Ethmia janzeni Powell

Phillips-Rodriguez, Eugenie, Powell, Jerry A., Hallwachs, Winnie & Janzen, Daniel H., 2014, A synopsis of the genus Ethmia Huebner in Costa Rica: biology, distribution, and description of 22 new species (Lepidoptera, Gelechioidea, Depressariidae, Ethmiinae), with emphasis on the 42 species known from Area de Conservacion Guanacaste, ZooKeys 461, pp. 1-86 : 12-13

Taxon classification Animalia Lepidoptera Depressariidae

Ethmia janzeni Powell Figures 10, 55, 100, 151

Ethmia janzeni Powell, 1973: 134-135.

Diagnosis.

Ethmia janzeni is most similar to Ethmia elutella . It can be distinguished by the HW costal hair pencil, which is ochreous in Ethmia janzeni and gray in Ethmia elutella .

Description.

Male: FW length 7.1-7.8 mm (n = 3). Head: Front brownish, crown whitish. Thorax: Collar and tegula white, notum bluish, lateral white. FW costal half grayish, the dorsal area with a large purplish blotch concolorous with termen. HW costal pinch-fold, ochreous hair pencil. Abdomen: Brownish, genital scaling whitish. Genitalia (Fig. 55) with uncus broad hood like; gnathos dentate; basal process broad, valva without small notch distally and apical spine.

Female: FW length 7.9-8.2 mm (n = 3). Head and thorax: As described for male, HW unmodified. Abdomen: Genitalia (Fig. 100) with sterigma as a narrow band; signum a fold without dentate margin.

Holotype.

Male and Allotype female: Mexico, Temescal, Oaxaca, December 12 and 21, 1963, D. H. Janzen [EME, examined].

Distribution and biology.

Ethmia janzeni has been collected from Mexico to San Salvador ( Powell 1973), and in northwestern Costa Rica (Fig. 151) it is found in both slopes of the Cordillera Volcánica de Guanacaste and Península de Nicoya from 20 to 830 m. It has been found in both ACG dry and rain forest. The food plant and immature stages are unknown.