identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
038187EBFFD6603AFF03FE9AD588FC72.text	038187EBFFD6603AFF03FE9AD588FC72.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratophysella dobrolyubovae Babenko & Antipova 2025	<div><p>Ceratophysella dobrolyubovae sp. nov.</p><p>Figs 1–12, 18–31</p><p>Type material. Holotype male, Russia, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=41.5476&amp;materialsCitation.latitude=43.2964" title="Search Plazi for locations around (long 41.5476/lat 43.2964)">Northwest Caucasus</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=41.5476&amp;materialsCitation.latitude=43.2964" title="Search Plazi for locations around (long 41.5476/lat 43.2964)">Karachay-Cherkess Republic</a>, Dombai, 400–500 m off Alibek Glacier, 43.2964°N, 41.5476°E, 2110 m alt., birch-willow shrubland (Figs 1–2), pitfall traps, 15– 25.07.2024, M. Antipova leg. Deposited in MSPU.</p><p>Paratypes 2 males &amp; 2 females, 15 juv. same area, ~370 ind. in ethanol.</p><p>Additional material. 3 females, 1 male and 2 juveniles, Russia, Northern Caucasus, Republic of North Ossetia – Alania, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=43.8609&amp;materialsCitation.latitude=42.7753" title="Search Plazi for locations around (long 43.8609/lat 42.7753)">Tsey</a> glacier foreland, pitfall traps at the glacier edge, 42.7753°N 43.8609°E, ~ 2320 m alt., 22– 28.07.2021. O. Makarova, M. Antipova &amp; A. Babenko leg. ; 2 females, same region, but rocky river floodplain in forest belt 42.7933°N, 43.9239°E, ~ 1700 m alt., O. Makarova leg.; 9 females, 6 males and 4 juveniles, hundreds of specimens preserved in ethanol, collected using pitfall traps, Kabardino-Balkarian Republic, Cherek Bezingiisky (Khulamsky) River valley, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=43.13156&amp;materialsCitation.latitude=43.10635" title="Search Plazi for locations around (long 43.13156/lat 43.10635)">Bezengi</a> glacier foreland, 43.10635°N, 043.13156°E, 2044–2165 m alt., various sites, but most abundant on the 14-year old deglaciated surface, the stony mound dominated with Vicia alpestris and Chamaenerion colchicum, 20– 30.07.2022. M. Antipova &amp; A. Babenko leg. ; 9 females, 4 males and 6 juveniles, same region, Irik River valley, ~ 3000 m alt., alpine meadow, 24.09.1999. A. Babenko leg. ; 9 specimens, same area, data and collector, but ~ 2900 m alt., dense moss and grass cover on rock; 4 specimens, same area and collector, but Adylsu River valley, ~ 2300 m alt., organic debris in willow hollow, 25.09.1999 ; 1 female, same area, Baksan River valley, below Ulybka Shkheldy Glacier, ~ 2350 m alt., N. Morozova leg. ; 9 females, 2 males and 1 juvenile, same area, Mount Elbrus, ~ 3000 m alt., sedge association, 07.06.2018. O. Makarova leg. ; 2 males, 1 female, 1 juvenile, same area, 3500 m alt., mosses on the rocks, 26.07.2023 M. Antipova leg. 1 female, 1 male and 3 juveniles, ~200 ind. in ethanol, same area, Adylsu River valley, Kashkatash glacier foreland, 43.211484°N, 42.686428°E, 2520 m alt., young willow-birch forest, 74 years after glacier retreat, pitfall traps and <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=42.686428&amp;materialsCitation.latitude=43.211483" title="Search Plazi for locations around (long 42.686428/lat 43.211483)">Tullgren</a> funnels, 16.07– 3.08.2023, M. Antipova &amp; A. Babenko leg.</p><p>DNA material. COI barcode sequences were obtained from four glacier forelands mentioned above: Bezengi (3 ind.), Kashkatash (3 ind.), Alibek (5 ind.) and Tsey (5 ind.). The sequences have been deposited in GenBank under accession numbers PX505022–PX505037.</p><p>Diagnosis. A relatively small-sized species of the denticulata - group, characterised by the fine and almost uniform cuticular granulation, the number of thickened sensilla on Ant. IV usual for the genus, a complete set of papillae on the labium, a virtually complete chaetotaxy with fine curved microsetae and short, straight and usually serrated macrosetae that taper only close to their tips. Apart from the distinctive chaetotaxy, its most striking feature is the presence of a complete set of papillae on the labium.