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1 |
Males | |||||||||||||
- | Females | |||||||||||||
2 (1) |
Head region tower like extended Walckenaeria acuminata Blackwall, 1833 |
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- | Different | |||||||||||||
3 (2) |
Prosomal process narrow, long and forked; pedipalp as fig. Walckenaeria furcillata (Menge, 1869) |
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- | Different | |||||||||||||
4 (3) |
Cephalic lobe distinct, ± as high as long, in some species almost as high as long | |||||||||||||
- | Cephalic lobe half as high as long at most, horn-shaped or cone-shaped process or missing | |||||||||||||
5 (4) |
Cephalic lobe divided into two parts by deep constriction | |||||||||||||
- | Different | |||||||||||||
6 (5) |
Anterior part of cephalic lobe distinctly larger than posterior part Walckenaeria capito (Westring, 1861) |
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- | Anterior part of cephalic lobe equal in size or smaller than posterior part | |||||||||||||
7 (6) |
Anterior part of cephalic lobe smaller than posterior part; tibial apophysis with ventral branch tapering to a tip, dorsal branch with three blunt teeth Walckenaeria cucullata (C. L. Koch, 1836) |
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- | Anterior part of cephalic lobe approximately equal in size as posterior part; tibial apophysis without dorsal branch, 3-4 teeth on stem of inner apophysis; smaller than cucullata Walckenaeria languida (Simon, 1915) |
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8 (5) |
Cephalic lobe distinctly marked off; pedipalp as fig. Walckenaeria mitrata (Menge, 1868) |
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- | Different | |||||||||||||
9 (8) |
Cephalic lobe distinctly higher than long; pedipalp as fig. Walckenaeria nodosa O. Pickard-Cambridge, 1873 |
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- | Different | |||||||||||||
10 (9) |
Cephalic lobe as fig.; embolus spiral, approximately 1.5 loops, conducted by membranous conductor at tip; tibial apophysis pointed and bent Walckenaeria incisa (O. Pickard-Cambridge, 1871) |
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- | Cephalic lobe as fig.; embolus spiral, approximately one loop; tibial apophysis different | |||||||||||||
11 (10) |
Cephalic lobe as fig.; embolus narrowly twisted Walckenaeria antica (Wider, 1834) |
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- | Embolus widely twisted; otherwise similar to antica and hardly distinguishable without comparison Walckenaeria alticeps (Denis, 1952) |
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12 (4) |
Between anterior median eyes and posterior median eyes a tuft of bent plumose hairs; without cephalic lobe; pedipalp as fig. Walckenaeria monoceros (Wider, 1834) |
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- | Different | |||||||||||||
13 (12) |
Prosoma with semi-high cephalic lobe | |||||||||||||
- | Different | |||||||||||||
14 (13) |
Prosoma with narrow, horn-shaped or cone-shaped processes between eyes | |||||||||||||
- | Prosoma without conspicuous processes | |||||||||||||
15 (13) |
Prosoma step-like elevated anteriorly, in the middle of dorsal line with a distinct depression; tibia with two equally long apophyses Walckenaeria atrotibialis (O. Pickard-Cambridge, 1878) |
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- | Different | |||||||||||||
16 (15) |
Prosoma anterior to cephalic lobe with a horn-shaped structure consisting of 15-20 merged hairs; pedipalp as fig.; Walckenaeria stylifrons (O. Pickard-Cambridge, 1875) |
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- | Prosoma without this structure | |||||||||||||
17 (16) |
Tibial apophysis long, bent, tapering to a tip, on its base another pointed process Walckenaeria obtusa Blackwall, 1836 |
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- | Tibial apophysis long, bent, bluntly tapering, on its base another bent, blunt process; prosoma as fig.; legs completely spineless Walckenaeria simplex Chyzer, 1894 |
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18 (14) |
Between the eyes a bipartite or distally broadened cone-shaped tubercle | |||||||||||||
- | Between the eyes a single cone-shaped tubercle, which bears longer hairs distally | |||||||||||||
19 (18) |
Ends of cone-shaped tubercle forwardly bent; pedipalp with large, spiral embolus Walckenaeria kochi (O. Pickard-Cambridge, 1873) |
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- | Ends of cone-shaped tubercle not bent | |||||||||||||
20 (19) |
Tibial apophysis with 2 crossing processes Walckenaeria clavicornis (Emerton, 1882) |
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- | Tibial apophysis with 2 bent processes, not crossing Walckenaeria unicornis O. Pickard-Cambridge, 1861 |
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21 (18) |
Cone-shaped tubercle protruding forwards; embolus grooved near tip Walckenaeria cuspidata Blackwall, 1833 |
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- | Cone-shaped tubercle projecting upwards: pedipalp with non-grooved embolus and claw-shaped terminal apophysis Walckenaeria corniculans (O. Pickard-Cambridge, 1875) |
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22 (14) |
Pedipalp with small paracymbium; tibial apophysis rounded and simple Walckenaeria vigilax (Blackwall, 1853) |
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- | Pedipalp with large paracymbium; tibial apophysis complex | |||||||||||||
23 (22) |
