Ennya chlorizans Breddin, 1902

Montalvo-Salazar, Jorge L. & López-García, Margarita M., 2024, Contributions on the treehopper genus Ennya Stål, 1866 (Hemiptera: Membracidae) with two new species from Ecuador, Zootaxa 5428 (2), pp. 269-289 : 276-277

Ennya chlorizans Breddin, 1902 stat. rev. ( Figs. 4 , 10A )

Ennya chlorizans Breddin, 1902: 177 ( Figs. 4A–C )

Gelastogonia clorizans Breddin — Funkhouser (1951: 121)

Ennya chrysura Fairmaire Equals Ennya clorizans Breddin — Metcalf & Wade (1965: 1023)

Ennya rufomaculata Fallou Equals Ennya chlorisans [sic] Breddin— Sakakibara (1996a: 95)

Ennya nebulosa Breddin, 1902: 177 syn. nov. ( Figs. 4D–E )

Gelastogonia nebulosa Breddin — Funkhouser (1951: 121)

Ennya chrysura Fairmaire Equals Ennya nebulosa Breddin — Metcalf & Wade (1965: 1023)

Ennya rufomaculata Fallou Equals Ennya nebulosa Breddin — Sakakibara (1996a: 95)

Material examined: Lectotype (photograph) female Ennya chlorizans from ECUADOR: Baños , DEI Hemimetabola #100328 ( SDEI) . Holotype (photography) male Ennya nebulosa from ECUADOR: Baños , DEI Hemimetabola # 100327 ( SDEI) . Additional material: One female (ZSFQ-i12392) and one male (ZSFQ-i12393) from ECUADOR: Napo: Guango Lodge ( ZSFQ) .

Comments: Ennya chlorizans and E. nebulosa were transferred to Gelastogonia Kirkaldy 1904 by Funkhouser (1951), and then both were synonymized under E. chrysura by Metcalf & Wade (1965). More recently, Sakakibara (1996a) considered E. chlorizans and E. nebulosa as junior synonyms of E. rufomaculata but the latter does not belong to the genus Ennya (see below). Ennya chlorizans and E. nebulosa do not belong to Gelastogonia because they lack reticulated pronotal carinae ( Sakakibara, 1996a).

Ennya chlorizans and E. nebulosa are the same species, their primary types representing opposite genders, which may explain the color variation and the small differences in pronotal shape. Such sexual dimorphism has been observed in additional material examined. Moreover, both type specimens were collected in the same location and Ennya chlorizans and E. nebulosa were described in the same manuscript. Following the principle of the first revisor (International Code of Zoological Nomenlature Art. 24.2), we select E. chlorizans to have precedence.

Ennya chlorizans is easily recognizable by the pronotum having the dorsal process trapezoidal, longer than high, with the anterior margin concave with an acute triangular vertex slightly directed backwards, and the posterior margin rounded. It is most similar to E. chrysura but can be distinguished by the uniformly concave anterior margin of the dorsal process which is also not as elevated.

This species is sexually dimorphic in coloration and the shape of the pronotum. Females are mainly yellow with a discontinuous black band and black spots while males are predominantly black. The anterior margin of the dorsal process in females is more concave than in males.

Figures

FIGURE 4. Ennya chlorizans Breddin lectotype female: A. frontal view, B. lateral view, C. labels. Ennya nebulosa Breddin holotype male: D. frontal view, E. lateral view, F. labels. Scale bars: 2 mm. Photos by Arne Köhler © 2023 Senckenberg Deutsches Entomologisches Institut.

FIGURE 10. A. Locality records for the species of Ennya with known distribution in Ecuador (Red star: E. lamariela, Yellow star: E. allkukiru, Black point: E. chlorizans, Pink point: E. funkhouseri, Blue point: E. chrysura, Orange point: E. sobria, Gray point: E. scaromizzonoi), B. Forest patch in Pillaro, C–D. La Mariela forest in Moraspungo (Photo by David Brito).