Cybaeus consocius, Chamberlin & Ivie, 1932

Bennett, Robb, Copley, Claudia & Copley, Darren, 2021, Cybaeus (Araneae: Cybaeidae): the consocius species group of the Californian clade, Zootaxa 4965 (3), pp. 401-436 : 403-404

publication ID

https://doi.org/ 10.11646/zootaxa.4965.3.1

publication LSID

lsid:zoobank.org:pub:94FB89CF-2083-4FAC-AE60-B8CCF1D5FE8E

DOI

https://doi.org/10.5281/zenodo.4727166

persistent identifier

https://treatment.plazi.org/id/038B87C3-1901-BE2C-FF3A-6CE2FA589E3E

treatment provided by

Plazi

scientific name

Cybaeus consocius
status

 

Key to the species of the Cybaeus consocius View in CoL group

1. Proximal arm of tegular apophysis in ventral view with tip forked ( Fig. 3 View FIGURES 1–4 , 20 View FIGURES 20–22 ), bifid ( Figs 11 View FIGURES 10–12 , 21 View FIGURES 20–22 ), or a broad trough ( Figs 18 View FIGURES 18–19 , 22 View FIGURES 20–22 ); in retrolateral view with smoothly, simply curved dorsal margin ( Figs 4 View FIGURES 1–4 , 12 View FIGURES 10–12 , 19 View FIGURES 18–19 ). Proximal loops of copulatory ducts distinctly U-shaped in dorsal view of vulva ( Figs 7 View FIGURES 5–9 , 15 View FIGURES 13–17 , 25 View FIGURES 23–26 )...................................................... 2

- Proximal arm of tegular apophysis in ventral view with tip acuminate and/or spirally twisted ( Figs 28 View FIGURES 27–29 , 35 View FIGURES 33–36 , 44 View FIGURES 42–45 , 55–56 View FIGURES 55–58 , 61 View FIGURES 59–63 , 82 View FIGURES 80–83 ) or blunt with long, narrow ventral trough ( Figs 70 View FIGURES 68–71 , 73 View FIGURES 72–73 ); in retrolateral view, dorsal margin a simple curve ( Figs 36 View FIGURES 33–36 , 83 View FIGURES 80–83 ) or a more complex compound curve ( Figs 29 View FIGURES 27–29 , 45 View FIGURES 42–45 , 62 View FIGURES 59–63 ). Proximal loops of copulatory ducts not distinctly U-shaped in dorsal view ( Figs 32 View FIGURES 30–32 , 41 View FIGURES 37–41 , 48 View FIGURES 46–51 , 66 View FIGURES 64–67 , 79 View FIGURES 74–79 )........................................................................................ 4

2(1). Proximal arm of tegular apophysis in ventral view with broad, ventral trough terminating in a small point ( Figs 18 View FIGURES 18–19 , 22 View FIGURES 20–22 ). Atrium divided ( Figs 23, 26 View FIGURES 23–26 )............................................................. hummeli Bennett View in CoL spec. nov.

- Proximal arm of tegular apophysis in ventral view conspicuously forked ( Fig. 3 View FIGURES 1–4 ) or with inconspicuously bifid tip ( Fig. 11 View FIGURES 10–12 ). Atrium undivided, inverted U-shaped ( Figs 5, 9 View FIGURES 5–9 , 13 View FIGURES 13–17 ).......................................................... 3

3(2). Proximal arm of tegular apophysis with inconspicuously bifid tip ( Fig. 11 View FIGURES 10–12 ). Atrium convex medially, concave laterally ( Fig. 13 View FIGURES 13–17 ). Copulatory ducts attached to anterolateral corners of atrium and extending anteriorly from the atrium a distance equal to about 1/4 to 2/5 the distance from epigastric groove to anterior margin of atrium ( Figs 14–15 View FIGURES 13–17 )......... hesper Chamberlin & Ivie View in CoL

- Proximal arm of tegular apophysis with right-angled fork ( Fig. 3 View FIGURES 1–4 ). Atrium concave ( Figs 5, 9 View FIGURES 5–9 , 16 View FIGURES 13–17 ). Copulatory ducts attached to lateral margins of atrium ( Figs 6–8 View FIGURES 5–9 , 17 View FIGURES 13–17 ); extending little or no distance anteriorly from atrium… consocius Chamberlin & Ivie View in CoL

4(1). Patellar apophysis with small dorsobasal prominence bearing several peg setae ( Figs 68–69 View FIGURES 68–71 , 72 View FIGURES 72–73 ). Tibia with small ridge dorsomedially above retrolateral tibial apophysis ( Figs 68–69 View FIGURES 68–71 ). Medial portion of embolus flattened, ribbon-like ( Figs 70–71 View FIGURES 68–71 ). Proximal arm of tegular apophysis blunt with narrow longitudinal trough ventrally ( Figs 70–71 View FIGURES 68–71 , 73 View FIGURES 72–73 ). Atrium large, nearly as wide as vulva ( Figs 74, 77 View FIGURES 74–79 ). Copulatory ducts broad, prominent; converging from atrium to midline then diverging before turning posteriorly at anterior margin of vulva ( Figs 75–76, 78–79 View FIGURES 74–79 )................................ ubicki Bennett View in CoL spec. nov.

