Oxychalepus proximus
Creators: name: Staines, C. L.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Oxychalepus
Oxychalepus proximus

description: Oxychalepus proximus (Guérin-Méneville 1844)   
(Figure 14)  
 Odontota proxima Guérin-Méneville 1844: 273 [type: Brazil, type depository unknown]; Chapuis 1877:18 (note); Uhmann 1965: 257 (types), 1966: 272 (types).   
 Chalepus proximus (Guérin-Méneville). Gemminger & Harold 1876: 3614 (catalog); Donckier 1899: 591 (catalog); Blackwelder 1946: 727 (faunal list); Guérin 1953: 101 (faunal list).   
 Chalepus (Xenochalepus) proximus (Guérin-Méneville). Weise 1911a: 49 (note), 1911b: 28 (catalog), 1911c: 39 (catalog).   
 Oxychalepus proximus (Guérin-Méneville). Uhmann 1937b: 467 (types), 1938b: 438 (redescription), 1940b: 143 (types), 1957a: 109 (catalog), 1957b: 2 (faunal list), 1964b: 423 (catalog); Papp 1953: 85 (catalog); Buck 1958: 148 (museum list); Ramos 1998: 314 (Brazil species).   
 Chalepus (Xenochalepus) proximus biinterrupta Pic 1932: 18 [Syntypes: Brazil, Jatahy (MNHN)].   
 Chalepus proximus biinterrupta Pic. Blackwelder 1946: 727 (faunal list).   
 Oxychalepus proximus biinterrupta (Pic). Papp 1953: 85 (catalog); Uhmann 1957a: 109 (catalog), 1964b: 423 (catalog); Descarpentries & Villiers 1959: 149 (types).   
 Description. Head, antennae, scutellum, and legs black; pronotum yellowish with 3 black stripes; elytra with black anchor-shaped marking; black ventral markings variable. Head: vertex trisulcate; frontal carina straight; clypeus with irregular elevations. Antenna: antennomere 1 subglobose, twice length of 2; 2 transverse; 3–5 cylindrical, sulcate, 3–4 subequal in length, 5 shorter; 6–10 transverse, subequal in length; 11 pointed at apex; 1–7 punctate, glabrous; 8–11 setose. Pronotum: lateral margin bisinuate, converging to apex; anterior angle with tooth; basal impression distinct; surface punctate, punctures less visible on disc; microsculpture present between punctures, less visible in basal impression; pronotal length 1.1–1.3 mm (n=20); pronotal width 1.9– 2.0 mm. Scutellum: subcordate; alutaceous. Elytron: lateral margin finely dentate basally, more strongly dentate apically; apical margin subrectangular, exterior apical angle with long spine; apical margin with small tooth, and tooth at end of costa 1; 10 rows of punctures, scutellar row absent; costae 1 and 2 united at apex; elytral length 6.7–8.0 mm; elytral width 2.7–2.9 mm. Leg: femur and tibia punctate; protibia of male with large tooth, metatibia enlarged apically. Total length: 8.0–10.0 mm.   
 Remarks. This species can be distinguished by the elytra without a scutellar row and with costae 1 and 2 united near the apex; the vertex of the head is trisulcate; antennomere 1 is subglobose while 2 is transverse; and the lateral margin of the pronotum is bisinuate.   
 Host plant. Unknown.   
 Distribution. Bolivia, Brazil, and Paraguay.   
 Specimens examined. Bolivia. Piedra Blanca (CMNH); Beni: Cachuela Esperanza, iii (USNM). Del Sara (CMNH). North Yungas: La Paz Vagante, 1100 m, 29.iv.2006 (BYUC). Brazil. No further data (INSB); Corumba (CMNH, DEI); Santarem, v.1919 (CMNH). Goyaz: Jatahy (DEI). Matto Grosso: 1886 (USNM). Santa Catherina: Nova Teutonia (DEI). Paraguay. Alto Parana: Puerto Bertoni, 1908 (USNM). Guairá: Villarrica (USNM). Total: 26.
description: Published as part of Staines, C. L., 2010, A review of the genus Oxychalepus Uhmann, 1937 (Coleoptera: Chrysomelidae: Cassidinae), pp. 35-56 in Zootaxa 2573 (1) on pages 52-53, DOI: 10.11646/zootaxa.2573.1.2, http://zenodo.org/record/5303729