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Research Article
On the spider genus Arboricaria with the description of a new species (Araneae, Gnaphosidae)
expand article infoKiril Glebovich Mikhailov
‡ MGU Musum of Zoology, Moscow,
Open Access

Abstract

The spider genus Arboricaria Bosmans, 2000 is redefined and an updated diagnosis given. The differences between Arboricaria and Micaria Westring, 1851 are discussed in detail. A key to all five species of the genus is provided. One new species, Arboricaria zonsteini sp. n. (♂♀), is described based on specimens from Kyrgyzstan and Azerbaijan. One new synonym is proposed: A. koeni Bosmans in Bosmans & Blick, 2000, syn. n. is assigned to A. sociabilis Kulczyński in Chyzer & Kulczyński, 1897. Data on the distribution of Arboricaria in Russia and adjacent countries are presented with references to the papers on local spider faunas.

Keywords

Spiders, Gnaphosidae, new species, taxonomy, Caucasus, Middle Asia

Introduction

Arboricaria was established by Bosmans and Blick (2000) to accommodate the Micaria subopaca species group as outlined by Wunderlich (1980: 249). Five species were included, three of which had been known earlier, A. cyrnea (Brignoli, 1983) (the type species), A. subopaca (Westring, 1861) and A. sociabilis Kulczyński in Chyzer & Kulczyński, 1897, and two further described as new: A. koeni Bosmans in Bosmans & Blick, 2000 and A. brignolii Bosmans & Blick, 2000.

Platnick (2014, latest version), in his World Spider Catalog, does not accept this genus, because the authors provided “no evidence whatever that these taxa constitute the sister group of all other Micaria, or that the remaining Micaria do not constitute a paraphyletic group from which a relatively autapomorphic subgroup has been artificially extracted, those changes are not followed here”. The same concerns the current World Spider Catalogue (WSC 2015). Arboricaria is absent from the latest world gnaphosid revision as well (Murphy 2007), albeit it has never been synonymized with Micaria.

When preparing a review of the Micaria fauna of the former Soviet Union (Mikhailov 1987), I came across a specimen from Kyrgyzstan, Central Asia which showed a bifid male tibial apophysis and apparently represented a new species. Because its generic assignment seemed obscure at that time, this specimen was excluded from my 1987 paper. However, additional material has since become available from Azerbaijan, Caucasus.

The present contribution not only provides a description of that new species, but it also aims at clarifying the distinctions between two similar genera, Micaria Westring, 1851 and Arboricaria Bosmans, 2000, so as to provide a brief review of and a key to the known species of the latter genus. In addition to Mikhailov’s (1987) faunistic review, data on the distribution of Arboricaria species in Russia and adjacent countries are provided. Since most of the species included in Arboricaria are well-known and properly described, e.g. by Wunderlich (1980) within Micaria and/or by Bosmans and Blick (2000) in Arboricaria, this paper requires no redescriptions to be made and can be reduced to a key, with only short remarks given for most of species.

Material and methods

Material of three species was examined in detail: A. subopaca, A. sociabilis and A. zonsteini sp. n. Specimens were examined using MBS-9 and Olympus stereo microscopes. All initial pencil sketches drawn on scale paper were subsequently inked and then digitized with Cintiq.

The following abbreviations are used below: ap – apically, Cb – cymbium, d – dorsally, F – femur, Mt – metatarsus, pl – prolaterally, Pt – patella, T – tarsus, Ti – tibia, IRSNBInstitut Royal des Sciences Naturelles de Belgique, Bruxelles, ZMMUZoological Museum, Moscow State University, Russia. All measurements are given in mm.

Only basic and necessary synonymies are given in the species reviews below, as a more detailed list is available in WSC (2015).

Data on the distribution of Arboricaria species in Russia and Azerbaijan are mostly previously unpublished (my unpublished card Catalogue of the Spiders of Russia and Adjacent Territories; see also Mikhailov 2012, 2013). Only well-figured descriptions and redescriptions as well as main synonyms are listed here.

Taxonomy

Arboricaria Bosmans, 2000

Bosmans, in Bosmans and Blick 2000: 460–461.

