Two new species of Passalus Fabricius (Coleoptera: Passalidae) from the western Brazilian Amazon with comments on the taxonomic limits of the subgenera

Abstract

Passalus Fabricius, 1792 is the largest genus of Passalidae and presents great diversity in South America, mainly in the Amazon region. Currently this complex and heterogeneous genus is subdivided into three subgenera: P. (Pertinax) Kaup, 1869, P. (Mitrorhinus) Kaup, 1871, and P. (Passalus). Herein, two new species of Passalus from the western region of the Brazilian Amazon, a diverse but poorly studied area, are described and illustrated. The new species Passalus (Pertinax) deuterocerus sp. nov. and Passalus (Passalus) cleidecostae sp. nov. are compared with similar species occurring in nearby regions. Also, the diagnostic characters used to define the subgenera and sections of Passalus are summarized.

Hexapoda Yearbook (Arthropoda: Mandibulata: Pancrustacea) Brazil 2020: the first annual production survey of new Brazilian species

“…A total of 680 new Brazilian species of Hexapoda were described in 2020, which are distributed among 245 genera, 112 families and 18 orders. These new species were published in a total of 219 papers (alencar & aZevedo 2020;almeida et al 2020aalvarado 2020;alveS et al 2020;ament et al 2020;amorim et al 2020;antuneS & takiya 2020;araujo & bravo 2020;Ávila Júnior et al 2020;baker & Haraty 2020;barboSa et al 2020;barbut 2020;barroS et al 2020abravo et al 2020;bellini et al 2020abenetti et al 2020abevilaqua & fonSeca 2020;biffi 2020biffi , biffi & GeiSer 2020braGa & ferreira-jr 2020;brown et al 2020;buSanello et al 2020;camacHo et al 2020;camarGo et al 2020;camarGoS et al 2020;camPaner & will 2020;camPoS et al 2020;caron et al 2020;carvalHo et al 2020;caSadei-ferreira et al 2020;caStro-HuertaS et al 2020;caStro-SouZa et al 2020acaterino & tiSHecHkin 2020;ceGolin et al 2020;cHaul 2020;ciPola et al 2020;clarkSon et al 2020;conStantini et al 2020;coSta et al 2020;curletti 2020;…”

The Brachypterous Species of Passalus (Pertinax) (Coleoptera: Passalidae), with the Description of a New Species from Sierra Nevada de Santa Marta, Colombia

“…Passalus comprises 171 species: 81 in P. (Pertinax), 11 in P. (Mitrorhinus), and 79 in P. (Passalus) (Bevilaqua and Fonseca 2020). Passalus (Mitrorhinus) does not have flightless species, while in P. (Passalus) the brachypterous species are in the 'Petrejus' group; of the 33 species, about 6 have wing reduction, although the correct number may be higher, and in Passalus (Pertinax), 11 of its 81 species are brachypterous.…”

“…( Pertinax ), 11 in P. ( Mitrorhinus ), and 79 in P . ( Passalus ) (Bevilaqua and Fonseca 2020 ). Passalus ( Mitrorhinus ) does not have flightless species, while in P .…”