</p><p>Description. Body length without antennae 0.9–1.1 mm, holotype — 1 mm. Habitus typical of the genus. General body colour in alcohol ranging from bluish to brownish (Fig. 3), with diffuse dorsal pigmentation and a paler ventral side. Granulation of integument rather fine and more or less uniform, sometimes a little coarser in the mid part of Abd. V, with 8–14, usually 10 granules between setae p1.</p><p>Antennal segments subequal in length to head. Ant. IV usually with a slightly divided apical bulb, seven blunt curved sensilla (five dorsal, S0, S1–S4 and two dorsolateral (external), S7 and S8), well differentiated from common setae; subapical organite (or) and microsensillum (ms) present as usual (Fig. 19); ventral sensory file with few short blunt setae, some of which slightly capitate (Fig. 20). Eversible sac between Ant. III and Ant. IV quite small and barely noticeable. Ant. III with a typical AO (Fig. 20), ms on outer side present. Ant. I–II with 7 and 13 smooth common setae, respectively, inner ones slightly longer as usual.</p><p>Head with 8+8 subequal eyes (Figs 4–5). PAO 2.5–2.8 times larger than adjacent ocellus, consisting of two long anterior and two smaller posterior lobes, an accessory boss present (Fig. 22). Labrum with 4/554 setae, its distal edge without distinct papillae as usual. Labial palp of the denticulata type with 6 proximal setae, all common papillae (A, B, D, E and C) and 14 guards, among them a1, b1, b2, d2, and e2 short, a1 rod-shaped, a lateral process (lp) small (Figs 6, 23). Basomedial field of labium (submentum) with four setae, basolateral one (mentum) with five setae, as usual. Head with 3+3 postlabial setae along ventral line. Maxillary head of the denticulata - type with three teeth on main part and six usual lamellae, L.1 extending beyond tip of maxillary teeth and slightly expanded at apex (Fig. 18). Outer maxillary lobe simple, with one sublobal hair.</p><p>Dorsal chaetotaxy typical of the denticulata - group, dorsal setae short and clearly differentiated into curved microsetae and short, straight and usually serrated macrosetae (Figs 8–9). The latter usually more or less rod-shaped, tapering only at the tips (Figs 10–12), sensorial setae about as long as macrosetae, on Abd. V usually longer (Fig. 12). Main peculiarities of tergal chaetotaxy: Th. II–III with most setae in a-row (excluding a3 on Th. II) as microsetae of similar length; m3 on Th. II present only occasionally and always absent from Th. III, as usual for the genus; macrosetae p2 slightly thinner and longer than p3; a lateral ms present on Th. II. Abdominal chaetotaxy (Fig. 9): Abd. I–III with a2’ and m3–m4 present; position of a1 setae relative to midline on Abd. IV rather variable; Abd. V without a2’, i.e. only 3 a-setae present between bases of macrosetae p1 and p5.</p><p>Chaetotaxy of legs 1–3 stable and typical of the genus: upper subcoxae—1, 3, 3 (among them, one macroseta on each subcoxa); lower subcoxae—0, 3, 3; coxae—3, 8, 8; trochanters—7, 7, 7; femora—14, 13, 12; tibiotarsi—19, 19, 18 setae, respectively. Tibiotarsal tenent setae (A1) acuminate, as a rule, rarely blunt or even slightly widened at apex, about as long as or slightly shorter than inner unguis edge (Fig. 29). Unguis with a small tooth in midsection of inner edge and a pair of lateral teeth basally (Figs 28–29). Unguiculus slightly shorter than half unguis inner edge, with a distinct basal lamella.</p><p>Ventral tube with 4+4 distal setae. Retinaculum with 4+4 teeth. Furca well-developed. Dens with six equally thick dorsal setae; outer basal macroseta about 0.7–0.9 × as long as dens (Figs 7, 24, 26), area without visible granulation on ventral surface of dens rather large (Fig. 25). Mucro of usual shape with a high, triangular, outer lamella, 1.6–2.1 × as long as dens.</p><p>Anal spines light and curved, borne by high papillae (Fig. 30), together with papilla clearly longer than inner unguis.