Tuneva 2007: 250.

Type species

Micaria cyrnea Brignoli, 1983.

Composition

Arboricaria includes five known species listed above and one new species described below.

Despite not being followed on the world spider catalogues (see above), the original description of Arboricaria and its diagnosis both fully fit the provisions of the International Code of Zoological Nomenclature, especially Articles 13.1 and 67.4 (ICZN 1999), i.e., diagnostic characters are sufficient for recognizing the new genus, as well as the type species is properly indicated. So there are no formal grounds to reject the validity of Arboricaria.

According to the original diagnosis, the new genus “is very close to Micaria and differs by the more flattened, wider cephalothorax, the less spinate legs and the posteriorly truncate sternum. Males differ by the large tibial apophysis, bifid or curved, the bulging bulbus and the absence of the median apophysis (= Retinaculum in Wunderlich 1980), females by the large epigyneal fossa [= groove] with distinctly chitinized posterior margin”. In addition, the Micaria subopaca-group is characterized by 0-2 distal-ventral spines on the cymbium, as well as the absence of ventral spines on tibiae and metatarsi I–II (Wunderlich 1980: 249).

Not all of the characters are equally important.

The width of the carapace is variable within the remaining Micaria (cf. Table 1 herein with table 1 in Wunderlich 1980). In Micaria sensu stricto, the carapace length/width index is 1.2–2.0.

Carapace length/width index in Arboricaria species.

Species/Sex Index Source
Arboricaria zonsteini sp. n., ♂ 1.29–1.31 Present paper
Arboricaria zonsteini sp. n., ♀ 1.4 Present paper
A. brignolii Bosmans & Blick, 2000, ♂ 1.32–1.33 Bosmans and Blick 2000
A. brignolii Bosmans & Blick, 2000, ♀ 1.35, 1.46 Bosmans and Blick 2000
A. koeni Bosmans in Bosmans & Blick, 2000, ♂ 1.33–1.37 Bosmans and Blick 2000
A. koeni Bosmans in Bosmans & Blick, 2000, ♀ 1.42 Bosmans and Blick 2000
A. cyrnea (Brignoli, 1983), ♂ 1.35–1.36 Bosmans and Blick 2000
A. cyrnea (Brignoli, 1983), ♀ 1.47 Bosmans and Blick 2000
A. subopaca (Westring, 1861), ♂,♀ 1.25–1.35 Wunderlich 1980

The same concerns the size of the tibial apophysis (for large ones in Micaria, see figs 29a, 31a, in Wunderlich 1980), not bifid in Micaria, as well as in Arboricaria subopaca.

A median apophysis is absent or almost absent in Micaria rossica Thorell, 1875, wholly absent both in M. utahna Gertsch, 1933 and M. medica Platnick & Shadab, 1988.

An analysis of leg spination (see table 1 in Wunderlich 1980: 250–251) shows that Arboricaria species fall within the range of Micaria variability, yet close to its marginal part.

The shape of the posterior part of the sternum is clearly different in Micaria and Arboricaria (see Figs 1–5).

Figures 1–5.

Sternum in Micaria and Arboricaria. 1 M. formicaria, male 2 M. fulgens, female 3 A. subopaca, female 4 A. zonsteini sp. n., male 5 A. zonsteini sp. n., female.

Therefore, the above diagnosis of Arboricaria must be adjusted. This genus is indeed close to Micaria, but differs in the following characters that together allow recognizing the genus: a posteriorly truncate sternum in both sexes, a bulging bulbus and a missing median apophysis, a chiefly bifid tibial apophysis, a large epigynal groove with distinctly chitinized posterior margins in females. At least, the shape of bulbus and bifid apophysis can be regarded as apomorphic characters. All these characters constitute Arboricaria as a monophyletic and sister-group to other Micaria. An extended description of Arboricaria is available in Bosmans and Blick (2000).

The distribution pattern of Arboricaria is mostly Mediterranean and on the mountain regions of central Asia, although A. subopaca extends to most of the Palearctic.

Micaria Westring, 1851

Remarks

Type species. Micaria fulgens (Walckenaer, 1802), originally described as Aranea fulgens.

