Prexaspes quadratus, (BATES, 1865) AND
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998F55DF-A153-4E8D-BA31-697D011F2CA2 |
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lsid:zoobank.org:pub:998F55DF-A153-4E8D-BA31-697D011F2CA2 |
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https://treatment.plazi.org/id/03C787E0-FFCA-FFE9-020A-F921762CBB4D |
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Plazi |
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Prexaspes quadratus |
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PREXASPES QUADRATUS ( BATES, 1865) AND View in CoL PREXASPES PAULENSIS ( REHN, 1918)
Prexaspes quadratus View in CoL was originally described as Phasma Lichtenstein, 1796 ( Bates, 1865) View in CoL and transferred to Paraphasma View in CoL by Redtenbacher (1906), who ignored the previous assignment of this species to Prexaspes View in CoL by Kirby (1904a). Prexapes paulensis was originally described as Paraphasma View in CoL by Rehn (1918). Both species were recently transferred from Paraphasma View in CoL to Prexaspes View in CoL by Conle et al. (2020) – in the case of P. quadratus View in CoL , re-establishing a combination originally proposed by Kirby (1904a).
The changes performed by Conle et al. (2020) are corroborated by our phylogenetic hypothesis, which shows a clade formed by the two species plus Prexaspes sp. ( Fig. 25: clade E), with RBS = 14 and nine synapomorphies (although only one exclusive, i.e. character 31:1), distant from the Paraphasma View in CoL clade. The general morphology of P. quadratus View in CoL and P. paulensis is indeed typical of many Prexaspes species , with specimens of both sexes small and slender, body with cryptic tones of green or brown, tegmina fairly elongate and bearing a sharp spine (Supporting Information, Fig. S6), and male subgenital plate not convex and with a pair of slender lateral projections covered by tergum IX ( Figs 19F, 20G). The historical assignment of these two species to Paraphasma View in CoL is probably due to some superficial similarities between Prexaspes View in CoL and Paraphasma View in CoL , such as the absence of the ventromedian carina on the meso- and metafemur, the (frequently present) tegmina spine and the delicate aspect of most species. Nevertheless, these genera differ markedly in the terminalia of both sexes and in the phallic organ morphology.
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Prexaspes quadratus
Chiquetto-Machado, Pedro I. & Cancello, Eliana M. 2021 |
Paraphasma
Redtenbacher 1906 |
Paraphasma
Redtenbacher 1906 |
Paraphasma
Redtenbacher 1906 |
Paraphasma
Redtenbacher 1906 |
Paraphasma
Redtenbacher 1906 |
Paraphasma
Redtenbacher 1906 |
Prexaspes
Stal 1875 |
Prexaspes
Stal 1875 |
Prexaspes
Stal 1875 |
Phasma
Lichtenstein 1796 |