</p><p>Epitoky. Epitokous changes in the morphology of the adult individuals of C. dobrolyubovae sp. nov. are clear, but not very pronounced. The modifications observed are quite consistent with those described for representatives of the genus (Cassagnau 1964b, Bourgeois 1971, 1974, 1981; Bourgeois &amp; Cassagnau 1973; Waltz &amp; Hart 1986; Zettel &amp; Zettel 1994; Skarżyński 2000): individuals in the reproductive stage show a clearly shortened furca (Fig. 27), the eversible sac between Ant. III–IV reduced, and the sensilla in the ventral sensory file are less noticeably modified (Fig. 21). In addition, the buccal cone in the reproductive stage is noticeably flattened while the long guards on the labial palp are clearly shortened and thickened.</p><p>Etymology. Named in honor of Tatiana Dobrolyubova, who first recorded this species (as C. succinea) from this region during her long-term studies (1975–1992) of the collembolan fauna in the Northwest Caucasus.</p><p>Affinities. The most noticeable feature of C. dobrolyubovae sp. nov. seems to be the partial reduction of dorsal setae on the dens. The structure of the furca is a very stable feature of the genus. However, of 146 species of the world fauna (Bellinger et al. 1996 –2025), more than 14% show some degree of its reduction. Five of such species have been described from North and Central America, i.e. C. densornata (Maynard, 1951); C. orizabae Yosii, 1962; C. scotti Yosii, 1962; C. sedecimocellata Yosii, 1962 and C. engeli Ellis, 1968 . Four species ( C. proserpinae (Yosii, 1956); C. kutyrevae (Babenko, 1994; in Babenko et al. 1994); C. zhangi (Zhao, 1998; in Tamura &amp; Zhao 1998); and C. taiguensis Jia, Skarżyński &amp; Li, 2010 are known from the Far Eastern regions of the Palaearctic. Ceratophysella czukczorum Martynova &amp; Bondarenko, 1978, a complex of closely related forms, inhabits the Beringian region on both sides of the Bering Strait. The identity of all these species, many of which are insufficiently well described, with C. dobrolyubovae sp. nov. is questionable simply because of the latter’s very distant occurrence. Among the species listed, C. dobrolyubovae sp. nov. seems to be particularly similar to C. zhangi (the description of which was based on a single and probably immature specimen (Jia et al. 2010)) and C. taiguensis . Of these two species, the former one is distinguished by the short unguiculus (~ 1/3 U3) and the unguis without teeth, while the latter, on the contrary, shows an elongated unguiculus (~ U3).</p><p>The fauna of Europe is the richest in species that have a reduced number of setae on the dens: four such species of the armata -group, i.e. C. quinquesetosa (Gisin, 1958); C. cylindrica Cassagnau, 1959, C. penicillifer Cassagnau, 1964 and C. sextensis Cassagnau, 1968, and at least seven species of the denticulata - group, C. succinea (Gisin, 1949); C. norensis Cassagnau, 1964 (1964a); C. varians (Stach, 1967); C. kapoviensis (Babenko, 1994; in Babenko et al. 1994); C. vargovychi Skarżyński, Kaprus’ &amp; Shrubovych, 2001; C. michalinae Skarżyński, 2005 and C. robustiseta Skarżyński &amp; Smolis, 2006 . There is also one “forgotten species”, C. sphagni (Becker, 1905) (Moscow Region, Russia), which also has six, not seven, setae on the dens and may well be a senior synonym of C. succinea . Within the denticulata - group, two species ( C. succinea and C. michalinae) can easily be distinguished from C. dobrolyubovae sp. nov. by the absence of papillae C from the labial palp. The same is also characteristic of C. kapoviensis [new data]. Unlike the new species, C. norensis (mountainous regions of southern France) is characterised by a noticeable reduction of dorsal chaetotaxy, in particular the presence of only 2+2 axial microsetae on Abd. IV. For both C. varians (Malta) and C. robustiseta (England, but from an artificial substrate in a botanical garden), the presence of only 6 setae on the dens is rather an exception than a rule, since in both cases the dens in the figures shows 7 setae. In addition, the former species has dorsal macrosetae smooth, on the last tergites being about as long as those tergites (vs clearly shorter and usually serrated in C. dobrolyubovae sp. nov.). Ceratophysella robustiseta is characterised by four primary lobes of the postantennal organ with more or less numerous fingershaped papillae, as well as both macro- and microsetae being thick, abruptly pointed at tips and clearly serrated, a long unguiculus and a very long basal seta on the dens (vs normal lobes in PAO, a clear difference in the shape of the macro- and microsetae, a shorter unguiculus and a shorter basal macroseta on the dens in C. dobrolyubovae sp. nov.).