Diagnosis

Gnaphosids of the “Micaria-group” (Murphy 2007), differing from Arboricaria by the more or less ovoid, posteriorly not truncate sternum in both sexes, the ovoid, not bulging bulbus with a mostly present median apophysis, the palpal tibial apophysis, sometimes poorly expressed, not bifid in males, the epigynal groove in females, if present, without distinctly chitinized posterior margins.

Composition

101 species (WSC 2015).

Distribution

Holarctic. Other records require confirmation.

An analysis of the new Micaria species described from the Palaearctic since Bosmans and Blick (2000), all listed in WSC (2015), shows no match with Arboricaria characters. Therefore, despite the previous neglect of Arboricaria, no new species of this genus have been described within Micaria sensu lato since 2000. In addition, all extra-Holarctic records of Micaria are doubtful; these species most likely belonging to other genera or even families (Murphy 2007).

Key to Arboricaria species

1 Males 2
Females 6
2 Tibial apophysis not bifurcate (see fig. 35b in Wunderlich 1980); complex of other male diagnostic characters of Arboricaria present A. subopaca
Tibial apophysis bifurcate 3
3 Branches of tibial apophysis of equal or subequal length 4
Branches of tibial apophysis different in length 5
4 Embolus wide and large, rising over bulbus (Figs 17–20) A. sociabilis
Embolus thin, lying directly on apical surface of bulbus (Fig. 6) A. zonsteini sp. n.
5 Inner branch of tibial apophysis ca 3 times longer than outer branch; maximum width of embolus closer to 1/4 of bulbus width (see figs 24 & 25 in Bosmans and Blick 2000) A. cyrnea
Inner branch of tibial apophysis ca 2 times as long as outer branch; maximum width of embolus closer to 1/2 of bulbus width (see figs 28 & 29 in Bosmans and Blick 2000) A. brignolii
6 Lateral edges of epigynal groove divergent (see fig. 59 in Wunderlich 1980) A. subopaca
Lateral edges of epigynal groove parallel or convergent 7
7 Lateral edges of epigynal groove parallel (see fig. 30 in Bosmans and Blick 2000) A. brignolii
Lateral edges of epigynal groove convergent 8
8 Spermathecae shorter than epigynal groove; spermathecae not reaching the latter’s fore edge (Figs 10–11) A. zonsteini sp. n.
Spermathecae long, reaching fore edge of epigynal groove or even exceeding it 9
9 Hind edge of epigynal groove straight (see fig. 26 in Bosmans and Blick 2000) A. cyrnea
Hind edge of epigynal groove protruding backwards (see fig. 60a in Wunderlich 1980 and fig. 34 in Bosmans and Blick 2000; fig. 60b–c in Wunderlich 1980 refers to A. brignolii, see below) A. sociabilis

Description

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 measurements of male Arboricaria zonsteini sp. n.

Leg/Article F Pt Ti Mt T
I 0.79(0.75) 0.46(0.40) 0.69(0.58) 0.57(0.45) 0.50(0.40)
II 0.79(0.73) 0.41(0.40) 0.63(0.55) 0.56(0.45) 0.51(0.40)
III 0.64(0.60) 0.36(0.30) 0.49(0.40) 0.53(0.40) 0.37(0.30)
IV 0.81(0.78) 0.43(0.38) 0.79(0.65) 0.79(0.58) 0.43(0.40)
Total 3.03(2.86) 1.66(1.48) 2.60(2.18) 2.45(1.88) 1.81(1.50)

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.

Figures 6–9.

Arboricaria zonsteini sp. n., right male palp. 6 ventral view 7 retrolateral view 8 prolateral view 9 tibial apophysis, schematically.

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 measurements of female Arboricaria zonsteini sp. n.

