Cimmerosiro krivolutskyi Karaman & Mitov & Snegovaya 2024, gen. et sp. nov.
Creators: name: Karaman, Ivo M.
name: Mitov, Plamen G.
name: Snegovaya, Nataly
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Opiliones
Sironidae
Cimmerosiro
Cimmerosiro krivolutskyi

description: Cimmerosiro krivolutskyi gen. et sp. nov.
urn:lsid:zoobank.org:act: A1C347DD-AD99-4041-B6C2-9906C4EECF71
Figs 1A–C, 2D–E, 12A, 13–17
Diagnosis
Medium-sized species. Male tarsus IV short, swollen, adenostyle tubulose with dorsal crest. Digiti mobiles mediales of spermatopositor sharply tapering toward fimbriate tip. Apical lobes of ovipositor elongated, 2.5 times as long as terminal article. Terminal setae long, as long as apical lobes. Claws III prolaterally with a comb-like row of spines.
Etymology
This species is dedicated to the acarologist Dmitry A. Krivolutsky, who previously indicated the existence of this fauna in the Satapalia and Borjomi Nature Reserves in western Georgia.
Material examined
Holotype
GEORGIA • ♂; Satapalia Nature Reserve near Kutaisi, Kutaisi; 42°18ʹ41.2ʺ N, 42°40ʹ32.2ʺ E; 411 m a.s.l.; 27 Aug. 2019; P. Hlaváč and P. Baňař leg.; CIK 1541/1.
Paratypes
GEORGIA • 2 ♀♀; same collection data as for holotype; CIK 1541/2 • 1 ♀; Satapalia Nature Reserve near Kutaisi, Kutaisi; 42°18ʹ43.9ʺ N, 42°40ʹ23.1ʺ E; 453 m a.s.l.; 27 Aug. 2019; P. Hlaváč and P. Baňař leg.; CIK 1542 • 1 ♂, 1 ♀; same collection data as for preceding; CNS.
Description
Male BODY. If not otherwise stated, measurements for the male holotype. Body length 1.55 mm (males: 1.55– 1.60 mm). Body uniformly brown in color, widely oval; anterolateral margins long, sinuate, twice as long as ozophores; posterior margin of opisthosoma broadly conical (Fig. 13A). Ozophores narrow, longer than wide at their bases, laterally orientated (type 1). Integument densely granulated with predominantly oval first rank granules (Figs 14 A-C).
CHELICERAE. Slightly elongated (Fig. 16B), basal article 0.69 mm long; second article 0.64 mm long. Basal article on lateral side sparsely granulated with fine granules; dorsal transverse ridge rises sharply, ventral bulge laterally oriented. Second article smooth, 3.5 times as long as wide. Teeth on fiXed finger (8) and movable finger (7) tightly spaced.
PEDIPALPS. With chunky articles of normal proportions (Fig. 16A), 1.08 mm long without coxa and apotele; trochanter as long as patella; tarsus as long as tibia. Sensilla closer to terminal part of coxae.
VENTRAL PROSOMAL COMPLEX (Fig. 13B). Coxal lobes II more than twice as wide anteriorly as at poisterior end. Coxal lobes III more than twice as wide as long; slightly protruded medially at an obtuse angle. Coxal lobes IV slightly protruded medially at an obtuse angle, as long as wide at their narrowest part; posteriorly widened with conical processes situated laterally on frontal margin of gonostome.
LEGS. Basitarsi I–II chunky (I L/W ratio>2, II L/W ratio = 2.5); ornamentation covers one-half of length of basitarsus I (Fig. 15A–B); basitarsi III–IV fully ornamented; telotarsus I elongated (L/W ratio> 3); telotarsus II L/W ratio>2.5; telotarsus IV short, swollen (Fig. 15C); adenostyle elongated tubulose with dorsal crest (Fig. 16C). Claws II with a very small denticle; claws III with prolateral comb-like row of 3 elongated denticles and 2 small retrolateral denticles; claws IV with a small denticle on each side. Measurements of legs (without coxae and claws, in mm): I 1.75; II 1.46; III 1.23; IV 1.52.
SPERMATOPOSITOR (Fig. 17). Wide (less than two times as long as wide) with short terminal lobe. Setae terminales (4) short, lateral pair slightly shorter than medial pair; setae dorsales (4), lateral pair almost as long as medial pair. Three setae laterales on each side. Setae ventrales (3) located proximal to terminal lobe, medial one located lower. Digiti mobiles mediales wide, with fimbriate tip. Digiti mobiles laterales of irregular rod-shaped form, tapering toward tip. Median lobe slightly granulated.
Female Body length 1.59–1.65 mm. Dorsum widely oval (Fig. 13D); anterior margin protruded; anterolateral margins long, sinuate. Coxal lobes II of ventral prosomal complex (Fig. 13E) as in male; coxal lobes III twice as wide as long. Ovipositor terminal setae elongate, as long as apical lobes (Fig. 12A); terminal article wider than long. Receptacle orifices situated on terminal third of apical lobes; receptacles of saccate form, tapering towards bottom. Measurements of legs, without coxae and claws (in mm) (female of 1.60 mm body length): I 1.72; II 1.41; III 1.17; IV 1.47.
Remarks
We have analyzed specimens of two populations from relatively close sites which show differences in body dimensions and in the expression of the male adenostyle dorsal crest. These and other possible differences have to be investigated in a larger number of samples.
description: Published as part of Karaman, Ivo M., Mitov, Plamen G. & Snegovaya, Nataly, 2024, Parasironidae fam. nov., a Cimmerian lineage of Mediterranean Cyphophthalmi (Opiliones), with the description of three new genera and four new species, pp. 173-209 in European Journal of Taxonomy 921 (1) on pages 188-193, DOI: 10.5852/ejt.2024.921.2427, http://zenodo.org/record/10656519