</p><p>Among the European species compared, C. vargovychi inhabits an area (the Crimean Peninsula) relatively close to the Caucasus, but it has been found only in caves. It differs from C. dobrolyubovae sp. nov. by the larger size (up to 2.1 mm), the relatively light colouration, the significantly longer dorsal setae and the unguiculus exceeding half the inner edge of the unguis. In addition, in C. dobrolyubovae sp. nov., most setae of the a-row on Th. II excluding a3 are microsetae subequal in length, whereas in C. vargovychi both setae a2 and a3 are differentiated as typical macrosetae.</p><p>Remarks. In one of the Caucasian regions (North Ossetia – Alania, the Tsey River Gorge), two superficially similar forms have been found, both differing only in the level of dorsal setae differentiation (cf. Figs 13–17 &amp; Figs 8–12). The short-setae form, described above as C. dobrolyubovae sp. nov., was found mainly in the alpine belt (lower only in the rocky floodplain near streams), whereas the second form, which had longer and thinner setae (see Figs 13–14) was recorded only in forest communities. Initially, we assumed these were two different forms of the same species and their differences were directly related to the harsher living conditions encountered by the high-mountain form. As similar polymorphism has previously been noted in the genus Ceratophysella, albeit in the armata -group (Skarżyński 2003), there was nothing extraordinary in such an assumption. However, molecular studies have revealed considerable genetic divergence between these forms (Fig. 31). The Kimura 2-parameter (K2P) pairwise distances for the COI gene range from 19% to 21% (Table 1), corresponding to interspecific variation levels typical of Ceratophysella (Skarżyński et al. 2021; Jia et al. 2024; Salimi et al. 2025). This strongly suggests they represent distinct species. Although typical representatives of a given form are easily distinguishable, there are also intermediate variants that are difficult to clearly assign to either form. Moreover, in the available old material from different regions of the Greater Caucasus and Transcaucasia, further several forms seem to be represented, the morphological differences of which are minimal. At present, we are forced to consider them as a complex of closely related forms of unclear status (C. sp. aff. dobrolyubovae) and can only state a highly diverse complex in the fauna of the Caucasus.</p><p>Distribution and ecology. The new species appears to be endemic to the Caucasus region, distributed at least from Teberda in the west to North Ossetia – Alania in the east (Fig. 1) and found primarily in alpine highlands (Fig. 2).</p></div>	https://treatment.plazi.org/id/038187EBFFD6603AFF03FE9AD588FC72	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Babenko, Anatoly;Antipova, Maria	Babenko, Anatoly, Antipova, Maria (2025): Two new species of the springtail genus Ceratophysella Börner, 1932 from the Caucasus (Collembola: Hypogastruridae). Zootaxa 5725 (3): 391-408, DOI: 10.11646/zootaxa.5725.3.4, URL: https://doi.org/10.11646/zootaxa.5725.3.4
038187EBFFDE603EFF03FAA4D798FC37.text	038187EBFFDE603EFF03FAA4D798FC37.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratophysella anacopica Babenko & Antipova 2025	<div><p>Ceratophysella anacopica sp. nov.</p><p>Figs 32–40</p><p>Type material. Holotype female, Georgia, Abkhazia, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=40.8135&amp;materialsCitation.latitude=43.0838" title="Search Plazi for locations around (long 40.8135/lat 43.0838)">New Athos</a> (Akhali Atoni), stony beach, close to water [43.0838°N 40.8135°E], 07.11.2015. M. Bizin leg. Deposited in MSPU.</p><p>Paratypes 1 male &amp; 3 females, same habitat as holotype.