Abstract
Campylothorax viruaensis sp. nov., a new species of paronellid springtail from the Amazon Rainforest, state of Roraima, Brazil, is herein described and illustrated. The new species is characterized by: pale yellow body with dark blue pigment on abdomen III and IV; dorsal chaetotaxy presenting S5i macrochaeta on head, mesothorax with 6-8 macrochaetae in p1-4 complex; A5 as macro or microchaeta on abdomen IV; collophore anterior side with 4+4 anterior long chaetae; and mucro with five teeth. Other characteristics usually omitted in traditional descriptions for the genus are presented such as morphology of apical region of third and fourth antennal segments, labial papillae, chaetotaxy of subcoxae, collophore, abdomen V and ventral region of head. Trunk specialized chaetae (S-chaetae) are also presented. Campylothorax viruaensis sp. nov. is the fourth record of Campylothorax from Brazil, the second from the Brazilian Amazon Rainforest and the first from the state of Roraima.
Highlights
Campylothorax Schött, 1893 is a small genus of large epiedaphic paronellid springtails that are mostly found over dead litter and vegetation (Bellinger et al 2016)
Among the species cited above, only C. schaefferi had been previously found in Northern Brazil (Abrantes et al 2012)
We describe a new species of Campylothorax from the Amazon Rainforest of the state of Roraima, Northern Brazil, and add new characteristics to the generic diagnosis
Summary
Specimens were collected with pitfall traps, preserved in 70% ethanol, clarified with potassium dichromate and hydrochloric acid, and mounted on glass slides with Arlé’s liquid following the procedures described in Arlé & Mendonça (1982). Habitus was photographed in ethanol gel using a DFC420 digital camera attached to a stereomicroscope. Photographs were digitally corrected using the Leica Application Suite V3.4.1. The overall morphology was described based on specimens of the entire type series. The dorsal chaetotaxy schemes follow Szeptycki (1979), Mitra & Dalai (1980), Mari Mutt (1987), Soto-Adames et al (2014) and Soto-Adames (2016); trunk specialized chaetae (S-chaetae) follow Zhang & Deharveng (2015); labial chaetotaxy follows Gisin (1964) and labial papilla follows Fjellberg (1999). Type material is deposited at the Invertebrate Collection of Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, state of Amazonas, Brazil.
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