Loretoniscus mashiriaensis Ocampo-Maceda, Lopez-Orozco & Campos-Filho 2023, gen. et sp. nov.
Creators: name: Ocampo-Maceda, Ana Teresa
name: López-Orozco, Carlos Mario
name: López-Tejeda, Evaristo Luciano
name: Campos-Filho, Ivanklin Soares
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Pudeoniscidae
Loretoniscus
Loretoniscus mashiriaensis

description: Loretoniscus mashiriaensis Ocampo-Maceda, López-Orozco & Campos-Filho gen. et sp. nov.
urn:lsid:zoobank.org:act: 64308EDB-88C0-4430-AF2E-F203B27B3268
Figs 1–4
Etymology
The epithet refers to a stream flowing near the collection site ‘Quebrada Mashiría’. In the ShipiboConibo language, ‘Mashi’ means sand.
Material examined
Holotype PERU • ♂ (parts in micropreparations); Loreto, Contamana, Nuevo Sucre, Quebrada Mashiría; 7°24′47.21′ S, 74°56′8.51′ W; Nov. 2019; A. Ocampo and C. Ruelas leg.; MUSA-ENT-ISO 025.
Description
MEASUREMENTS. Body length: 3 mm.
BODY. Colorless. Body outline in lateral view as in Fig. 1A; dorsal surface smooth and covered with fan-shaped scale-setae (Fig. 1B).
CEPHALON. Vertex depressed; lateral lobes rounded, frontal shield triangular with frontal and paramedian depressions interrupting frontal shield; eyes absent (Fig. 1C–D).
PEREON. Pereonites 1 and 2 epimera rounded, epimera 3–7 subquadrangular (Fig. 1A, E).
PLEON. Pleonites 3–5 with epimera subquadrangular and directed backward (Fig. 1A, F–G). Telson as wide as long, lateral margins straight, and apex rounded (Fig. 1F–G).
ANTENNULA. Third article longer than second article, apex with four subapical plus two apical aesthetascs (Fig. 1H).
ANTENNA. Robust; surpassing pereonite 2 when extended backward; flagellum with first and second articles subequal in length; apical organ half length of distal article (Fig. 1I).
MOUTH. Mandibles (Fig. 2A–B) with molar penicil with 6–7 branches, left mandible with 2+1 penicils, right with 1 +1 penicils. Maxillula (Fig. 2C) outer endite composed of 4+5 teeth, inner set apically cleft; inner endite with two penicils. Maxilla (Fig. 2D) with bilobate apex, outer slightly wider than inner lobe, rounded and covered with thin setae; inner lobe rounded bearing thick setae. Maxilliped (Fig. 2E) basis rectangular; palp basal article with two distinct setae; endite rectangular, medial seta surpassing distal margin, distal margin bearing one seta on outer portion.
UROPODS. Uropod protopod longer than wide, exopod longer than endopod, endopod inserted slightly proximally (Fig. 2F).
PEREOPODS. Pereopods 1–7 (Fig. 3A–B) merus and carpus with sparse setae on sternal margin; carpus 1 with longitudinal antennal grooming brush; dactylar and ungual seta simple not surpassing outer claw.
GENITAL PAPILLA. Ventral shield triangular, papilla bearing two subapical orifices (Fig.3C).
PLEOPODS. Pleopod 1 (Fig. 3C) exopod subrectangular, more than twice as wide as long, distal margin straight; endopod twice as long as exopod, distal portion tapering and slightly bent outwards, inner margin bearing small setae. Pleopod 2 (Fig. 3D) exopod triangular, outer margin almost straight bearing one seta. Pleopod 3–5 exopods as in Fig. 3E–G.
description: Published as part of Ocampo-Maceda, Ana Teresa, López-Orozco, Carlos Mario, López-Tejeda, Evaristo Luciano & Campos-Filho, Ivanklin Soares, 2023, First record of Pudeoniscidae Lemos de Castro, 1973 (Oniscidea) from Peru, with the description of a new genus and species, pp. 65-77 in European Journal of Taxonomy 861 on pages 68-70, DOI: 10.5852/ejt.2023.861.2067, http://zenodo.org/record/7728898