Yuracarus napoensis, Chani-Posse & Rodríguez-Melgarejo & Ramírez-Salamanca, 2025

Chani-Posse, Mariana Raquel, Rodríguez-Melgarejo, Maryzender Erceliz & Ramírez-Salamanca, José Manuel, 2025, Systematics and phylogeny of the Andean genera Konradus Chani-Posse & Ramírez-Salamanca and Yuracarus gen. nov. (Coleoptera: Staphylinidae), Arthropod Systematics & Phylogeny 83, pp. 331-352 : 331-352

publication ID

https://doi.org/10.3897/asp.83.e150304

publication LSID

lsid:zoobank.org:pub:4DE64D12-8127-4F6C-95C0-14CD6FFF21E5

DOI

https://doi.org/10.5281/zenodo.16280377

persistent identifier

https://treatment.plazi.org/id/3974B598-8818-57E7-9057-B7C1B7CCAC1D

treatment provided by

Arthropod Systematics & Phylogeny by Pensoft

scientific name

Yuracarus napoensis
status

sp. nov.

Yuracarus napoensis sp. nov.

Figures 2 E View Figure 2 , 5 K, L View Figure 5 , 6 G View Figure 6 , 7 View Figure 7 , 8 View Figure 8

Type material.

Holotype ♂, with labels: [white printed label] “ ECU. Napo, 10200 ’ / Papallacta / 21. V. 82, H. Frania / canopy dead tree ”, [red label] “ Holotype Yuracarus / napoensis Chani-Posse et al. 2025 ” ( CNC) . Seven paratypes: 2 ♂, 4 ♀ (Fig. 2 E View Figure 2 ) with same data as above , one ♂ with white printed label “ ECU. Napo, Baeza / 7800 ’ 6.VI.1982 / H. Frania, ridge / top leaf litter ” ( CNC) . All paratypes with additional red label: “ Paratype Yuracarus / napoensis Chani-Posse / et al. 2025 ”.

Diagnosis.

Yuracarus napoensis can be identified among other species of Yuracarus by the following combination of characters: antennomeres 8–10 quadrate, eyes at least 0.6 × the length of the temples, the distance separating the medial interocular punctures on the frons 3 × distance separating the medial punctures from the lateral punctures, and the head narrower than pronotum (HW / PW = 0.9).

Description.

Body length 9.6–10.7 mm (5.1–5.7 mm, abdomen excluded), body overall scarcely setose, almost glabrous. — Colouration: Head and thorax metallic greenish blue, elytra mostly metallic purple to greenish purple apically, abdomen shiny black to piceous-black; antennae, palpi and legs piceous to piceous-black. — Head: about as long as wide (HW / HL = 1.0), slightly narrower than pronotum at widest point (HW / PW = 0.9); epicranium with medial interocular punctures separated by distance 3 × as large as distance separating medial punctures from lateral punctures. Eyes distinctly shorter than temples (EL / TL = 0.6) seen from above. Antennae with first antennomere distinctly shorter than second and third combined, third 1.1 × slightly longer than second, fourth-seventh longer than wide, eighth-tenth about as long as wide. Labial palpus with third palpomere 1.5 × as long as second. Maxillary palpus with fourth palpomere (apical) 1.8 × as long as third. Neck about 0.4 × as wide as head at widest point. — Pronotum: moderately longer than wide (PW / PL = 0.8), dorsal rows of punctures each with 4 punctures. — Legs: Mesotarsi shorter than mesotibiae, metatarsi shorter than metatibiae, first metatarsomere shorter than fifth (S 1 / S 5 = 0.8). — Elytra: at sides moderately longer than pronotum at midline (EtL / PL = 1.2). — Male sexual characters: Sternum 8 moderately emarginate medio-apically (Fig. 5 K View Figure 5 ). Aedeagus with median lobe gradually narrowed from base into a subacute apex, internal sac with one pair of elongate and sclerotized structures (Fig. 6 G View Figure 6 ). — Female sexual characters: As described for the genus, with tergum 10 arcuate apically, accessory sclerite horseshoe-shaped.

Geographical distribution.

Yuracarus napoensis sp. nov. is currently recorded only from the locality of Napo in the Andes of Ecuador, at approximately 2370 and 3100 m of altitude (Fig. 7 View Figure 7 ).

Etymology.

The specific name napoensis is a Latinized adjective referring to the locality of Napo, where this species was collected.

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Yuracarus