Leg/Article F Pt Ti Mt T
I 0.63, 0.70 0.35, 0.38 0.48, 0.55 0.40, 0.45 0.38, 0.43
II 0.60, 0.68 0.30, 0.38 0.48, 0.55 0.40, 0.45 0.38, 0.38
III 0.53, 0.58 0.30, 0.28 0.38, 0.43 0.38, 0.43 0.30, 0.40
IV 0.75, 0.75 0.33, 0.35 0.65, 0.68 0.60, 0.68 0.38, 0.40
Total 2.51, 2.71 1.28, 1.39 1.99, 2.21 1.78, 2.01 1.44, 1.61

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.

Figures 10–11.

Arboricaria zonsteini sp. n., female copulatory organs. 10 epigyne 11 vulva.

Distribution

Northern Kyrgyzstan and Apsheron Peninsula (Azerbaijan).

Arboricaria cyrnea (Brignoli, 1983)

Micaria canestrinii: Wunderlich 1980: 292–293, figs 37a–d (♂).

Micaria cyrnea Brignoli, 1983: 564 (nomen novum).

Arboricaria cyrnea: Bosman and Blick 2000: 461–463, figs 24–31 (♂♀).

Note. This is the type species of the genus.

Distribution

(after Bosmans and Blick 2000). Greece: north Aegean Islands; Italy (continental); France: Corsica. The records from Russia are erroneous (see below under A. sociabilis).

Remark

The new name was proposed by Brignoli (1983) for Micaria canestrinii Roewer, 1951 as misidentified by Wunderlich (1980).

Arboricaria subopaca (Westring, 1861)

Fig. 3

Micaria subopaca Westring, 1861: 336.

= Micaria albostriata L. Koch, 1877.

= Micaria humilis Kulczyński, 1885.

Micaria subopaca: Wunderlich 1980: 290–291, figs 35a–e, 59 (♂♀).

Material

1 ♂, 1 ♀ (ZMMU Ta-2119), Russia, Moscow Area, environs of Bolshevo, 55°56'N, 37°51'E, under pine bark, 28.02.1926 (leg. et det. V.I. Pereleshina); 1 ♀ (ZMMU), Belarus, Minsk Area, Myadel Distr., Lake Naroch, ca 54°49-53'N, 26°40-50'E, song thrush nest, 11.07.1967 (leg. A.S. Gembitsky, det. E.M. Zhukovets); 1 ♀ (ZMMU), Belarus, Minsk Area, Soligorsk Distr., Velichkovichi, ca 52°37'N, 27°14-15'E, 12.05.1982 (leg. Yu.M. Zhukovets, det. K.G. Mikhailov).

Distribution

All Europe north to Norway. Russia east to Urals, with scattered records in Transbaikalia and Kamchatka.

Russia and adjacent countries

(all as Micaria, exceptions are marked).

Russia. Karelia (Palmgren 1943). Leningrad Area (Charitonov 1928, as M. albostriata; Oliger 2010). Moscow Area (Pereleshina 1928, as M. albostriata; Mikhailov 1987). Ryazan Area (Mikhailov 1987). Kaluga Area (Esyunin et al. 1993). Lipetsk Area (Panteleeva 1982, as M. albostriata). Voronezh Area (Panteleeva 2007). Belgorod Area (Kulczyński 1913, as M. albostriata; Ponomarev and Polchaninova 2006, as Arboricaria). Ulyanovsk Area (Kuzmin and Alekseenko 2011). Samara Area (Krasnobaev and Ovtsharenko 1986; Krasnobaev and Matveev 1993; Krasnobaev 2004, 2007). Volgograd Area (Ponomarev and Khnykin 2013, as Arboricaria). Rostov Area (Ponomarev et al. 2006; Ponomarev and Lebedeva 2014, both as Arboricaria). Komi Republic: Pechoro-Ilychskiy Nature Reserve (Kazantsev 2013, as Arboricaria). Sverdlovsk Area (Tuneva 2007, as Arboricaria). Perm Area (Esyunin and Efimik 1995; Tuneva 2007, as Arboricaria). Chelyabinsk Area (Esyunin and Efimik 1996; Tuneva 2007, as Arboricaria). SE part of West Siberia (Romanenko 2007). Altai Province (Azarkina and Trilikauskas 2013). Krasnoyarsk Province: Stolby Nature Reserve (Tuneva 2007, as Arboricaria). Buryatia (Danilov 1993, 2008). Kamchatka (Kulczyński 1885, as M. humilis; 1926, as M. albostriata).

