Cephaloleia angustacollis Staines

Staines, Charles L. & Garcia-Robledo, Carlos, 2014, The genus Cephaloleia Chevrolat, 1836 (Coleoptera, Chrysomelidae, Cassidinae), ZooKeys 436, pp. 1-355 : 59-60

Taxon classification Animalia Coleoptera Chrysomelidae

Cephaloleia angustacollis Staines sp. n. Fig. 71

Description.

Elongate; subdepressed; pale yellow; antennomeres 1-9 slightly darker; eyes black; pronotum with black demilune-shape behind head; elytra with wide black transverse band behind middle, dark macula laterally on humerus, and elongate dark macula covering puncture rows 9 and 10 from humerus to just before middle. Head: vertex finely punctate, oval basal fovea present medially, medial sulcus present; triangular projection present between antennal bases; frons not projecting; not depressed between eyes. Antenna: reaches to humerus; antennomeres 1-4 elongate; 2 ¾ length of 1; 3 longer than 1; 4 subequal in length to 2; 5-10 subequal in length and width, each widened apically, each shorter than 4; 11 2 × length of 10, rounded at apex; 1-4 punctate with scattered setae; 5-11 setose. Pronotum: transverse; lateral margin straight then rounding to anterior angle, canaliculate; anterior angle rounded, not projecting; posterior angle acute; anterior margin straight; longitudinal sulcus present medially; disc flattened, virtually im punctate; basal impression absent; pronotal length 1.9-2.0 mm; pronotal width 1.9-2.0 mm. Scutellum: pentagonal; impunctate. Elytron: lateral margin straight, smooth, narrowly margined; apex rounded; small tooth present in sutural angle; humerus rounded, not produced; slightly constricted behind humerus; moderately punctate-striate, punctures confused apically; elytral length 6.4 mm; elytral width 2.4-2.7 mm. Venter: prosternum impunctate medially, punctate laterally; meso- and metasterna impunctate; abdominal sterna impunctate; suture between abdominal sterna 1 and 2 obsolete; sterna 2-4 each with shallowly curved transverse plica medially; sternite 5 with scattered setae apically, apical margin rounded in female, emarginate medially in male. Leg: slender; impunctate; tibia with fringe of setae on inner margin of apex. Total length: 9.1-10.3 mm.

Etymology.

A combination of angustus (Latin) meaning narrow and collis (Latin) meaning neck for the narrow pronotum in this species. The name is feminine.

Diagnosis.

This is one of the mostly yellowish species with black pronotal markings, black transverse elytra bands and pale lateral margins of the elytra. It can be distinguished from all other species with this color pattern by the medial fovea on the vertex of the head.

Host plant.

Accodring to label data adults have been collected on Calathea sp. ( Marantaceae ).

Distribution.

Ecuador.

Type material.

Holotype male: Holotype Ecuador, Napo, Mishualli nr. Tena, 3-8 October 1999, Steven R. Keller/ Cephaloleia angustacollis Staines, des. C. L. Staines 2012 [red label] (BYUC). Paratypes (5) (each with Paratype Cephaloleia angustacollis Staines, des. C. L. Staines 2012 [red label]): Ecuador, Sucumbios, Shushufindi, 215 m, 00°0.96'S, 76°38.95'W, VIII-11-1997, Fred G. Andrews (AJGC, USNM); Ecuador, Orellana DF, EC Yasuni, Rio Tiputini, 00°40'16"S, 76°24'02"W, 26.ii-4.iii.2007, MAR. Calathea sp., D. Windsor lgt. [green printed label] (LSC); Ecuador, Napo, Yasuni, 215 m, 0° 40.55S, 76° 38.8W, 13-18 August 1997, D. M. Windsor (DWC).