A new species of Charinus Simon 1892 from Brazil, with notes on behavior (Amblypygi, Charinidae)

Abstract

A new species of Charinus is described and illustrated from the Brazilian Atlantic Forest. Charinus ruschii sp. n. is found in Santa Lúcia reserve, Espírito Santo state, and is sympatric with Charinus brasilianus and Charinus montanus. The new species can be easily distinguished from the other species of the genus by the combination of the following characters: number of spines on the pedipalp tarsus, size and shape of the female genitalia, shape of the sternum and number of teeth in the cheliceral claw. The behavioral repertory is also described for this species based on five hours of qualitative and 24 hours of quantitative observations in order to define the behavioral categories. Five behavioral categories were detected and 21 behavioral acts. The most conspicuous category was Immobility, followed by Antenniform leg movement, Environmental exploration, Self-grooming, and Feeding. It was also found that juveniles spend longer time inside the shelter, even during peaks of adult activity, which could be related to a survival strategy.

A new species of Charinus Simon, 1892 (Arachnida: Amblypygi: Charinidae) from Israel and new records of C. ioanniticus (Kritscher, 1959)

“…A similar distribution is also observed in the Caribbean C. acosta (Quintero, 1983), another parthenogenetic species able to live in anthropic areas (Armas 2000;Teruel 2011), and the Amazonian C. vulgaris Miranda & Giupponi, 2011, which is not found inside buildings, but in secondary forests and scrapyards (Miranda & Giupponi 2011). Prior to this study, most of the specimens from Israel were collected from a sewerage system in a single neighborhood in the city of Jerusalem (Judaean Mountains, central Israel).…”

Systematic revision of the pantropical whip spider family Charinidae Quintero, 1986 (Arachnida, Amblypygi)

“…Based on Miranda et al (2016c), this species may be separated from other Charinus in eastern South America by means of its large size, with carapace ca 80% wider than that of the closely related species, C. brasilianus and C. montanus, the unique small platelets of the sternum, the sucker-like female gonopod, the presence of ten teeth on the cheliceral claw and three spines on the pedipalp tarsus; and the similar length of the proximal article to subsequent articles of the leg I tarsus.…”

“…See Miranda et al (2016c) for details of the natural history of this species. Vasconcelos & Ferreira, 2017 Fig.…”

“…Despite the lack of venom, amblypygids appear menacing and are widely feared (Pike 1872; Armas & Abud Antun 2000;Jiménez & Llinas-Gutiérrez 2005). Little is known about their biology, but all are nocturnal predators (Weygoldt 2000a;Chapin & Hebets 2016;Miranda et al 2016c).…”

Bat necrophagy by a whip-spider (Arachnida, Amblypygi, Phrynidae) in a cave in the eastern Brazilian Amazon

“…A abundância de nutrientes na carcaça deve favorecer este comportamento oportunístico em cavernas, especialmente quando se considera a habitual escassez de recursos tróficos destes ambientes subterrâneos, quando comparados a ambientes epígeos. PALAVRAS-CHAVE: Heterophrynus longicornis, Chiroptera, caverna, comportamento alimentar Bat necrophagy by a whip-spider (Arachnida: Amblypygi: Phrynidae) in a cave in the eastern Brazilian Amazon ACTA AMAZONICA Amblypygi is an arachnid order with approximately 200 described species Miranda et al 2016). The order is widely distributed, but it is more abundant in tropical regions (Weygoldt 2000).…”