Estonia (Vilbaste 1987).

Lithuania (Pupiska 1939, as M. albostriata; Vilkas 1992; Biteniekytė and Rėlys 2011).

Latvia (Šternbergs 1981, as M. albostriata).

Belarus: Minsk Area (Gembitsky et al. 1985).

Ukraine. Chernovtsy Area (Fedoriak and Rudenko 2007). Chernigov Area (Evtushenko 1992). Lugansk Area (Polchaninova and Prokopenko 2013). Donetsk Area (Polchaninova and Prokopenko 2008). Kherson Area (Talanov and Nazarenko 1989) [doubtful data; confirmation needed (Polchaninova and Prokopenko 2013)].

Moldova (Roşca 1941, as M. albostriata).

Arboricaria sociabilis Kulczyński, 1897

Figs 12–16, 17–20

Micaria sociabilis Kulczyński in Chyzer & Kulczyński, 1897: 254 & 255 (key), 258–259, Tab.X., figs 21 (♀) 25a–b (♂).

M. canestrinii Roewer, 1951: 447 (replacement name for M. aurata Canestrini, 1868, praeocc.).

M. sociabilis: Wunderlich 1980: 291–292, figs 36a–b (♂, doubtful, see note in the text below, incorrect drawings), 60a (♀).

Arboricaria koeni Bosmans in Bosmans & Blick, 2000: 465, figs 32–35 (♂♀), syn. n.

Micaria sociabilis: Pfliegler 2014: 145 (record), figs 3e, 4c (♂♀).

Micaria sociabilis: Sentenská et al. 2015: figs 4, 6 (♂♀).

NotM. sociabilis: Wunderlich 1980: figs 60b–c (♀, = A. brignolii, see below).

Material

1 ♂ (IRSNB, holotype of A. koeni), Greece, Kreta, Chania, [in bark], 22.V.1994 (leg. Koen van Keer); 1 ♂ (IRSNB, paratype of A. koeni, left palp missing), Kreta, Chania, 22-5-1994; 1 ♂ (ZMMU; left palp and leg I only), Russia, Rostov-on-Don, 47°13'33"N, 39°41'59"E, window of living flat, 8.06.1978 (leg. et det. A.V. Ponomarev).

Taxonomic remarks

Originally, the male was matched with the female with some doubts (Chyzer and Kulczyński 1897), because they were taken from different, but not extremely distant localities of the former Austro-Hungarian Empire. Syntypes (1 ♂, 1 ♀, “Ungarn” = “Hungary”) are listed by Wunderlich (1980), but he only redescribed the female. Comparing the epigynes of A. sociabilis and A. koeni shows no essential difference between them; therefore, these names are to be synonymized. The position of the copulatory openings is a little variable; in the type of A. sociabilis, they are closer to the middle part of the epigynal groove, in the A. koeni type and the A. sociabilis material as depicted by Pfliegler (2014) closer to the posterior one-third.

A male syntype of Micaria sociabilis from Mukachevo is currently kept in the Zoological Museum in Warsaw, Poland, but both palps are missing (W. Wawer, pers. comm.). The tibial apophysis as redrawn by Wunderlich (1980: Fig. 36a, see also Fig. 14) from the original description (Chyzer and Kulczyński 1897: tab. X, fig. 25b, see also Fig. 12) is certainly incorrect. No deep bifurcation is visible in the original figure. Miller (1971) in his key to Czechoslovak spiders, pointed out: “Tibial apophysis apically [sic! – KM] forked with 2 teeth, lower tooth narrower and more pointed; it is laterally slightly bent, ventrally rounded outside and bent forward and it has the same width” (translated from Czech by A. Šestaková). Miller’s specimen of M. sociabilis was never depicted and is currently missing among the other Micaria samples kept in the National Museum in Prague, Czech Republic (Kůrka 1994).

Figures 12–16.

