Konradus Chani-Posse & Ramírez-Salamanca, 2020

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

Genus Konradus Chani-Posse & Ramírez-Salamanca, 2020

Figures 1 A, B , 2 A – C , 3 E , 4 A , 5 A – J , 6 A – C , 7 , 8

Konradus Chani-Posse and Ramírez-Salamanca 2020: 239; Rodríguez-Melgarejo and Chani-Posse 2021: 16 (NT lineage); Chani-Posse et al. 2022: 65, 66, 70 (phylogeny); Ramírez-Salamanca et al. 2024: 5 (list); Chani-Posse et al. 2024: 118, 122 (phylogeny); Chani-Posse and Rodríguez-Melgarejo 2024: 396, 404, 405, 413 (phylogeny).

Species composition.

Four species: Konradus actinus (Bernhauer) comb. nov. ( Bolivia); Konradus cuscensis sp. nov. ( Peru); Konradus leehermani Chani-Posse & Ramírez-Salamanca ( Ecuador); Konradus trescrucensis sp. nov. ( Peru).

Type species.

Konradus leehermani Chani-Posse & Ramírez-Salamanca, 2020 .

Diagnosis and description.

As in Chani-Posse and Ramírez-Salamanca (2020 a).

Recognition.

Konradus can be easily recognized among other Neotropical genera of Philonthina by its distinct and entirely metallic-colored habitus, characterized by an elongate head and pronotum, with posterior angles of the head almost obsolete, gular sutures joined posteriorly before the neck, eyes distinctly shorter than the tempora, and protarsomeres 1–4 subequal in length, slightly to moderately widened apically, bearing both discal and marginal striate setae on the ventral surface, with the discal setae sparse and not forming a patch. Furthermore, Konradus can be distinguished from Yuracarus gen. nov. by several key features. The head of Konradus has posterior angles that are almost obsolete, while those of Yuracarus are distinctly obtuse. The profemur in Konradus is subcylindrical and not angulate medially, whereas in Yuracarus it is distinctly angulate in both sexes. Additionally, the protarsomeres 1–4 of Konradus have discal setae that are scattered and do not form a patch, in contrast to those of Yuracarus , where the discal setae form a patch on the ventral surface.

Distribution.

Konradus is currently known from the Tropical Andes of Ecuador, with new records from Peru and Bolivia (Fig. 7 ), at altitudes ranging from 2100 to 3600 meters.

Figures

Figure 1. Type material. A, B Philonthus actinus Bernhauer and labels (HT, male) [FMNH ©]; C, D Philonthus diamantinus Bernhauer and labels (HT, male) [FMNH ©]. Scale bar: 4 mm.

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 3. Philonthus diamantinus Bernhauer [CNC ©]: A head in ventral view and prosternum; B mesosternum; C male protarsomeres 1–3 in dorsal view; D male proleg; F male protarsi in ventral view. Konradus leehermani Chani-Posse & Ramírez-Salamanca: E female protarsomeres 1–3 in ventral view. Inesius callosipennis (Bernhauer): G male protarsi in ventral view; I male mesotarsomeres 1–3 in dorsolateral view. Delgadobius amazonensis Chani-Posse & Couturier: H male protarsi in ventral view; J male mesotarsomeres 1–3 in dorsolateral view. Philonthus splendens (Fabricius): K male protarsi in ventral view. Abbreviations: pmr = postmandibular ridge, gs = gular sutures, ir = intercoxal ridge, t 2 = mesotarsomere 2.

Figure 4. Pronotum: Konradus leehermani Chani-Posse & Ramírez-Salamanca (A), Inesius callosipennis (Bernhauer) (B), Yuracarus diamantinus (Bernhauer) (C). Scale bar: 1.0 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.