Chimoptesis castanescens, Razowski, Józef & Becker, Vitor Osmar, 2015

Razowski, Józef & Becker, Vitor Osmar, 2015, Systematics and faunistics of Neotropical Eucosmini. 1. Chimoptesis Powell, 1964 (Lepidoptera: Tortricidae), Zootaxa 3941 (2), pp. 204-220 : 209-210

Chimoptesis castanescens , sp. n.

Figs 8 , 21 , 42 , 43

Diagnosis. C. castanescens is very closely related to C. caera , but C. castanescens has smaller, triangular socii, an oblique proximal edge of the distal portion of the costa, and a broader subterminal part of the cucullus.

Description. Wing span 19 mm. Male: Head pale brownish grey, thorax darker brown. Forewing termen slightly concave. Ground colour cream, forming two weak dorsal patches, the posterior suffused yellow-brown; otherwise strongly suffused brownish with browner strigulation; costal strigulae small; divisions brown; terminal area rust brown; ocellus slightly paler than adjacent ground colour; markings brownish, diffuse. Ground colour variable, more or less dark in some specimens; cream strigulated brown in pale specimens; brown markings often with rust suffusions. Cilia brown-grey. Hindwing cream brown, cilia creamer. Genitalia ( Fig. 8 ) with uncus small, straight apically; socius triangular; valva with an oblique proximal edge of distal half of costa, broad subterminal part of cucullus; aedeagus simple, slender.

Female: Head and thorax as in male. Genitalia ( Fig. 21 ) with posterior edge of sterigma nearly straight; antrum sclerite short, tapering proximally; folds of subgenital sternite slender, straight; cingulum long; signa slender.

Holotype male: " Mexico: Chiapas, San Cristobal de las Casas, 2300 m, 23–27. VI. 1981, V.O. Becker Col; Col.

Becker 43774"; GS 844 WZ. Six male paratypes with same data, one female with GS 843 ZW and Colln Nr. 43775.

Etymology. The name refers to the forewing colour; Latin: castanescens—chestnut colour.

Figures

FIGURES 7 – 12. Male genitalia of Chimoptesis. 7, Chimoptesis caera (GS 832 WZ), 8, Chimoptesis castanescens (GS 844 WZ), 9, Chimoptesis cornigera (GS 1345 WZ), 10, Chimoptesis setoses (GS 1255 WZ), 11, Chimoptesis tamaulipasia (GS 969 WZ), 12, Chimoptesis juniptesis (GS 1011 WZ).

FIGURES 20 – 26. Female genitalia of Chimoptesis. 20, Chimoptesis dentitia (GS 849 WZ), 21, Chimoptesis castanescens (GS 843 WZ), 22, Chimoptesis albomixta, (GS 859 WZ), 23, Chimoptesis cornigera (GS 1346 WZ), 24, Chimoptesis mitrion (GS 1343 WZ), 25, Chimoptesis zoquiapana (GS 829 WZ), 26, Chimoptesis rufobrunnea (GS 856 WZ).

FIGURES 35 – 42. Adults of Chimoptesis. 35, Chimoptesis potosiana (paratype female), 36, Chimoptesis obliquaria (holotype male), 37, Chimoptesis angulata (holotype male), 38, Chimoptesis dentitia (holotype male), 39, Chimoptesis dentitia (paratype female), 40, Chimoptesis faceta (holotype male), 41, Chimoptesis caera (holotype male), 42, Chimoptesis castanescens (holotype male).

FIGURES 43 – 50. Adults of Chimoptesis. 43, Chimoptesis castanescens (paratype female), 44, Chimoptesis albomixta, (holotype female), 45, Chimoptesis cornigera (holotype male), 46, Chimoptesis cornigera (paratype female), 47, Chimoptesis mitrion (holotype female), 48, Chimoptesis setoses (holotype male), 49, Chimoptesis tamaulipasia (holotype male), 50, Chimoptesis juniptesis (holotype male).