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

description: Oxychalepus angulatus Staines New Species   
(Figure 3)  
Holotype (♂): Bolivia, Dpt. Santa Cruz, Pua. Ichilo, Buena Vista, x.1949, coll. Martinez / F. Monros Collection / Holotype Oxychalepus angulatus Staines (red label) (USNM). Paratypes (12, all with Paratype Oxychalepus angulatus Staines (red label)): 1- same label data as holotype (USNM); 1-. Bolivia, Santa Cruz: Ichilo, Santa Cruz, Hotel Flora y Fauna, 4 km SSE Buena Vista, 400–500 m, 3–14.xi.2003 (USNM); 3- Bolivia, Santa Cruz, 5 km SSE Buena Vista, Hotel Flora and Fauna, 440 m, W63º39.128’ S17º29.925’, 10– 22.X.2004, J. E. Eger (FSCA); 3- Bolivia, Santa Cruz, 3.7 km SSE Buena Vista, Hotel Flora and Fauna, 430 m / 14-28-X-2000, B. K. Dozier collector (FSCA); 2- Bolivia, Santa Cruz, 3.7 km SSE Buena Vista, Hotel Flora and Fauna, 14-19-X-2000, M. C. Thomas, tropical transition forest (FSCA); 1- Bolivia, Santa Cruz, Portreillos del Guendá, 40 km NW Santa Cruz de la Sierra, blacklight, 17º40.26’S 63º27.44’W, 5-20-XI-2004, B. K. Dozier (FSCA); 1- Argentina. Misiones: San Ignaci / Argentina 1968, J. Daguerre coll. (USNM).  
 Description. Head, antennae, scutellum, and legs (except base of femora) black; pronotum and elytra orangish-yellow with black markings; venter yellowish medially, black laterally, abdominal sterna 4–5 totally black. Head: vertex trisulcate; medial carina present; clypeus punctate, not projecting. Antenna: reaching to humerus; antennomere 1 subglobose, 2x length of 2; 2 transverse; 3–5 cylindrical, 3 slightly longer than 4 or 5; 6–10 transverse, 11 longer than others; 11 acutely pointed at apex. Pronotum: obconic; widest at base; convex; lateral margin bisinuate, slightly angulate in middle; anterior angle with small tooth; posterior angle acute; transverse basal impression present; disc finely, sparsely punctate, with faint medial sulcus; sides strongly, more densely punctate; pronotal length 1.4–1.6 mm (n=13); pronotal width 2.1–2.3 mm. Scutellum: quadrate; alutaceous. Elytron: with 10 rows of punctures, scutellar row absent; lateral margin sparsely dentate on basal ½, then more strongly dentate; exterior apical angle rounded, with two large teeth; apical margin strongly dentate; sutural angle slightly emarginate; humerus angulate, slightly produced; intervals 2, 4, and 8 costate, costa 2 strongly produced basally; interval 6 costate at base and apex; elytral length 8.6–9.0 mm; elytral width 3.3–3.4 mm. Venter: prosternum smooth; meso- and metasterna smooth medially, punctate laterally; abdominal sterna with scattered punctures. Leg: femur and tibia punctate; tibia with row of setae on inner margin and at apex. Total length: 10.9–11.1 mm.   
 Etymology. From angulus (Latin= corner or angle) for the distinctly angulate lateral margin of the pronotum.   
 Remarks. This species can be distinguished by the elytra without a scutellar row and having costae 1 and 2 not united near the apex; by the vertex of the head being trisulcate; and by having antennomere 1 subglobose and 2 transverse.   
 Host plant. Unknown.   
 Distribution. Argentina and Bolivia.
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 40-41, DOI: 10.11646/zootaxa.2573.1.2, http://zenodo.org/record/5303729