Cephaloleia bucki Uhmann, 1957b

Staines, Charles L. & Garcia-Robledo, Carlos, 2014, The genus Cephaloleia Chevrolat, 1836 (Coleoptera, Chrysomelidae, Cassidinae), ZooKeys 436, pp. 1-355 : 84-85

Taxon classification Animalia Coleoptera Chrysomelidae

Cephaloleia bucki Uhmann, 1957b Fig. 91

Cephaloleia bucki Uhmann 1957b: 36. Buck 1958: 146 (host plant); Uhmann 1964a: 403 (catalog); Gaedike and Döbler 1971: 345 (types); Staines 1997 b: 413 (Uhmann species list); Staines and Staines 1997: 4 (types).

Description.

Elongate; subdepressed; shining; brownish-yellow; head black; pronotum black with brownish-yellow lateral margin; antennomeres 8-11 darker. Head: vertex finely punctate, medial sulcus absent; eye convex; frons not projecting; slightly depressed between eyes. Antenna: as long as head and pronotum combined; robust, cylindrical; antennomere 1 subequal to 3; 2 shorter than 1; 4-5 subequal in length, slightly longer than wide, each shorter than 3; 6-10 subequal in length, each shorter than 5; 11 2 × length of 10, acutely pointed at apex; 1-2 punctate with scattered setae; 3-11 setose. Pronotum: transverse; lateral margin sinuate basally then straight and rounding to anterior angle, slightly canaliculate; anterior angle rounded, not produced; posterior angle acute; anterior margin curved anteriorly; disc subconvex, nearly impunctate; surface sparsely, irregularly punctate, punctures larger and denser basally; transverse basal impression present medially; pronotal length 1.0-1.1 mm; pronotal width 1.3-1.4 mm. Scutellum: pentagonal; impunctate. Elytron: lateral margin straight, smooth, margined; apex rounded; sutural angle without tooth; humerus rounded, not produced; slightly constricted behind humerus; subconvex; finely punctate-striate; elytral length 2.9-3.0 mm; elytral width 1.3-1.4 mm. Venter: pro-, meso-, and metasterna punctate; abdominal sterna punctate, each puncture with pale seta; suture between sterna 1 and 2 complete; male with apical margin of sternite 5 broadly rounded, female strongly truncate, convex medially. Leg: slender; punctate; femur and tibia with pale seta in each puncture; tibia with fringe of setae on inner margin of apex. Total length: 3.9-4.0 mm.

Diagnosis.

This species is most similar to Cephaloleia approximata . It can be distinguished by the vertex of the head without a medial carina or sulcus and by the elytra not being slightly costate apically.

Host plant.

Carex sp. ( Cyperaceae ) ( Buck 1958).

Distribution.

Brazil (Rio Grande do Sul).

Type material examined.

Holotype: Brazil, Rio Grande do Sul, Villa Oliva, 4.XI.1952/28.I.1954, Buck [printed label]/ Holotypus [red printed label]/ Cephaloleia bucki Uh., Det. E. Uhmann (DEI).

Specimens examined.

Brazil: Río Grande do Sul- Dios Immaos, 25 May 1940 (USNM); Porto Alegre (USNM); Villa Oliva, 4 November 1952 (DEI). Total: 3.