Konradus trescrucensis, 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

Konradus trescrucensis sp. nov.

Figures 2 C , 5 E , 6 C , 7 , 8

Type material.

Holotype ♂, with labels: [white printed label] “ PERU: CU, Tres Cruces / Abra Acjanaco, Bosque / Maderero , 3600 m / ca. 13°18’S / 71°40’W / 12.vii.1991 D. Silva ”, “ Muestreo / por Golpeo ”, [red label] “ Holotype Konradus / trescrucensis Chani-Posse / et al. 2025 ” ( MUSM) . One paratype with same data, ♂ (Fig. 2 C ), with additional red label: “ Paratype Konradus / trescrucensis Chani-Posse / et al. 2025 ” ( MUSM).

Diagnosis.

Konradus trescrucensis can be identified among other species of Konradus by the following combination of characters: antennomeres 7–8 transverse, the distance separating the medial interocular punctures on the frons 2.0 × distance separating the medial punctures from the lateral punctures, the head not distinctly wider than pronotum at its widest point, and the pronotum parallel-sided.

Description.

Body length 8.5–8.8 mm (4.9–5.1 mm, abdomen excluded), body overall scarcely setose, almost glabrous. — Colouration: head, thorax, elytra, and abdominal segments 6 and 7 metallic purple to purplish-green; scutellum and rest of abdomen metallic green. — Head: slightly longer than wide (HW / HL = 0.9), as wide as to slightly wider than pronotum at widest point (HW / PW = 1.0–1.1); epicranium with medial interocular punctures separated by distance 2.0 × 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 moderately to slightly shorter than second and third combined, third about 1.2–1.4 × as long as second, fourth and fifth longer than wide, sixth about as long as wide, seventh-tenth transverse. Labial palpus with third palpomere 1.5 × as long as second. Maxillary palpus with fourth palpomere (apical) 2.0 × as long as third. Neck about 0.4 × as wide as head at widest point. — Pronotum: distinctly to moderately longer than wide (PW / PL = 0.7–0.8), dorsal rows of punctures each with 5 punctures. Prosternum without distinct mid-longitudinal carina. — Legs: Mesotarsi slightly shorter than mesotibiae, metatarsi slightly shorter than metatibiae, first metatarsomere shorter than fifth (S 1 / S 5 = 0.8). — Elytra: at sides as long as to slightly longer than pronotum at midline (EtL / PL = 1.0–1.1). — Male sexual characters: Sternum 8 slightly emarginate medio-apically, emargination without semi-membranous extension. Aedeagus with median lobe gradually narrowed from base into a subacute apex, internal sac with one pair of elongate and sclerotized structures (Fig. 6 C ). — Female sexual characters: Unknown.

Geographical distribution.

Konradus trescrucensis sp. nov. is currently recorded only from the locality of Tres Cruces (Cosñipata district, Paucartambo province) from Cuzco department, in the Tropical Andes of Peru, at 3600 m of altitude (Fig. 7 ).

Etymology.

The specific name trescrucensis is a Latinized adjective referring to the locality of Tres Cruces, where this species was collected.

Figures

Figure 2. A Konradus leehermani Chani-Posse & Ramírez-Salamanca [NHMUK ©]; B Konradus cuscensis sp. nov. (HT, male) [FMNH ©]; C Konradus trescrucensis sp. nov. (PT, male) [MUSM ©]; D Yuracarus cosnipatensis sp. nov. (PT, female) [MUSM ©]; E Yuracarus napoensis sp. nov. (PT, female) [CNC ©]; F Yuracarus yunguensis sp. nov. (PT, female) [FMNH ©]. Scale bar: 5 mm.

Figure 5. Konradus actinus (Bernhauer): A male sternum 8; B sternum 9; C female tergum 8; D female tergum 10. Konradus trescrucensis sp. nov.: E sternum 9. Konradus cuscensis sp. nov: F male tergum 8; G sternum 9; H male tergum 10; I gonocoxites of female genital segment; J accessory sclerite. Yuracarus napoensis sp. nov.: K male sternum 8; L sternum 9. Yuracarus yunguensis sp. nov.: M sternum 9; N male tergum 10; O gonocoxites of female genital segment; P female tergum 10. Yuracarus cosnipatensis: Q female tergum 8. Yuracarus diamantinus (Bernhauer): R female tergum 10; S gonocoxites of female genital segment; T accessory sclerite. Scale bars: 0.5 mm (A – I, K – S); 0.2 mm (J, T).

Figure 6. Aedeagus, dorsal and lateral views: A Konradus actinus (Bernhauer), B Konradus cuscensis sp. nov., C Konradus trescrucensis sp. nov., D Yuracarus diamantinus (Bernhauer), E Yuracarus yunguensis sp. nov., F Yuracarus cosnipatensis sp. nov., G Yuracarus napoensis sp. nov. Scale bars: 0.5 mm.

Figure 7. Distribution map for the species of Konradus Chani-Posse & Ramírez-Salamanca and Yuracarus gen. nov.

Figure 8. Phylogenetic reconstructions indicating relationships of Konradus Chani-Posse & Ramírez-Salamanca and Yuracarus gen. nov. within the Andean clade: A most parsimonious tree with black circles as exclusive (non-homoplastic) synapomorphies and white circles as non-exclusive (homoplastic) synapomorphies. Numbers in bold below the branches are absolute Bremer support values; B maximum Likelihood tree with support values SH-aLRT / UFB; C fifty percent majority consensus tree with posterior probabilities.