Otumba amazonica

Cadena-Castañeda, Oscar J., Quintana-Arias, Ronald Fernando, Infante, Ivette Coque, Silva, Daniela Santos Martins & Tavares, Gustavo Costa, 2025, Studies on pygmy grasshoppers: On the current Metrodorinae sensu lato classification (Orthoptera: Tetrigidae) with emphasis on American and Malagasy taxa, Zootaxa 5597 (1), pp. 1-265 : 157

Otumba amazonica ( Bolívar, 1887)

( Figs. 111 , 112 )

Metrodora amazonica Bolívar, 1887: 249. Lectotype, here designated. Male. ALTO AMAZONAS [ Peru / Brazil], Stauding. Cat. Tipos N ° 58 ( Fig. 111 ). Depository: MNCN.

Otumba amazonica : Günther, 1939: 235.

Remarks. In order to contribute to the stability and delimitation of O. amazonica , selecting a lectotype that meets the original description’s characters is necessary. The specimen deposited in MNCN is chosen as a lectotype (Cat. Tipos N° 58) labeled “ Peru, Alto Amazonas,” with the handwritten label by Bolívar “ Metr. amazonica Bol = Metrodora amazonica Bolívar, 1887 ” (original combination of the species). The other specimens mentioned by Paris (1994) deposited in Madrid (MNCN) and Vienna (NHMW) are considered paralectotypes since they come from the same locality, and their identity is corroborated with photographs uploaded by J. Tumbrinck to OSF ( Fig. 112 ).

The description of O. lobata mentions characters resembling O. amazonica (a species widely distributed in the Amazon between Peru and French Guyana). However, no drawings or photos of the type specimen are available. Its type locality is Guyana, Demerara, and its description, so possibly both species can be synonyms. During visits of Daniela Santos Silva and Josef Tumbrinck to ANSP, the type specimen was not found, perhaps lost. Günther (1939) considers species other than O. amazonica with specimens from San Antonio de Curaray, Ecuador (western Amazon), and O. lobata , with specimens from Paramaribo, Suriname (Guyanese region). Currently, both species are differentiated by the color of the spots or stripes on the tegmina ( Itrac-Bruneau & Doucet, 2022).

Figures

FIGURE 111. Otumba amazonica (Bolívar, 1887). Male lectotype. A. Habitus in lateral and, B. Dorsal view. C. Labels. Photos: M. Paris.

FIGURE 112. Otumba amazonica (Bolívar, 1887). Female paralectotype. A. Habitus in lateral and, B. Dorsal view. C. Frons. D. Labels. Photos: J. Tumbrinck.