A. 0000-0001-8825-3122 monne@uol.com.br Author Santos-Silva, Antonio 0000-0001-7128-1418 toncriss@uol.com.br Author Monné, Marcela L. 0000-0001-8825-3122 monne@uol.com.br text Zootaxa 2020 2020-10-21 4863 1 1 65 journal article 9030 10.11646/zootaxa.4863.1.1 95a73980-ea3b-47d6-9841-774c62b4d825 1175-5326 4416817 66DCE172-2486-450B-AD2C-2D80F573348E Paroecus Bates, 1863 ( Figs. 139–140 ) Paroecus Bates, 1863c: 379 . Type species — Paroecus ellipticus Bates, 1863 (subsequent designation, Thomson, 1864: 322 ). Hysterotarsus Thomson, 1864: 26 . Type-species— Hysterotarsus batesii Thomson, 1864 (original designation). Lepturguncus ( Chaeturguncus ) Gilmour, 1961: 350 . Syn. nov. Type species— Lepturguncus (Chaeturguncus) vittulatus Gilmour, 1961 (original designation). Diagnosis. Antennae of males with internal projection at apex of antennomere V and/or VI; lateral tubercles of the prothorax coincident with the lateroposterior angle or placed near it; elytra without centrobasal crest or carinae; erect setae present only at margins. Number of species currently included: 7. Remarks. Paroecus can be included in the alternative of couplet “2” from Monné et al. (2020) : 2(1). Antennae 11-segmented................................................................................. 2’ – Antennae 12-segmented............................................................... Lepturgantes Gilmour, 1957 2’(2). Antennomeres V and/or VI in males with internal projections.................................. .. Paroecus Bates, 1863 – Antennomeres without projections in either sex.................................... Lepturges ( Chaeturges ) Gilmour, 1959