Taxon classification Animalia Coleoptera Chrysomelidae

Cephaloleia gracilis Baly, 1878 Fig. 153

Cephaloleia gracilis Baly1878: 41. Donckier 1899: 549 (catalog); Weise 1911a: 8 (catalog), 1911b: 13 (catalog).

Cephaloleia gracilis Baly. Uhmann 1957b: 20 (catalog); Staines and Staines 1999: 524 (Baly species list).

Description.

Small; slender; elongate; subdepressed; dark chestnut brown; elytra with ivory white vitta from humeri to apical ¼ between puncture rows 2-5; basal 5 antennomeres reddish-black, rest black; legs reddish. Head: vertex deeply punctate, with medial carina; frons not projecting; slightly depressed between eyes. Antenna: reaches beyond humerus; slender; antennomere 1 subincrassate, 2 × length of 2; 2 subglobose; 3 cylindrical, elongate, subequal in length to 2; 4 cylindrical, elongate, 1½ length of 3; 5-10 elongate, decreasing in length; 11 longer than 10, rounded at apex; 1-3 punctate; 4-11 setose. Pronotum: quadrate; lateral margin straight then rounding to anterior angle, margined; anterior angle rounded; posterior angle acute; anterior margin straight; basal margin biangulate; disc moderately convex; surface moderately densely punctate; basal impression absent; pronotal length 0.9 mm; pronotal width 1.0 mm. Scutellum: pentagonal; impunctate. Elytron: lateral margin straight, smooth, converging toward apex; apex truncate; sutural angle with small tooth; humerus slightly angulate; moderately punctate-striate; elytral length 3.3 mm; elytral width 1.2 mm. [Venter and legs obscured by card]. Total length: 4.5 mm.

Diagnosis.

This species is similar to Cephaloleia formosus and Cephaloleia vagelineata . It can be distinguished by the smooth lateral margins of the pronotum.

Distribution.

Amazonas.

Type material examined.

Holotype: Amazons [handwritten label]/ Cephaloleia gracilis Baly, Amazons [blue handwritten label] (BMNH).