Marganana (Marganana) mexicana DeLong & Freytag, 1963

Gonçalves, Clayton C., Domahovski, Alexandre C., Mejdalani, Gabriel & Takiya, Daniela M., 2021, Three new genera from South America and some taxonomic changes in Gyponini (Insecta: Hemiptera: Cicadellidae), European Journal of Taxonomy 750, pp. 70-93 : 87-89

Marganana (Marganana) mexicana DeLong & Freytag, 1963

Fig. 7

Marganana (Marganana) mexicana DeLong & Freytag, 1963: 260 , pl. I fig. 4, pl. II figs 6–11, 24.

Freytagana gibsoni DeLong, 1975: 409 ; figs 1–8. Syn. nov.

Material examined

Holotype MEXICO • ♂; Mexico, Puebla, Necaxa ; 27 Oct. 1945; DeLong, Hershberger, Stone and Elliot leg.; OSUC-0169614 .

Other material

MEXICO • ♂, holotype of Freytagana gibsoni ; Mexico, Rte. 190, 28 mi. E of Mexico City; 28 Jul. 1965; P.H. Freytag and L.P. Gibson leg.; OSUC-0158615 .

Remarks

Margana was erected by DeLong (1942) to accomodate the type species, Ponana marginifrons var. suilla Ball, 1935 , from Arizona, USA. A few years later, DeLong (1948) proposed a new name for the genus, Marganana , because the previous name had already been taken by a genus of Lepidoptera Linnaeus, 1758 . DeLong & Freytag (1963) erected a new subgenus, Declivana and two new species, Marganana (Marganana) mexicana from Mexico and Marganana (Declivana) equata from Guyana. According to DeLong (1942) and DeLong & Freytag (1963), Marganana differs from other Gyponini genera by the following characteristics: (1) crown short and broad, with transversely striated surface; (2) ocellus closer to median line than to adjacent eye; (3) transition crown-face with thickened margin and carinate; (4) face short and broad; (5) pronotum broad and slightly wider than head; (6) forewing long and narrow, with venation normal to reticulated, with veins wide, conspicuous, and dark margined, and appendix developed; (7) hind tibia without outer secondary setae; and (8) aedeagus simple, without basal processes.

The monotypic genus Freytagana was erected by DeLong (1975) to accomodate the type species, Freytagana gibsoni DeLong, 1975 , from Mexico. According to that author, Freytagana differs from other gyponines by the following set of characteristics: (1) crown short and broad, with anterior and posterior margins almost parallel; (2) ocellus closer to median line than to adjacent eye; (3) transition crown-face distinct and thick; and (4) forewing long and narrow, with venation reticulated, and slight appendix.

Based on the original descriptions of the genera and a detailed study of the holotypes of the two included species, we conclude that there are no characters that distinguish Freytagana from Marganana . Therefore, we suggest that Freytagana be treated as a junior synonym of Marganana . In addition, considering the distribution data (the holotype of F. gibsoni and several paratypes of M. mexicana are from the same locality – Mexico City), forewing venation, and male terminalia ( Fig. 7A–H, I–P ), we concluded that holotypes of F. gibsoni and M. mexicana are conspecific, so that the former should be treated as a junior synonym of the latter. We note that the holotype of F. gibsoni has its aedeagus shaft damaged and twisted, besides being strongly bent ventrally at apical half. This may be the reason why DeLong did not treat them as the same species.

Figures

Fig. 7. Marganana (Marganana) mexicana DeLong & Freytag, 1963. A–H. Holotype, ♂ (OSUC-0169614). A. Dorsal habitus. B. Lateral habitus. C. Labels. D. Pygofer, valve, and anal tube, lateral view. E. Subgenital plate, ventral view. F. Style, lateral view. G. Aedeagus, posterior view. H. Aedeagus, lateral view. – I–P. ♂, holotype of Freytagana gibsoni DeLong, 1975 (OSUC-0158615). I. Dorsal habitus. J. Lateral habitus. K. Labels. L. Apical portion of pygofer, lateral view. M. Subgenital plate, ventral view. N. Style, lateral view. O. Aedeagus, posterior view. P. Aedeagus, lateral view. Scale bars: A–B, I–J = 2.0 mm; D–H, L–P=0.5 mm.