Lutosa paranensis Rehn, 1911

Cadena-Castañeda, Oscar J., García, Alexander García, Nos, Maria Del Pilar Castella-, Sarmiento, Juan Pablo Prias & Tavares, Gustavo Costa, 2022, Studies on chevron crickets: Contribution to the knowledge of Lutosinae / ini taxa (Orthoptera: Anostostomatidae), Zootaxa 5178 (4), pp. 347-379 : 365-367

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Lutosa paranensis Rehn, 1911


Lutosa paranensis Rehn, 1911

( Fig. 10 View FIGURE 10 ) Orthoptera

Lutosa surda Gorochov, 2001 n. syn.

Comments. It is worth noting that in the original description of L. paranensis only the male is described. Unfortunately, nether the presence nor absence of the tympana in the fore tibiae nor the structures of the terminalia are mentioned. However, in an exchange of messages a few years ago with Jason Weintraub (ANSP curator), the absence of tympana to the type specimen was revealed. (This afirmation is confirmed by Tony Robillard, who very kindly sent us some additional images from the holotype in 2022). On the other hand, L. surda is described based on a female without tympana. When comparing with both specimens and with the Morselli’s unpublished thesis (2010), we conclude that the type specimens of both species are conspecific. Morselli studied and identified males and females as L. surda n. syn., which fit in the morphology of L. paranensis , the older name.

In MNHPY, there is a female ( Fig. 10 View FIGURE 10 ) with the same data presented by Rehn (1911) in the original description of L. paranaensis ( Paraguay, Puerto Bertoni), also with the same collection number “410” as the holotype male, which suggests that they were collected at the same time. The female examined fits the characters of L. surda n. syn., as occurs with the males and females studied by Morselli (2006, 2010), supporting our hypothesis of synonymy between both species. Additionally, one of the labels of the holotype of L. paranaensis indicates that the collector was Schrottky (Curt Schrottky (1874–1937)), a Russian entomologist who resides in South America, and was the son-in-law of Moisè Giacomo (Moisés Santiago) Bertoni (1857–1929) and brother-in law of Arnoldo de Winkelried Bertoni (1878–1973) ( Rasmussen et al., 2009), with whom he carried out the expeditions in which the specimens of L. paranaensis were collected, and other material sent to Rehn (published in 1911). However, they always kept specimens as backup in their personal collections. For this reason, we believe Schrottky and Bertoni only collected a male and a female of the species, and sent to Rehn only the male (now holotype), keeping with them the female studied here (B. Garcete-Barrett pers. comm.).

On the other hand, the type locality of the two species is the same, Puerto Bertoni ( Paraguay), although it has recently been recorded for northern Argentina and Brazil ( Morselli 2010, Zubarán & Braun 2018). Apparently, this species is not the only one without tympana, there are others not described with the same condition, which are distributed further north in the Atlantic Forest ( Morselli 2006, 2010).