Prexaspes quadratus, (BATES, 1865)

Chiquetto-Machado, Pedro I. & Cancello, Eliana M., 2021, Cladistic analysis of Paraphasma (Phasmatodea: Pseudophasmatidae) highlights the importance of the phallic organ for phasmid systematics, Zoological Journal of the Linnean Society 193 : -

publication ID

998F55DF-A153-4E8D-BA31-697D011F2CA2

publication LSID

lsid:zoobank.org:pub:998F55DF-A153-4E8D-BA31-697D011F2CA2

persistent identifier

https://treatment.plazi.org/id/1038878A-025B-FF90-A84B-4EDAFEE1FBC8

treatment provided by

Felipe

scientific name

Prexaspes quadratus
status

 

PREXASPES QUADRATUS ( BATES, 1865) View in CoL AND 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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Phasmida

Family

Pseudophasmatidae

Genus

Prexaspes

Loc

Prexaspes quadratus

Chiquetto-Machado, Pedro I. & Cancello, Eliana M. 2021
2021
Loc

Paraphasma

Redtenbacher 1906
1906
Loc

Paraphasma

Redtenbacher 1906
1906
Loc

Paraphasma

Redtenbacher 1906
1906
Loc

Paraphasma

Redtenbacher 1906
1906
Loc

Paraphasma

Redtenbacher 1906
1906
Loc

Paraphasma

Redtenbacher 1906
1906
Loc

Prexaspes

Stal 1875
1875
Loc

Prexaspes

Stal 1875
1875
Loc

Prexaspes

Stal 1875
1875
Loc

Phasma

Lichtenstein 1796
1796
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