Paracymbium ± U-shaped; tibial apophysis distally with 2 long processes Walckenaeria nudipalpis (Westring, 1851) |
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- | Paracymbium ± elongated; tibial apophysis distally with one long process Walckenaeria dysderoides (Wider, 1834) |
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24 (1) |
Epigyne with scapus; Vulva as fig. Walckenaeria dysderoides (Wider, 1834) |
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- | Epigyne without distinct scapus | |||||||||||||
25 (24) |
Epigyne with 2 tongue-shaped plates, reaching far beyond epigastric furrow Walckenaeria clavicornis (Emerton, 1882) |
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- | Different | |||||||||||||
26 (25) |
Margins of lateral epigynal plates ± parallel, Y-like diverging anteriorly Walckenaeria unicornis O. Pickard-Cambridge, 1861 |
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- | Different | |||||||||||||
27 (26) |
Median epigynal plate nose-shaped, reaching beyond epigastric furrow | |||||||||||||
- | Different | |||||||||||||
28 (27) |
Epigyne and vulva as fig. Walckenaeria cucullata (C. L. Koch, 1836) |
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- | Epigyne and vulva as fig.; smaller than cucullata Walckenaeria languida (Simon, 1915) |
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29 (27) |
Median epigynal plate semicircular, reaching beyond epigastric furrow | |||||||||||||
- | Different | |||||||||||||
30 (29) |
Median epigynal plate conspicuously sclerotised on posterior epigynal margin | |||||||||||||
- | Part of median epigynal plate which reaches beyond epigastric furrow without conspicuously margin | |||||||||||||
31 (30) |
Median epigynal plate anteriorly distinctly marked off as roundish oval plate Walckenaeria furcillata (Menge, 1869) |
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- | Median epigynal plate not marked off anteriorly Walckenaeria incisa (O. Pickard-Cambridge, 1871) |
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32 (30) |
Median epigynal plate broadly projecting beyond epigastric furrow Walckenaeria stylifrons (O. Pickard-Cambridge, 1875) |
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- | Median epigynal plate roundly projecting beyond epigastric furrow Walckenaeria nodosa O. Pickard-Cambridge, 1873 |
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33 (29) |
Length of marked off part of median epigynal plate approximately 3/4 of epigynal length | |||||||||||||
- | Length of marked off part of median epigynal plate 1/2 of epigynal length at most | |||||||||||||
34 (33) |
Median epigynal area hourglass-shaped, widest posteriorly Walckenaeria kochi (O. Pickard-Cambridge, 1873) |
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- | Different | |||||||||||||
35 (34) |
Median epigynal area widest anteriorly Walckenaeria mitrata (Menge, 1868) |
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- | Epigyne and vulva as fig. Walckenaeria simplex Chyzer, 1894 |
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36 (33) |
Median epigynal plate distinctly marked off from remaining epigynal area Walckenaeria capito (Westring, 1861) |
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- | Median epigynal plate merging with remaining epigynal on anterior margin at least | |||||||||||||
37 (36) |
Eye region of prosoma strongly elevated Walckenaeria acuminata Blackwall, 1833 |
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- | Different | |||||||||||||
38 (37) |
Receptaculum seminis visible through epigynal plate | |||||||||||||
- | Receptaculum seminis not visible through anterior or median epigynal part | |||||||||||||
39 (38) |
Median epigynal plate broad; roundish, separated entrance ducts visible through epigyne Walckenaeria nudipalpis (Westring, 1851) |
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- | Median epigynal plate trapezoid; entrance ducts Y-shaped Walckenaeria obtusa Blackwall, 1836 |
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40 (38) |
Receptaculum seminis only visible through anterior or median epigynal area | |||||||||||||
- | Entrance ducts, like receptaculum seminis ± distinctly visible | |||||||||||||
41 (40) |
Anterior margin of median epigynal plate bent inwards Walckenaeria atrotibialis (O. Pickard-Cambridge, 1878) |
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- | Different | |||||||||||||
42 (41) |
Epigynal area almost twice as long as wide; receptacula seminis visible through epigyne, separated by 1.5 diameter Walckenaeria vigilax (Blackwall, 1853) |
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- | Epigynal area ± as long as wide; receptacula seminis visible through epigyne, separated by 0.5 diameter Walckenaeria corniculans (O. Pickard-Cambridge, 1875) |
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43 (40) |
Posterior epigynal margin rounded, receptaculum seminis and entrance ducts H-shaped (shining through epigyne) | |||||||||||||
- | Posterior epigynal margin straight, structures visible through epigyne not H-shaped | |||||||||||||
44 (43) |
Epigyne and vulva as fig. Walckenaeria alticeps (Denis, 1952) |
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- | Epigyne as fig.; very similar to alticeps Walckenaeria antica (Wider, 1834) |
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45 (43) |
Median epigynal plate ± trapezoid, its anterior margin bent inwards Walckenaeria cuspidata Blackwall, 1833 |
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- | Median epigynal plate only hinted Walckenaeria monoceros (Wider, 1834) |