
Arrhopalites
Blegkuglespringere(+2)·C.Börner, 1906
GBIF:2122170

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Species Profile
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ABOUT
Descriptions(16)
Key for identification of neotropical Arrhopalites
1 Anal valve cuticular spines absent ................................................................................ 2
Anal valve cuticular spines present............................................................................... 8
2 Ant IV not subdivided, all unguis with a filamentous inner tooth ................ A. diversus
Ant IV subdivided, inner teeth not filamentous when present ..................................... 3
3 Ant IV subdivided into 5 subsegments ......................................................................... 4
Ant IV subdivided into 6 or more subsegments............................................................ 7
4 Ant III basal swelling present........................................................................................ 5
Ant III basal swelling absent......................................................................................... 6
5 Female subanal appendages spoon shaped with fringed edges (4d) ............ A. plectrifer
Female subanal appendages a simple rod withfringed apex (14a) ................... A. dubius
6 Female subanal appendages branche or deeply serrated (5c) ......................... A. benitus
Female subanal appendages simple rod with fringed apex (1ad) ................ A. pygmaeus
7 Ant IV subdivided into 6 subsegments, eyes 1+1 ........................................... A. amarus
Ant IV subdivided into 7 subsegments, eyes 2+2 ....................................... A. bellingeri
8 Eyes 2+2....................................................................................................................... 9
Eyes 1+1..................................................................................................................... 10
9 Ant IV subdivided into 4 ringed subsegments, anal valve C1 lamelate ........ A. amorimi
Ant IV subdivided into 6 ringed subsegments, C1 swollen basally................................ ...................................................................................................... A. heteroculatus sp.n.
10 Ant IV not subdivided. ............................................................................................... 11
Ant IV subdivided ....................................................................................................... 14
11 Dental id3 present, medial ve1 spinelike. .................................................................. 12
Dental id3 absent, ve1 normal..................................................................................... 13
12 Anal valve C3–C6 lamellate, all ungues with tunica and inner tooth .............. A. caecus
C3–C6 swollen basally, first unguis without inner tooth, tunica absent ............ A. millsi
13 Anal valve upper flap with 4 cuticular spines (s0 absent), tunica absent ........ A. harveyi
anal valve upper flap with 5 spines (s0 present), tunica present. A. alambariensis sp.n.
14 Ant IV subdivided into 5 ringed subsegments ........................................................... 15
Ant IV subdivided into 6 ringed subsegments ............................................................ 16
15 Anal valve C1 lamellate, first unguis without tunica ................... A. botuveraensis sp.n.
Anal valve C1 swollen basally, all unguis with tunica ............................... A. vazquezae
16 Tunica absent, anal valve C1 swollen basally ............................................. A. lawrencei
Tunica present, anal valve C1 lamellate...................................................................... 17
17 Cephalic setae M3–5 not spinelike, dental E4–5 spinelike, third unguiculus without apical filament .............................................................................................. A. gnaspinii
Cephalic M3–5 spinelike, dental E4–5 normal, third unguiculus with short apical fila ment not exceeding theunguis tip................................................... A. paranaensis sp.n.
Genus Arrhopalites Börner, 1906
Syn.: Pseudarrhopalites Stach, 1945: 7
Coecarrhopalites Yosii, 1954: 68
Key to species of the Caucasian Arrhopalites Börner, 1906
1 Spine-like setae on head dorsum present; cuticular spines on female Abd VI present; claws without clear modifications; tip of mucro swollen....................................................................................... 2
- Spine-like setae on head dorsum absent; cuticular spines on female Abd VI absent; claws much elongated; tip of mucro not swollen............................................................................................. 3
2 Head dorsum with 13 spine-like setae; antenna about 1,5× head length; Ant III not modified; Ant IV without distinct subsegmentation; claw III with inner tooth and tunica......................... A. caecus (Tullberg, 1871) (troglophile)
- Head dorsum with 9 spine-like setae; antenna 2× head length; Ant III with basal swelling; Ant IV with 5–7 subsegments separated by several weakly developed annuli; claw III without inner tooth and tunica.............................................................................................. A. abchasicus Vargovitsh, 2013 (troglobiont)
3 Head dorsum with three axial setae; empodium III without corner tooth; dorsal valve of female Abd VI with 11 + 2 axial setae per side........................................................... A. colchicus Vargovitsh, 2025 (troglobiont)
- Head dorsum with four axial setae; empodium III with corner tooth; dorsal valve of female Abd VI with 10 + 2 axial setae per side................................................................................................ 4
4 Circumanal setae broadened, finely denticulated, and laterally serrated; appendices anales smooth and acuminate; femur II with 12 setae; claws I and II without inner tooth............................. A. macronyx Vargovitsh, 2012 (troglobiont)
- Circumanal setae ordinary; appendices anales apically denticulated; femur II with 13 setae; claws I and II with minute inner tooth............................................................ A. profundus Vargovitsh, 2022 (troglobiont)
KEY FOR IDENTIFICATION OF THE ASIAN Arrhopalites .
1 Ventral dental seta ve5 present ...................................................................................... 2
Ve5 never present .......................................................................................................... 7
2 Anal valve spines 3+2 on each side ............................................................................. 3
Anal valve spines 2+2 or 2+1 or absent ........................................................................ 4
