Liropilio stukanovi Gritsenko, 1979

Trilikauskas, Laimonas A. & Azarkina, Galina N., 2021, The harvestmen fauna (Arachnida: Opiliones) of the Katunsky Biosphere Reserve and adjacent territories (South Siberia, Russia), with a description of a new species of Sabacon (Sabaconidae) and notes on Sabacon sergeidedicatum Martens, 1989, Zootaxa 4990 (1), pp. 117-133 : 119-121

Liropilio stukanovi Gritsenko, 1979

Figures 2–15

Gritsenko, 1979: 266, figs 7–13

Material examined. RUSSIA: Altai Republic: Ust’-Koksa District : 1 ♂ ( ISEA O.001.0288), Katunsky Biosphere Reserve, NW shore of Taimenye Lake, [49°49’35.9”N, 85°48’25.5”E], 1745–1760 m a.s.l., scree, 8.VIII.2019; 4 ♂, 1 ♀ ( PCLT), Katunsky Biosphere Reserve , head of the Ozernaya River, shore of Taimenye Lake, near the ranger station, [49°48’40.9–42.9”N,85°47’57.2–57.6”E], 1509 m a.s.l. , 10.VIII.2019; 2 ♂ ( PCLT), upper reaches of the Katun’ River , mouth of Ozernaya River, [49°40’16.7”N, 85°41’49.6”E], 1268 m a.s.l. , 14.VIII.2019.

Comments. The species was described from the Ivanovsky Mountain Range in north-eastern Kazakhstan ( Gritsenko 1979) and has not been found since; this is the first record for the species from Russia. The genus Liropilio is morphologically similar to Zacheus C.L. Koch but differs by the presence of a tubercle with denticles on the basal segment of the pedipalps ( Figs 3–6 ) and an alate part on the penis, apically ( Figs 11–15 ). Palpal femur, trochanter, and tibia of this species slightly thickened latero-apically, densely covered with short, stout setae. Palpal femur bordered dorso-apically, with two rows of teeth ventro-retrolaterally, tarsus covered with setae ( Figs 3–4 , 7–10 ).

Habitat. Scree, edges of mixed forests ( Pinus silvestris , Abies sibirica , Betula pendula ), stony riverbanks overgrown by moss and grass. The habitat of the type locality is unknown ( Gritsenko 1979).

Distribution. Eastern Kazakhstan (Ivanovsky Mountain Range, West Altai) and Altai Republic, Russia (Katunsky Mountain Range).

Figures

FIGURES 1–4. General appearances of the female of Homolophus nordenskioeldi (C.L. Koch, 1879) (1) and the male of Liropilio stukanovi Gritsenko, 1979 (2–4): 1–2 Live specimens; 3–4 Ethanol-preserved specimens, 3 Dorsal view, 4 Lateral view. Scales: 1 mm (3–4).

FIGURES 5–10. Liropilio stukanovi Gritsenko, 1979, SEM micrographs: 5 Chelicera, prolateral view; 6 Same, retrolateral view; 7 Palp, prolateral view; 8 Same, retrolateral view; 9 Palpal femur, prolateral view; 10 Same, retrolateral view. Scales: 1mm.

FIGURES 11–15. Liropilio stukanovi Gritsenko, 1979, SEM micrographs (11–13): 11, 14 Penis, dorsal view; 12, 15 Same, lateral view; 13 Glans and apical part, dorsal view. Scales: 1mm (11–12, 14–15), 0.1 mm (13).