A new genus and two new species of Opilioacaridae (Acari: Parasitiformes) from Amazonia, Brazil with a key to world genera

Author(s)

Magdalena Vazquez, Ma ^[1] ; De Araujo, Marcel Santos ^[2] ; Fazzio Feres, Reinaldo Jose ^[3]

Affiliation

^[1] Univ Quintana Roo, Div Ciencias & Ingn, Chetmal, Quintana Roo - Mexico

^[2] Univ Estadual Paulista UNESP, IBILCE, Dept Zool & Bot, Programa Posgrad Biol Anim, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

^[3] Univ Estadual Paulista UNESP, Inst Biociencias Letras & Ciencias Exatas IBILCE, Dept Zool & Bot, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

• Document type: Journal article
• Source: Zootaxa; v. 3814, n. 2, p. 151-176, JUN 9 2014.
• Web of Science Citations: 9

Abstract

Collections of Opilioacaridae made close to 50 years ago in Manaus in the Amazonian Region have allowed the description of a new genus and two new species from Brazil, Amazonacarus setosus n. gen, n. sp. and A. paraensis n. gen, n. sp. These species show a unique combination of characters in the Opilioacaridae: a high number of foliate setae (10) on the palp tarsus with each seta bearing many lobes (6-7), a group of large, serrate setae (26-31) on the palp tibia (this group of setae is much smaller in other species), and 5-7 dorsal setae on idiosomal segment XVIII. Indiacarus and some Opilioacarus show 3-5 setae on segment XVIII, but these genera (and Caribeacarus) have fewer foliate setae on the palp (3-4). Females of Amazonacarus have an ovipositor of the ``complex{''} type, with spiny projections and 2-4 genital setae, while males have two pairs of rounded, large glands. (AU)

• FAPESP's process: 12/23824-6 - Taxonomic review and phylogenetic analysis of Opilioacaridae With and Neothyridae Lehtinen (Acari: Parasitiformes)
• Grantee: Marcel Santos de Araújo
• Support type: Scholarships in Brazil - Doctorate