Oxychalepus centralis Uhmann 1940a

Staines, C. L., 2010, A review of the genus Oxychalepus Uhmann, 1937 (Coleoptera: Chrysomelidae: Cassidinae), Zootaxa 2573 (1), pp. 35-56 : 44

Oxychalepus centralis Uhmann 1940a

( Figure 6 )

Oxychalepus centralis Uhmann 1940a: 451 [Holotype: Paraguay, Chaco, Nanawa, A. Pride (DEI)]. Uhmann 1957a: 108 (catalog), 1957b: 2 (faunal list); Blackwelder 1946: 728 (faunal list); Papp 1953: 85 (catalog); Gaedike & Döbler 1971: 345 (types); Ramos 1998: 307 ( Brazil species).

Description. Head and scutellum black; pronotum orange with large circular black medial spot, some specimens with lateral margins black; elytra orange with apical ¼ black, anchor-like marking entire or interrupted; venter black with sides of abdomen with small lateral spot on each side, lateral sternite orange. Head: vertex trisulcate; frontal carina straight; clypeus subquadrate, with longitudinal elevations; frons punctate, not projecting. Antenna: antennomeres 1–2 transverse, robust; 3–5 cylindrical, subequal in length; 6 shorter than 5; 11 as long as 3–6 combined. Pronotum: transverse; lateral margin slightly angulate in middle, convergent to apex; anterior angle rounded, without tooth; surface with microsculpture, less so basally; transverse basal impression indistinct; punctures small, indistinct; pronotal length 1.3–1.4 mm (n=7); pronotal width 2.0– 2.1 mm. Scutellum: subcordate; alutaceous. Elytron: 10 rows of punctures plus short scutellar row; lateral margin densely dentate on basal ½, apical ½ with large and small teeth; exterior apical margin rounded with large teeth; intervals 1, 2, and 8 costate, costa on interval 8 interrupted in middle, interval 6 costate at base and apex; elytral length 6.3–7.0 mm; elytral width 3.0– 3.7 mm. Venter: abdominal sterna alutaceous laterally. Leg: femur and tibia punctate; protibia of male with small tooth; metatibia simple. Total length: 7.0– 9.0 mm.

Remarks. This species can be distinguished by the elytra having a scutellar row and by the pronotum with a basal impression.

Host plant. Unknown.

Distribution. Brazil and Paraguay.

Specimens examined. No label data ( DEI) .?: Pindapoy , i.1943 ( USNM) . Brazil. Amazonas: Berba Rio Madeira , ii.1943 ( USNM, DEI) . Minas Gerais: Vicosa , 7.xii.1933 ( USNM) . Rondonia, 62 km SE Ariquemes , 13–25.iv.1992 ( USUC) . Paraguay. Alto Parana: Hohenau ( DEI) . Total : 7 .

Figures

FIGURES 5–8. Habitus of Oxychalepus species. 5. Oxychalepus bisignatus. 6. Oxychalepus centralis. 7. Oxychalepus elongatus. 8. Oxychalepus externus.