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 Acentroptera tessellata Baly Fig. 12 Acentroptera tessellata Baly 1858:122 ( Neotype [here designated]: 10947// Neotype [white disk with red border]// Fry, Rio Jano.// Fry Coll. 1905-100// Acentroptera tessellata Baly , Brasilien [label folded] (BMNH)). Gemminger and Harold 1876: 3608 (catalog); Donckier 1899: 568 (catalog); Weise 1911a: 19 (catalog), 1911b: 27 (catalog); Papp 1953: 51 (catalog); Uhmann 1957: 66 (catalog); Staines and Staines 1999: 522 (Baly species list). Acentroptera tesselata Baly. Guérin 1953: 100 ( lapsus calami , faunal list). Description . Broadly elongate; subparallel; subconvex; yellowish; eyes black; pronotum with medial longitudinal vitta and lateral margins darker; scutellum dark brown; elytra with elongate darker spots; antennae, legs, and venter yellowish. Head: vertex sparsely punctate, medial sulcus present; slightly depressed between eyes; tooth present between antennal bases; frons and clypeus impunctate. Antenna: reaches to humerus; antennomere 1-2 subequal in length; 1 subglobose; 2 ovate; 3-4 subequal in length, each 1½x length of 2, elongate, cylindrical; 5-7 elliptical, 5 shorter than 4, decreasing in length; 8-10 transverse, subequal in length; 11 longer than 10, acutely pointed at apex; 1-7 sparsely punctate; 8-11 setose. Pronotum: transverse; subconvex; lateral margin straight, parallel at base, weakly angled in middle, sinuate apically, narrowly margined; anterior angle with oblique tooth; posterior angle acute; surface coarsely, densely punctate; longitudinal sulcus present on disc; transverse basal impression present medially; pronotal length 1.5 mm ; pronotal width 1.7 mm . Scutellum: quadrate; impunctate. Elytron: lateral margin straight, smooth, margined; exterior apical angle rounded; apical margin sinuate, laminate; sutural angle notched, with small tooth; humerus rounded; surface foveolate-punctate; with 4 costae, interspace 4 most strongly costate; elytral length 5.7 mm ; elytral width 2.6 mm . Venter: pro- and mesosterna impunctate medially, punctate laterally; metasternum impunctate; abdominal sterna sparsely, irregularly punctate, each puncture with pale seta; apical sternite with fringe of setae on apical margin. Leg: punctate, each puncture with pale seta; tibia with fringe of setae on inner apical margin. Total length: 7.7 mm . Discussion . This species was described from a single specimen from Brazil in the Parry collection and deposited in the BMNH. A detailed examination of the BMNH collection by the author and S. L. Shute (BMNH) failed to locate the holotype . Specimens identified as A. tessellata were not found in the DEI, MNHN, NRM, and ZMHB collections. I therefore concluded that the holotype has been lost or destroyed. Baly’s (1858) description is detailed enough to determine specimens from the BMNH and USNM collections as A. tessellata . Since the name had only been mentioned in catalogs and a more detailed description had not been published, a neotype is hereby designated to clarify the nomenclatural status of this species name (ICZN 1999, Art. 75). Host plant . Unknown. Distribution . Brazil ( Bahia , Rio de Janeiro ). Specimens examined : Brazil : Bahia- no further data (BMNH, USNM). Rio de Janeiro- no further data (BMNH). Total: 3.