Eridantes utibilis Crosby & Bishop 1933, Crosby & Bishop, 1933

Paquin, Pierre & Dupérré, Nadine, 2006, The spiders of Québec: update, additions and corrections, Zootaxa 1133, pp. 1-37: 14-15

publication ID

http://doi.org/ 10.5281/zenodo.273386

publication LSID

lsid:zoobank.org:pub:6744F78C-4CF2-4697-BC43-E637483651C3

persistent identifier

http://treatment.plazi.org/id/038687FF-DC43-FF88-FEF5-FEAD84ED7385

treatment provided by

Plazi

scientific name

Eridantes utibilis Crosby & Bishop 1933
status

 

Eridantes utibilis Crosby & Bishop 1933  

( Figs 25–28 View FIGURES 25 – 32. 25 – 28 )

Material examined.— Canada: Québec: Rouyn­Noranda: Labyrinthe Lake [48 ° 14 ’N, 79 ° 29 ’W] 07.– 14.vii. 1996, Malaise/flight interception trap (pan) in White cedar/Balsam fir forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Rouyn­Noranda: Labyrinthe Lake [48 ° 14 ’N, 79 ° 29 ’W] 12.vi. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Rouyn­Noranda: Labyrinthe Lake [48 ° 14 ’N, 79 ° 29 ’W] 12.vi. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Rouyn­Noranda: Labyrinthe Lake [48 ° 14 ’N, 79 ° 29 ’W] 24.vii. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Rouyn­Noranda: Labyrinthe Lake [48 ° 14 ’N, 79 ° 29 ’W] 18.viii. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ 2 Ψ, P. Paquin & N. Dupérré ( CPAD); Rouyn­Noranda: Labyrinthe Lake [48 ° 14 ’N, 79 ° 29 ’W] 18.ix. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ 2 Ψ, P. Paquin & N. Dupérré ( CPAD); Rouyn­Noranda: Labyrinthe Lake [48 ° 14 ’N, 79 ° 29 ’W] 13.ix. 1996, Berlese extraction from White cedar/Balsam fir forest, 2 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 29.v.–05.vi. 1994, Malaise/flight interception trap (pan) in mixed forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 12.– 19.vi. 1994, Malaise/flight interception trap (pan) in mixed forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 02.–09.ix. 1994, Malaise/flight interception trap (pan) in mixed forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 23.v.– 02.vi. 1996, pitfall in White cedar/Balsam fir forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 22.vii. 1997, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 22.viii. 1997, Berlese extraction poplar forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 22.viii. 1997, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 22.viii. 1997, Berlese extraction from poplar forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 22.ix. 1997, Berlese extraction from mixed forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 24.vii. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 18.viii. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 18.ix. 1996, Berlese extraction from White cedar/Balsam fir forest, 2 ɗ 2 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 13.ix. 1996, Berlese extraction from White cedar/Balsam fir forest, 1 ɗ 4 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 31.vii.–07.viii. 1994, Malaise/flight interception trap (pan) in mixed forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Abitibi­Ouest: Duparquet Lake [48 ° 30 ’N, 79 ° 13 ’W] 25.xii –08.i. 1995, Winter pitfall in mixed forest, 1 ɗ, P. Paquin & N. Dupérré ( CPAD); Baie­James (Jamésie): 87 km N LaSarre [49 ° 32 ’N, 79 ° 20 ’W] 04.viii. 1997, Berlese extraction from old growth Black spruce forest, 3 ɗ 2 Ψ, P. Paquin & N. Dupérré ( CPAD); Baie­James (Jamésie): 122 km NNE LaSarre [49 ° 48 ’N, 78 ° 54 ’W] 06.– 15.vi. 1997, Malaise/flight interception trap (pan) in regenerating Black spruce forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Baie­James (Jamésie): 122 km NNE LaSarre [49 ° 48 ’N, 78 ° 54 ’W] 09.ix. 2002, Berlese extraction from regenerating Black spruce forest, 1 Ψ, P. Paquin & N. Dupérré ( CPAD); Baie­James (Jamésie): 119 km N LaSarre [49 ° 49 ’N, 79 °01’W] 04.vii. 1997, Berlese extraction from mature Black spruce forest, 5 Ψ, P. Paquin & N. Dupérré ( CPAD); Baie­James (Jamésie): 119 km N LaSarre [49 ° 49 ’N, 79 °01’W] 09.ix. 1997, Berlese extraction from mature Black spruce forest, 2 Ψ, P. Paquin & N. Dupérré ( CPAD).

Diagnosis.— Males of Eridantes utibilis   are characterised by a large, curved embolus (E) with a bent tip ( Fig. 25 View FIGURES 25 – 32. 25 – 28 ), the shape of the embolic division (arrow, Fig. 25 View FIGURES 25 – 32. 25 – 28 ) and the finger­like palpal tibial apophysis (PTA) ( Fig. 27 View FIGURES 25 – 32. 25 – 28 ). Females are recognised by the presence of a pale median triangular region (arrow) and the rounded spermathecae (S) flanked on each side ( Fig. 28 View FIGURES 25 – 32. 25 – 28 ).

Distribution.— Known from Québec (present records) and Nova Scotia to Wisconsin and New York (see Buckle et al. 2001).

Remark.— The numerous records from the boreal forest of Québec suggest that it may be locally common in conifer forests, especially among mosses and litter. Interestingly, most collections were done with Berlese extraction of litter. Other trapping methods in the same location were not as productive.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

Genus

Eridantes