</p><p>Diagnosis. A middle-sized species of the denticulata - group, which differs from other members of the group by the following combination of characters: labium with only four papillae (papilla C absent), fine and uniform cuticular granulation, Ant. IV with four dorsal and two dorsolateral sensilla (sensilla S3? absent), moderate differentiation of dorsal setae with short straight macrosetae and curved fine microsetae, Th. II with only microsetae in a-row and usually three m-setae in dorsolateral group (m3, m4 &amp; m5), axial setae on Abd. IV situated in almost parallel rows, and full sized furca with a typical set of seven setae.</p><p>Description. Body length without antennae 1.1–1.3 mm, holotype 1.3 mm. Habitus typical of the genus. General body colour in alcohol brownish, dark blue pigment diffusely distributed on dorsal side, ventral side paler. Integument granulation rather fine and uniform, although because of relatively small body size, Abd. V with only 8–10 granules between setae p1.</p><p>Antennae in length equal to head. Ant. IV with a simple or slightly divided apical bulb, six blunt sensilla (four dorsal, S0, S1, S2, and S4 and two dorsolateral (external), S7 and S8) cylindrical in shape, elongated and curved, well differentiated from common setae (Fig. 35); subapical organite (or) and microsensillum (ms) present as usual; ventral sensory file with few short blunt setae (Fig. 36). Eversible sac between Ant. III and Ant. IV prominent (Fig. 35). Ant. III with typical AO, the latter composed of two short inner club-shaped sensilla, two guard sensilla and ms on outer side (Fig. 35). Ant. I–II with 7 and 12(13) smooth common setae, respectively.</p><p>Head with 8+8 subequal eyes. PAO 2.6–3.1 times larger than adjacent ocellus, consisting of two long anterior and two rounded posterior lobes, an accessory boss invisible (Fig. 37). Labrum with usual set of 4/554 setae, its distal edge without distinct papillae. Labial palp as in C. succinea, with only four papillae (A, B, D, E; papilla C absent) and 14 guards, among them a1, b1, b2, d2, and e2 shorter and set on low papillae, a1 slightly thickened, lateral process (lp) rudimentary (Fig. 38). Number of proximal setae on labial palp in available material rather variable (5–7) and often asymmetrical. Basomedial field of labium (submentum) with four setae, basolateral field (mentum) with five setae, as usual. Head with 3+3 postlabial setae along ventral line. Maxillary head of the denticulata - type, with three teeth in main part and six usual lamellae, L.1 extending past tip of maxillary teeth and slightly expanded at apex. Outer maxillary lobe simple, with one sublobal hair as usual for the group.</p><p>Chaetotaxy complete and typical of the denticulata - group, dorsal setae poorly differentiated, especially so on head and thorax (Fig. 32), with macrosetae growing longer only on last abdominal segments (Fig. 33) and laterally on head. All setae fine and smooth, macrosetae usually straight, microsetae curved, sensorial setae longer than microsetae and clearly shorter than macrosetae on all segments except for Abd. V. Main peculiarities of tergal chaetotaxy: Th. II–III with all setae in a-row as microsetae of similar length; Th. II with three m-setae in dorsolateral group (m3–m5), whereas Th. III with two such setae (m4 and m5); macrosetae p2 and p3 subequal and about as long as 1.5 × p1 microsetae; a lateral ms present on Th. II as usual. Abdominal chaetotaxy: Abd. I–III with a2’ and m3–m4 present, macrosetae p4 on Abd. I only slightly longer than microsetae p3. Three pairs of axial setae (a1, m1 and p1) on Abd. IV situated in almost parallel rows. Abd. V without a2’, i.e. only 3 a-setae present between bases of macrosetae p1 and p5.</p><p>Chaetotaxy of legs 1–3 as follows: upper subcoxae—1, 3, 3 (among them, one macroseta on each subcoxa); lower subcoxae—0, (2)3, (2)3; coxae—3, 8, 8; trochanters—7, 7, 7; femora—14, 13, 12; tibiotarsi—19, 19, 18 setae, respectively. Tibiotarsal tenent setae (A1) acuminate, about as long as 1.2–1.3 × inner unguis edge (Fig. 39). Unguis with a small tooth in midsection of inner edge, lateral teeth invisible (Fig. 39). Unguiculus slightly exceeding the middle of unguis inner edge, with a clear basal lamella.