A revision of the genus Acentroptera Guérin-Méneville, 1844 (Coleoptera: Chrysomelidae: Cassidinae) Author Staines, C. L. text Insecta Mundi 2014 2014-01-10 2014 332 1 19 journal article 10.5281/zenodo.4645589 1942-1354 4645589 AAD2DCEC-2F4D-4E8D-825F-B2754DC13F22 Key to the described species of Acentroptera 1. Lateral margin of pronotum angulate in middle ........................................................................... 4 — Lateral margin of pronotum sinuate or arcuate ........................................................................... 2 2(1). Vertex of head impunctate; elytra with additional row of punctures between rows 5 and 6 in middle; orangish-yellow, elytra with reddish-purple vitta; 7.5-8.2 mm ; Panama ; Fig. 6 ............ ........................................................................... Acentroptera lineata Staines , new species — Vertex of head punctate or rugose; elytra without additional row of punctures between rows 5 and 6 ............................................................................................................................................ 3 3(2). Pronotum with longitudinal medial sulcus; humerus angulate; sutural angle with small tooth; reddish-brown with black markings; 12.1 mm ; Brazil ; Figure 13 .............................................. ................................................................................................. Acentroptera zikani Uhmann — Pronotum without longitudinal medial sulcus; humerus rounded; sutural angle without small tooth; testaceous, apical antennomeres and lateral margin of pronotum darker; 7.3-9.4 mm ; Costa Rica , Guatemala , Honduras , Mexico ; Fig. 7 .... Acentroptera nevermanni Uhmann 4(1). Sutural angle notched ................................................................................................................... 5 — Sutural angle not notched ............................................................................................................. 7 5(4). Humerus angulate; antennomere 1 transverse; elytra with additional row of punctures between rows 5 and 6 in middle; reddish-yellow, elytra with dark markings; 5.5 mm ; Panama ; Fig. 2 . ................................................................................. Acentroptera bita Staines , new species — Humerus rounded; antennomere 1 subglobose; elytra without additional row of punctures between rows 5 and 6 ............................................................................................................................... 6 6(5). Pronotum with longitudinal medial sulcus; antennomere 1 shorter than 2; brownish-red, elytra with alternate interspaces paler; 8.6-10.0 mm; Bolivia , Brazil , Colombia , Ecuador , Panama , Peru ; Fig. 4 ........................................................................... Acentroptera emdeni Uhmann — Pronotum without longitudinal medial sulcus; antennomere 1 subequal to 2; uniformly yellowish, pronotum with lateral and medial longitudinal vittae, elytra with elongate darker spots; 7.7 mm ; Brazil , Fig. 12 ................................................................... Acentroptera tessellata Baly 7(4). Vertex of head impunctate; testaceous, pronotum with brown medial vitta; 6.7-9.1 mm ; Costa Rica , Panama ; Fig. 11 .......................................................... Acentroptera strandi Uhmann — Vertex of head punctate or rugose ................................................................................................ 8 8(7). Vertex of the head rugose ............................................................................................................. 9 — Vertex of the head punctate ......................................................................................................... 10 9(8). Sutural angle of elytra without tooth; reddish, pronotum with wide dark vitta on lateral margins and narrower medial longitudinal vitta, elytra yellowish with red margins and dark humeral band and transverse oblique band near posterior margin; 10.4-11.5 mm ; Brazil , French Guiana ; Fig. 8 .................................................................... Acentroptera norrisii Guérin-Méneville — Sutural angle of elytra with small tooth; dark, elytra brownish-red with darker sublateral and sutural vittae (which sometimes unite or may be absent); 9.5-11.3 mm ; Ecuador ; Fig. 9 ........ ........................................................................................................ Acentroptera ohausi Weise 10(8). Pronotum without medial longitudinal carina or sulcus .......................................................... 11 — Pronotum with medial longitudinal carina or sulcus ................................................................ 12 11(10). Elytra with humerus rounded; yellowish-brown, pronotum with 3 longitudinal vittae, elytra pale yellow with lateral margin, suture, humerus, and apex darker plus 2 large dark maculae along sutural margin; 9.7-14.6 mm ; Brazil ; Fig. 10 .............................................................................. ....................................................................... Acentroptera pulchella (Guérin-Méneville) — Elytra with humerus angulate; metallic blue-black, pronotum with 3 longitudinal vittae, elytra with large yellow transverse band on apical 1/3; 11.0-14.0 mm; Colombia , Brazil ; Fig. 3 ....... .............................................................................. Acentroptera dejeanii Guérin-Méneville 12(10). Elytra with humerus rounded; pronotum reddish-brown with 3 dark longitudinal vittae, elytra shiny reddish-brown with 3 dark oblique bands; 11.0-12.0 mm; Argentina , Brazil , French Guiana , Paraguay ; Fig. 1 ................................................................. Acentroptera basilica Thomson — Elytra with humerus angulate; reddish-yellow; pronotum with three dark vittae, elytra with lateral margins dark and narrow dark transverse band present behind middle and at apex; 12.0-13.0 mm; Bolivia , Brazil ; Fig. 5 ................................. Acentroptera lacordairei Lucas