Cephaloleia nana Staines

Staines, Charles L. & Garcia-Robledo, Carlos, 2014, The genus Cephaloleia Chevrolat, 1836 (Coleoptera, Chrysomelidae, Cassidinae), ZooKeys 436, pp. 1-355 : 188-189

Taxon classification Animalia Coleoptera Chrysomelidae

Cephaloleia nana Staines sp. n. Fig. 189

Description.

Small; elongate; subparallel; subconvex; head brownish-black; antennae, pronotum, and scutellum brown; elytra yellowish-brown with irregular black diagonal band from suture to puncture row 10; venter and legs yellowish-brown. Head: vertex punctate, medial sulcus absent; frons not projecting; not depressed between eyes. Antenna: reaches to humerus; slender; antennomere 1 incrassate, elongate; 2 subglobose, ¾ length of 1; 3 elongate, slightly longer than 2; 4-10 transverse, subequal in length; 11 2 × length of 10, rounded at apex; 1-2 punctate with scattered setae; 3-11 setose. Pronotum: transverse; lateral margin straight then rounding to anterior angle, canaliculate; anterior angle rounded, slightly produced; posterior angle acute; anterior margin weakly emarginate behind head; disc subconvex; surface irregularly punctate, punctures more dense laterally; basal impression absent; pronotal length 0.7 mm; pronotal width 0.9 mm. Scutellum: pentagonal; impunctate. Elytron: lateral margin straight, smooth, margined from below humerus narrowing toward sutural angle; apex rounded, smooth; suture margined; sutural angle without tooth; humerus rounded, not produced; slightly constricted behind humerus; declivity beginning just behind humerus at puncture row 7 not edged with faint carina; moderately punctate-striate, rows converge and unite apically; elytral length 2.6 mm; elytral width 1.4 mm. Venter: pro- and metasterna impunctate medially, punctate laterally; mesosternum punctate; abdominal sterna punctate, each puncture with pale seta; suture between abdominal sterna 1 and 2 obsolete; apex of sternite 5 emarginate medially in male. Leg: slender; femur and tibia punctate, each puncture with pale seta; tibia with fringe of setae on inner margin of apex. Total length: 3.4 mm.

Etymology.

From nana (Greek and Latin) meaning little for the small size of this species. The name is feminine.

Diagnosis.

This species is one of the yellowish species with black transverse bands with pale lateral margins of the elytra. It can be distinguished from all other species in this color group by the vertex of the head lacking a medial fovea or sulcus, by the lateral margins of the pronotum being canaliculate, by antennomere 2 being subglobose rather than elongate, and by the declivity on the elytra beginning at puncture row 7.

Distribution.

Ecuador.

Type material.

Holotype male: Ecuador, Sucumbios, 9 km SE Lumbaqui, 650 m, 00°01.76'N, 077°17.06'W, VIII-7/8-1998, A. J. Gilbert/ Holotype Cephaloleia nana Staines, des. C. L. Staines 2012 [red label] (CASC); Paratypes (7) (each with Paratype Cephaloleia nana Staines, des. C. L. Staines 2012 [red label]): with same label data as holotype (AJGC, USNM); Ecuador, Orellana prov., EC Yasuni, Rio Tiputini, 00°40'16"S, 76°24'02"W, 200 m, D. W. Windsor lgt., 10.i.2005 [green printed label] (LSC, DWC); Ecuador, Sucumb., Shushufindi, 0°11.06/76°39.0W, 11, 12 August 1997, D. M. Windsor (BMNH, LSC, DWC).