Arboricaria sociabilis, male palp, from different sources. 12, 13 original drawings by Chyzer and Kulczynski (1897)14 “improved” drawing by Wunderlich (1980)15 original photo from Pfliegler (2014) paper 16 same photo with traced embolus. No scale. 12, 13, no copyright, 14, with permission of Joerg Wunderlich, 15, courtesy of W. Pfliegler (Debrecen, Hungary).

Figures 17–20.

Arboricaria sociabilis, male palp from ZMMU collection. 17 ventral view 18 retrolateral view 19, 20 tibial apophysis, different projections.

Figure 21.

Localities of Arboricaria subopaca in Russia and other post-Soviet republics. Main physiographical areas accepted in Mikhailov (1997, 2013) are indicated: A Fennoscandia B Russian Plain C Carpathians D Urals E West Siberia F mountains of South Siberia G Kamchatka.

The picture of the M. sociabilis male palp as presented by Pfliegler (2014) certainly indicates the identity of this species with Arboricaria koeni (male types examined, see above in Material) and additionally confirms the synonymy of these names. To be exact, not enough details are visible in the publication, but a correct shape of the embolus is shown in the original photograph kindly sent to me by the author (cf. Figs 15 and 16 with traced embolus).

Characteristically, a male specimen from Rostov-on-Don was initially identified by A.V. Ponomarev as Micaria sociabilis, only later re-labeled as Arboricaria koeni.

Distribution

Ukraine: Transcarpathia: Mukachevo (= Munkácz in Chyzer & Kulczyński [1897]). NE-Hungary (two other localities from the original description; Debrecen [Pfliegler 2014]); Spain, continental France, together with Corsica, Italy, Croatia, Macedonia, continental Greece, together with Crete, Bulgaria, Romania, Czech Republic, Slovakia (Helsdingen 2014, for M. sociabilis and M. koeni). Russia: Rostov Area (Ponomarev and Tsvetkov 2006a, as A. cyrnea; Ponomarev 2008; Ponomarev and Dvadnenko 2013), Krasnodar Province: Kushchevskaya (Ponomarev and Tsvetkov 2006b, as A. brignolii; Ponomarev 2008). Azerbaijan (Caucasus Major: Huseynov, Alieva, 2010, as A. koeni, Apsheron Peninsula: Huseynov 2002, as A. koeni), all for M. (or Arboricaria) koeni. The records of A. cyrnea from the Rostov Area, as well as those of A. brignolii from the Rostov Area and Krasnodar Province belong to A. sociabilis (A.V. Ponomarev, pers. comm., as A. koeni).

Biology

See Sentenská and Pekár (2013), Sentenská et al. (2015).

Arboricaria brignolii Bosmans & Blick, 2000

Micaria ? sociabilis: Wunderlich, 1980: Fig. 60b, c.

Arboricaria brignolii Bosmans & Blick, 2000: 463–465, figs 28–31 (♂♀).

Distribution

(after Bosmans and Blick 2000). Portugal, France: Dept. Var: Le Lavandon (new). Records from Russia are erroneous (see above, under A. sociabilis).

Remark

As it was already pointed out by Bosmans and Blick (2000), with some doubts, the record of M. sociabilis from France by Wunderlich (1980: 291) is referred to Arboricaria brignolii. I support this reference.

Acknowledgements

I am deeply obliged to L. Baert (IRSNB) for the loan of Arboricaria koeni types, W. Pfliegler (Debrecen, Hungary) for providing the original photographs of his Micaria sociabilis, A. Šestaková (Trnava, Slovakia) for the translation from Czech into English, W. Wawer (Warszawa, Poland) for the information about the male syntype of Micaria sociabilis, Theo Blick (Hummeltal & Frankfurt am Main, Germany), Yuri M. Marusik (Magadan, Russia) and Mykola M. Kovblyuk (Simferopol, Crimea) for kind reviews of an advanced draft; Dmitry V. Logunov (Manchester, UK) for encouragement, and Sergei I. Golovatch (Moscow, Russia) for checking the English. Proceeding of this paper is supported by Russian Science Foundation project No. 14-50-00029. Drawings and measurements are made in 2015 under supervision of Moscow State University Project No. 01200117416 (Contract No. 18-1-01).

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