</p><p>Ventral tube with 4+4 distal setae. Retinaculum with 4+4 teeth. Furca well-developed. Manubrium with 11–12 setae each side. Dens with seven dorsal setae; outer basal macroseta rather short, about as long as 0.5–0.6 × dens (Fig. 40), two distal inner setae thickened and slightly serrated in mid part. Mucro of usual shape with a high, triangular, outer lamella, 0.5 × as long as dens.</p><p>Anal spines light and relatively short, together with papillae about as long as inner unguis.</p><p>Etymology. Named after Anacopia, one of the ancient names of New Athos city where the new species was found.</p><p>Affinities. The most characteristic feature of the new species is undoubtedly the reduction of one of the labial papillae. This feature is not unique, but is known only for a limited number of species of the family Hypogastruridae . For the first time, such a structure of the labium was discovered by Fjellberg (1998) in C. succinea . The same author noted (Fjellberg 1999) the absence of papilla C from further three species from two other genera of the family, namely, Schaefferia czernovi (Martynova, 1978) and two species of the genus Triacanthella ( T. perfecta Denis, 1926 and Triacanthella sp. from Australia). Up to now, a similar structure of the labial palp has been found in three additional species of the genus Ceratophysella: C. kapoviensis, C. michalinae and C lucifuga (Packard, 1888) (see Skarżyński 2005, 2007), as well as in Hypogastrura hargrovei Skarżyński, 2007 . From three of the four abovementioned species of the genus Ceratophysella ( C. succinea, C. kapoviensis and C. michalinae), the new species is easily distinguished by a complete set of dental setae (7 versus 6, 5–6 and 4–6 setae, respectively), whereas the American cave species C. lucifuga is characterised by the absence of an eversible sac from the antennae and the colouration (except for the eyespot), the trilobed apical papilla on the Ant. IV, and clearly differentiated long dorsal setae. However, the structure of the labium, by which one could easily distinguish the new species, is, unfortunately, unknown for most congeners. Even for species described since 1998, the absence or presence of labial papilla C is not always indicated. Thus, of 25 such species (Bellinger et al. 1996 –2025), the structure of the labium has been described in 13, of which only one ( C. michalinae) has a labial palp of the succinea - type.</p><p>Another characteristic feature of C. anacopica sp. nov. is a weak differentiation of dorsal setae, which is rather unusual for species of the denticulata- group. In the European fauna, the only species relatively similar in this character is C. caucasica Martynova, 1971, in which, at least on the thorax, the setae are rather short and not very sharply differentiated. In addition, both species are characterised by the presence of three m-setae (m3, m4, m5) in the dorsolateral group on Th. II, which is more typical of the armata- group. Nevertheless, these two species are sharply different in a number of characters, in particular, C. caucasica is characterised by the presence of a large outgrowth of the integument with coarser granulation on Abd. V, antennae with 7(8) dorsal sensilla and a strongly developed ventral sensillar file. In addition, the labium of this species is of the usual denticulata- type with 5 papillae and 6 proximal setae (unpublished data).</p><p>Among the Asian species of the denticulata- group, a weak differentiation of dorsal setae and a relatively fine granulation of the integument are characteristic, for instance, of C. kutyrevae, described from Primorsky Krai. This species is characterised by the absence of colouration (except for the eyespot), a markedly reduced dorsal chaetotaxy, and the presence of only 6 dental setae. In addition, the labial palp in this species is of the denticulatatype, with five usual papillae and six proximal setae (unpublished data).