Arboricaria zonsteini, Mikhailov, Kirill G., 2016

Mikhailov, Kirill G., 2016, On the spider genus Arboricaria with the description of a new species (Araneae, Gnaphosidae), ZooKeys 558, pp. 153-169 : 158-159

Taxon classification Animalia Araneae Gnaphosidae

Arboricaria zonsteini sp. n. Figs 5, 6-9, 10-11

Material.

Holotype ♂ ( ZMMU Ta-7739), Kyrghyzstan, env. of Frunze (now Bishkek ), ca 42°52-54'N, 74°33-40'E, 30.03.1983 (S.L. Zonstein & S.V. Ovtchinnikov). Paratypes, Azerbaijan, Apsheron Peninsula: 1 ♂ ( ZMMU Ta-7740 ), Baku City, environs of Lake Ganly-Gyol , ca 40°22'N, 49°48'E, shrub branch, 21.05.1996 (E. Huseynov) ; 1 ♀ ( ZMMU Ta-7741 ), Baku City, Botanical Garden , 40°21'20"N, 49°49'46"E, pine trunk, 13.06.1996 (E. Huseynov) ; 1 ♀ ( ZMMU Ta-7742 ), Mardakyany , 40°29'32"N, 50°08'20"E, stone wall, 1.06.1996 (E. Huseynov) .

Name.

Honours Sergei L. Zonstein, arachnologist, now living in Israel, earlier in Kirghizia (= Kyrgyzstan).

Diagnosis.

The new species differs by a combination of the following characters: Males: equally long branches of tibial apophysis with thin embolus lying on apical surface of bulbus; Females: convergent edges of epigynal groove with moderately long spermathecae, the latter being shorter than the groove, the former not reaching the fore edge of the latter.

Description.

Male (holotype; measurements of paratype in brackets). Carapace length 1.20(1.05), width 0.93(0.80), ratio 1.29(1.31). Carapace and leg femora reddish brown, in holotype carapace darker, other podomeres, especially metatarsi and tarsi, straw-coloured.

For leg measurements, see Table 2.

Leg spination: F I d 1, pl 1, F II–IV d 1, Ti III–IV pl 1(ap), Mt III v 2 (1.2, 2.2), Mt IV v 1.1.1.2 (1.1.2).

Abdomen length 1.63(1.60), width 0.93(0.93), ratio 1.76(1.72), dark brown, with transverse band of white bristles, broken in the middle.

Palpus as in Figs 6-9. Length of palpomeres (holotype): F 0.37, Pt 0.21, Ti 0.16, Cb 0.50. Cymbium longer than femur, rounded in apical part, with 2 ventral-distal spines. Tibial apophysis long, reaching ca ½ of tibia length, wide, with parallel margins, bifid, with acute apices. Cymbium apical part shorter than tibial apophysis. Tegulum oval in plane, without conical apophyses. Embolus poorly chitinized, lying directly on apical surface of tegulum. Subtegulum not visible.

Female. Carapace length 1.05, 1.05, width 0.75, 0.75, ratio 1.4, 1.4. Body coloration as in male, but carapace being pale reddish brown. For leg measurements, see Table 3 (in all female measurements, the first one is for the paratype from Mardakyan, the second for that from the Botanical Garden).

Leg spination: F I d 1, pl 1, F II–IV d 1, Ti III–IV pl 1(ap), Mt III–IV v 1.2.

Abdomen length 1.55, 1.88, width 0.78, 1.00, ratio 1.88, 1.99.

Epigyne and vulva as in Figs 10-11. Epigynal groove subpyriform, as long as wide, with slightly convex edges; distance between its posterior edge and epigastric furrow being ¼ of groove length. Copulatory openings small (like in most Arboricaria and Micaria ), lying at lateral edges of groove in its posterior one-third. Copulatory tubes thin, almost vertical and parallel to each other, about half the length of spermathecae. Spermathecae oblong-oval, parallel to each other, being 2/3-3/4 as long as epigynal groove.

Distribution.

Northern Kyrgyzstan and Apsheron Peninsula (Azerbaijan).