- Patellar apophysis without dorsobasal prominence ( Figs 27 View FIGURES 27–29 , 34 View FIGURES 33–36 , 43 View FIGURES 42–45 , 60 View FIGURES 59–63 , 81 View FIGURES 80–83 ). Tibia without dorso-medial ridge. Embolus “normal” ( Figs 35 View FIGURES 33–36 , 44 View FIGURES 42–45 , 61 View FIGURES 59–63 ). Tip of proximal arm of tegular apophysis acuminate ( Figs 35 View FIGURES 33–36 , 44 View FIGURES 42–45 , 61, 63 View FIGURES 59–63 ). Atrium large but not nearly as wide as vulva ( Figs 30 View FIGURES 30–32 , 37 View FIGURES 37–41 , 64 View FIGURES 64–67 ) or small ( Figs 46–47 View FIGURES 46–51 , 52 View FIGURES 52–54 ). Copulatory ducts narrower (or, if broad, then membranous and not prominent); not following trajectory of converging then diverging before turning posteriorly ( Figs 31 View FIGURES 30–32 , 40 View FIGURES 37–41 , 47 View FIGURES 46–51 , 65 View FIGURES 64–67 )......... 5

5(4). Patellar apophysis with two to six peg setae ( Fig. 43 View FIGURES 42–45 ). Proximal arm of tegular apophysis with prominent ventral keel and terminating in short, slightly twisted tip ( Figs 44–45 View FIGURES 42–45 , 56 View FIGURES 55–58 ). Atrium small, inconspicuous, its width equal to about 1/3 of the width of the vulva ( Figs 46–47 View FIGURES 46–51 , 52 View FIGURES 52–54 )............................................................ penedentatus Bennett View in CoL

- Patellar apophysis with 13 to 40 peg setae ( Figs 27 View FIGURES 27–29 , 34 View FIGURES 33–36 , 60 View FIGURES 59–63 , 81 View FIGURES 80–83 ). Proximal arm of tegular apophysis without ventral keel; tip twisted or not ( Figs 28 View FIGURES 27–29 , 35 View FIGURES 33–36 , 57 View FIGURES 55–58 , 61, 63 View FIGURES 59–63 ). Atrium larger, more conspicuous, its width about 1/2 to 2/3 width of the vulva ( Figs 30 View FIGURES 30–32 , 37 View FIGURES 37–41 , 64 View FIGURES 64–67 ).............................................................................................. 6

6(5). In retrolateral view, dorsal margin of tegular apophysis a simple curve, lacking a proximal projection ( Figs 36 View FIGURES 33–36 , 83 View FIGURES 80–83 ). Copulatory ducts usually only contiguous at atrium ( Figs 38, 40 View FIGURES 37–41 ). Femora usually banded..................................... 7

- In retrolateral view, dorsal margin of tegular apophysis a compound curve with a prominent proximally directed projection ( Figs 29 View FIGURES 27–29 , 61–62 View FIGURES 59–63 ). Copulatory ducts usually contiguous at atrium and medially ( Figs 31–32 View FIGURES 30–32 , 65–67 View FIGURES 64–67 ). Femora usually unbanded ................................................................................................... 8

7(6). About 13 peg setae around tip of short, anteriorly directed patellar apophysis ( Fig. 81 View FIGURES 80–83 ). Proximal arm of tegular apophysis with simple moderately corkscrewed tip lacking a dorsal process ( Figs 57 View FIGURES 55–58 , 83 View FIGURES 80–83 ). Spermathecal stalks slightly sinuous, describing an obtuse angle of about 120 ⁰ –130 ⁰ near Bennett’s glands ( Fig. 41 View FIGURES 37–41 )................................... vulpinus Bennett View in CoL

- About 35 peg setae dorsally on long, anterolaterally directed patellar apophysis ( Fig. 34 View FIGURES 33–36 ). Proximal arm of tegular apophysis with simple untwisted tip; tip with small, triangular dorsal process ( Figs 35 View FIGURES 33–36 , 58 View FIGURES 55–58 ). Spermathecal stalks more strongly sinuous, describing an acute angle of about 55 ⁰ –65 ⁰ near Bennett’s gland ( Fig. 39 View FIGURES 37–41 )...................... pan Bennett View in CoL spec. nov.

8(6). Patellar apophysis long, about as long as width of patella, with 15–25 peg setae ( Fig. 60 View FIGURES 59–63 ). Proximal arm of tegular apophysis with prominent basal projection and strongly twisted tip ( Figs 61–63 View FIGURES 59–63 ). Copulatory ducts and spermathecal stalks elongate ( Figs 65–67 View FIGURES 64–67 )..................................................................................... simplex Roth View in CoL

- Patellar apophysis shorter, length about 2/3 patellar width, with 30–40 peg setae ( Fig. 27 View FIGURES 27–29 ). Proximal arm of tegular apophysis with much less prominent basal projection and a weakly twisted tip ( Figs 28–29 View FIGURES 27–29 ). Copulatory ducts and spermathecal stalks short ( Figs 31–32 View FIGURES 30–32 )............................................................... opulentus Bennett View in CoL spec. nov.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Cybaeidae

Genus

Cybaeus

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