</p><p>Based on the key to the Palearctic species of the genus (Thibaud et al. 2004), the new species keys out either as C. annae (Babenko, 1994; in Babenko et al. 1994), known from similar coastal communities from both coasts of the Pacific Ocean, or the widespread C. engadiensis (Gisin, 1949), or the boreal C. brevis (Christiansen &amp; Bellinger, 1980) . The former species is most similar to C. anacopica sp. nov. in the weakly differentiated dorsal setae and the relatively fine granulation of the integument, as well as in Ant. IV with only 6 dorsal sensilla, the weakly developed ventral file, the presence of three m-setae in the dorsolateral group on Th. II, and relatively short anal spines. Nevertheless, C. annae differs from the new species in the presence of only 2+2 setae on Th. I (vs usual 3+3 setae in C. anacopica sp. nov.), clavate tibiotarsal setae (vs acuminate in C. anacopica sp. nov.), 4 thickened dental setae (vs only 2 such setae in C. anacopica sp. nov.), PAO with subequal anterior and posterior lobes, and the peculiar shape of the maxillary head (vs the denticulata- type in C. anacopica sp. nov.). The other two species mentioned above, C. engadiensis and C. brevis, are in fact strongly different from C. anacopica sp. nov., even though they all share the absence of a2’ setae from Abd. V.</p><p>Distribution and ecology. The new species is known so far only from the type locality: the Black Sea coast of the Caucasus (Fig. 1), where it was discovered in conditions that are quite unusual for representatives of the genus (on a rocky beach in close proximity to water).</p></div>	https://treatment.plazi.org/id/038187EBFFDE603EFF03FAA4D798FC37	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Babenko, Anatoly;Antipova, Maria	Babenko, Anatoly, Antipova, Maria (2025): Two new species of the springtail genus Ceratophysella Börner, 1932 from the Caucasus (Collembola: Hypogastruridae). Zootaxa 5725 (3): 391-408, DOI: 10.11646/zootaxa.5725.3.4, URL: https://doi.org/10.11646/zootaxa.5725.3.4
038187EBFFDA603EFF03FBCAD12EF9D3.text	038187EBFFDA603EFF03FBCAD12EF9D3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratophysella caucasica Martynova 1971	<div><p>Ceratophysella caucasica Martynova, 1971</p><p>Material. 4 females, and 53 juveniles, ~120 ind. in ethanol, Russia, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=42.68571&amp;materialsCitation.latitude=43.218" title="Search Plazi for locations around (long 42.68571/lat 43.218)">Northern Caucasus</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=42.68571&amp;materialsCitation.latitude=43.218" title="Search Plazi for locations around (long 42.68571/lat 43.218)">Kabardino-Balkarian Republic</a>, Adylsu River valley, Kashkatash glacier foreland, 43.217998°N, 42.685711°E, 2300 m alt., pine forests, numerous on mushrooms, 16.07– 3.08.2023, M. Antipova &amp; A. Babenko leg ; 6 females, and 43 juveniles, ~300 ind. in ethanol <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=41.555443&amp;materialsCitation.latitude=43.30155" title="Search Plazi for locations around (long 41.555443/lat 43.30155)">Karachay-Cherkess Republic</a>, Dombai, 43.301551°N, 41.555444°E, ~ 2000 m alt., willow-birch forests, mushrooms, 15– 25.07.2024, M. Antipova leg.</p><p>Remarks. The species possesses a noticeable feature, a spherical integumentary outgrowth on Abd. V, which relates it to C. stercoraria (Stach, 1963) from Central Asia. It is no coincidence that specimens from the vicinity of Sukhumi (Abkhazia) were initially identified by Martynova (1964) as C. stercoraria (Stach, 1963) . Subsequently, based on this same material, it was described as C. caucasica (Martynova, 1971) . According to Babenko et al. (1994), mixed populations of these two species were recorded from the Caucasus.</p><p>DNA material. GenBank under accession numbers PX505038, PX505039.</p></div>	https://treatment.plazi.org/id/038187EBFFDA603EFF03FBCAD12EF9D3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Babenko, Anatoly;Antipova, Maria	Babenko, Anatoly, Antipova, Maria (2025): Two new species of the springtail genus Ceratophysella Börner, 1932 from the Caucasus (Collembola: Hypogastruridae). Zootaxa 5725 (3): 391-408, DOI: 10.11646/zootaxa.5725.3.4, URL: https://doi.org/10.11646/zootaxa.5725.3.4