3 Seta E1011 of the anal valve absent, dorsal dental setae E67 present, L4 spinelike, ventral setae of dens 3:2:1:1:1, ant. iv with 5 ringed subsegments. A. antrobius (fig. 2)
Setae E1011 of the anal valve present, dorsal dental setae E7 absent, L4 absent, ventral setae of dens 3:2:2:1:1, ant. Iv with 6 ringed subsegments, first unguis without tunica A. anulifer
4 Anal valve spines absent ............................................................................................... 5
Anal valve spines present.............................................................................................. 6
5 Ant. iv not subsegmented, all ungues with inner tooth, all unguiculi with corner tooth, dental Id23 absent, eyes absent............................................................... A. pukouensis
Ant. iv with 7 ringed subsegments, no inner tooth, no corner tooth, dental Id23 present, 1+1 eyes present ....................................................................................... A. gul
6 Anal valve spines 2+2 on each side, ventral dental setae 3:2:1:1, anal valve setae C36 basally swollen or weakly lamellate, tenaculum with one seta on anterior process, unguis I without inner tooth...................................................................…....... A. nivalis
Anal valve spines 2+1 on each side, ventral dental setae 3:2:1:1:1, anal valve setae C3 6 clearly lamellate, tenaculum with two setae on anterior process, unguis I with a small inner tooth .......................................................................................... A. minutus (fig. 6)
7 Anal valve seta C1 forked,.............................................................................................8
Anal valve seta C1 not forked ...................................................................................... 9
8 Female subanal appendage rodlike, flattened and barbed in distal two thirds, C26 swollen basally, D5, E910 present, no tunica................................…... A. habei (fig. 4)
Female subanal appendage forked and laterally serrated, C26 as normal setae, D5, E910 absent, ungues II and III with tunica.......................................….. A. carpathicus
9 Eyes absent, ant. iv with 15 subsegments........................................….. A. uenoi (fig. 8)
Eyes present, ant. Iv with 8 subsegments or less.............................….........................10
10 Dental seta E2 not spinelike, E3 strongly spinelike ................................................... 11
Dental seta E2 and E3 spinelike..............................................................…….............14
11 AnalvalvesetaeC16notswollenbasally,subanalappendageforkedandexternallyserrated A. chiangdaoensis
Anal valve setae C16 swollen basally, subanal appendage not forked ..................... 12
12 AnalvalvesetaC78basallyswollen,D5absent,dentalId23present,ant.iiibasallyswollen A. alticola (fig. 1)
Anal valve setae C78 not swollen basally, D5 present, dental Id23 absent, ant. Iii not swollen basally ........................................................................................................... 13
13 Ant. iv with 7 subsegments, cephalic spines absent, anal valve setae C26 slightly swollen basally, subanal appendage broadly flattened with distal half serrated ............ ................................................................................................................ A. nanjingensis
Ant. iv with 5 subsegments, cephalic spines present, anal valve setae C26 strongly swollen basally, subanal appendage deeply serrate in palmate fashion ... A. kolymensis
14 Ant. iii without basal swelling......................................................….........................15
Ant. iii with basal swelling................................................................……...................16
15 All unguiculi with corner tooth, supplementary IL present in posterior part of head, ant. iv with 7 subsegments, female subanal appendage deeply serrate .......................... ....................................................................................................... A. yosii sp. n. (fig. 9)
Third unguiculus without corner tooth, supplementary IL absent in the posterior part of head, ant. iv with 5 subsegments, female subanal appendage rodlike and laterally serrated at the distal third ................................................................................. A. ruseki
16 Anal valve setae C36 laterally branched or serrate..................... A. changbaishanensis
Anal valve setae not branched or serrate laterally....................................................... 17
17 Anal valve setae C26 slightly swollen basally, D5, E8 and E1011 absent, D7 present, female subanal appendage rodlike, straight with serrate apex, ant. iv not subsegmented A. enzoensis sp. n. (fig. 3)
Anal valve setae C26 clearly swollen basally, D5, E8 and E11 present, D7 absent, female subanal appendage deeply serrate, ant. iv subsegmented............................... 18
18 Ant. iv 7 subdivided, cephalic M5 spinelike, female subanal appendage deeply serrate at the apex, dental L4, E7 and Id3 absent, no corner teeth, anal valve C34 weakly lamellate, E10 present ................................................................ A. octacanthus (fig. 7)
Ant. iv 8 subdivided, cephalic M5 absent, female subanal appendage serrate from the second third towards the tip, dental L4, E7 and Id3 present, anal valve C34 not lamellate E10 absent ................................................................................ A. japonicus (fig. 5)
Genus Arrhopalites Börner, 1906
Syn.: Coecarrhopalites Yosii, 1954: 68
Genus Arrhopalites Börner, 1906
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GEOGRAPHY
Distribution Map
REGIONS
Geographic Distribution(49)
DATA
Occurrence Datasets
Common names used for this species across different languages and regions. Available in 2 languages and 1 country.
Vernacular (common) names are the everyday names used for a species in different languages and regions. A single species may have dozens of common names worldwide. This taxon has names in 2 languages.
CLASSIFICATION
Taxonomic Classification Tree
RELATED
Related Name Usages(20)
Matching names from other GBIF-indexed checklists and datasets.
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FIGURES 2 – 18. Arrhopalites karabiensis sp. nov.: 2, outline of habitus; 3, chaetotaxy of head, frontal view; 4, chaetotaxy of great abdomen, lateral view; 5 – 16, shape of setae: (mpi 1) of Abd VI (5), (mps 2) of Abd VI (6), (ms 1) of Abd VI (7), posterior dorsal seta of great abdomen (8), (dI- 1) of great abdomen (9), anterior dorsal seta of abdomen (10), dorsal seta of mesothorax (11), spine-like (Ia) seta of dens (12), spine-like (Ipe) seta of dens (13), spine-like seta of head vertex (14), appendices anales, lateral view (15) and dorsal view (16); 17, tenaculum; 18, apex of mucro.

FIGURES 34 – 49. Arrhopalites peculiaris sp. nov.: 34, outline of habitus; 35, chaetotaxy of head, frontal view; 36, chaetotaxy of great abdomen of juv. specimen, lateral view; 37 – 47, shape of setae: (ms 1) of Abd VI (37), (mps 2) of Abd VI (38), (dI- 1) of great abdomen (39), posterior dorsal seta of great abdomen (40), anterior dorsal seta of abdomen (41), dorsal seta of mesothorax (42), (Ie) of dens (43), (Ia) of dens (44), spine-like seta of head vertex (45), appendices anales, dorsal view (46) and lateral view (47); 48, tenaculum; 49, apex of mucro.

FIGURES 63 – 76. Pygmarrhopalites tauricus sp. nov.: 63, outline of habitus; 64, chaetotaxy of head, frontal view; 65, chaetotaxy of great abdomen, lateral view; 66 – 75, shape of setae: (ms 1) of Abd VI (66), (mps 3) of Abd VI (67), (Ie) of dens (68), (Ia) of dens (69), seta of head vertex (70), appendices anales, dorsal view (71) and lateral view (72), dorsal seta of mesothorax (73), posterior dorsal seta of great abdomen (74), (dI- 1) of great abdomen (75); 76, tenaculum.

FIGURES 83 – 90. Pygmarrhopalites tauricus sp. nov.: 83, chaetotaxy of furca, posterior view; 84, apex of mucro; 85 – 87, chaetotaxy of tibiotarsus and foot complex: foreleg, posterior view (85), mid leg, posterior view (86), hind leg, anterior view (87); 88 – 90, chaetotaxy of trochanter and femur, anterior view: foreleg (88), mid leg (89), hind leg (90).

FIGURES 111 – 117. Pygmarrhopalites kaprusi sp. nov.: 111 – 112, chaetotaxy of foreleg, anterior view: trochanter and femur (111), tibiotarsus and foot complex (112); 113 – 114, chaetotaxy of mid leg, anterior view: tibiotarsus and foot complex (113), trochanter and femur (114); 115 – 116, chaetotaxy of hind leg, anterior view: tibiotarsus and foot complex (115), trochanter and femur (116); 117, chaetotaxy of furca, posterior view.

FIGURES 137 – 143. Pygmarrhopalites pseudoprincipalis sp. nov.: 137, 140, 142, chaetotaxy of trochanter and femur, anterior view: foreleg (137), mid leg (140), hind leg (142); 138 – 139, 141, chaetotaxy of tibiotarsus and foot complex: fore leg, anterior view (138), mid- (139) and hind leg (141), posterior view; 143, chaetotaxy of furca, posterior view.
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CITATIONS
References(9)
Bellinger, P. F.; Christiansen, K. A.; Janssens, F. (1996-current)). Checklist of the Collembola of the World (2023 version).
Brands, S. J. (compiler). (1989-2005). Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Originally available online at http://sn2000.taxonomy.nl/; for current information, refer http://taxonomicon.taxonomy.nl/ProjectDescription.aspx .
Brands, S. J. (compiler). (1989-2005). Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Originally available online at http://sn2000.taxonomy.nl/; for current information, refer http://taxonomicon.taxonomy.nl/ProjectDescription.aspx .
CoL 2006
Fjellberg (2008) Nordic checklist of Collembola. Excelfil till Per Alström 080303. Inkluderar fynd från Island och Färöarna samt nya fynd från Finland (Huhta/Pietikainen 2007)