Antrodiaetus montanus (Chamberlin & Ivie)

Cokendolpher, James C., Peck, Robert W. & Niwa, Christine G., 2005, Mygalomorph spiders from southwestern Oregon, USA, with descriptions of four new species, Zootaxa 1058, pp. 1-34: 29

publication ID

10.5281/zenodo.170130

publication LSID

lsid:zoobank.org:pub:AFAA0F3F-B38B-4790-ACDB-6424429EA725

persistent identifier

http://treatment.plazi.org/id/F305878B-F75F-FFE0-553E-FCA8FD8DF89A

treatment provided by

Plazi

scientific name

Antrodiaetus montanus (Chamberlin & Ivie)
status

 

Antrodiaetus montanus (Chamberlin & Ivie) 

Figs. 3View FIGURE 3, 21View FIGURES 16 – 21, 30View FIGURES 22 – 33

Antrodiaetus montanus: Coyle 1971: 359  –362, figs. 140, 150, 162, 171, 180, 213 – 217, 253–255, 295 – 298; Platnick 2005 (see for complete synonymy).

Material Examined. Washington: near Richland, Benton County, 2 males (JCC).

Diagnosis. The presence of setae on the upper ectal surface of the chelicera ( Fig. 21View FIGURES 16 – 21) will separate this species from all others in the genus except for A. hageni (Chamberlin)  . From this latter species, the males differ by not having the metatarsus I swollen in the middle. In southwestern Oregon, it is the only member of the genus to have a procurved male genital plate ( Fig. 30View FIGURES 22 – 33).

Abbreviated Description. All three dorsal opisthosomal sclerotized patches separate; male genital plate with sclerotized parts undivided, thin, and procurved; chelicera without distodorsal projection, with setae on upper ectal surface; with prolateral brush of macrosetae on tibia I, 48–93 % of macrosetae ensiform; tibia I with 6–23 (2–13 ensiform) macrosetae retrolaterally, without large heavy macrosetae ventrally; tibia and metatarsus I not swollen in lateral view; metatarsus I weakly sinuous, with one large retrolateral distal macroseta (seta A) ventrally; tip of palpal outer conductor sclerite not closely appressed to inner conductor sclerite; palpal tibia 2.54–2.78 times longer than wide; males active above ground in early August to early November.

Distribution. Great Basin region from Utah and Nevada north to Oregon, Idaho, and Washington ( Fig. 3View FIGURE 3; Coyle 1971: map 2).

Comments. The description is based upon data from Coyle (1971) as well as the examination of two males.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Antrodiaetidae

Genus

Antrodiaetus

Loc

Antrodiaetus montanus (Chamberlin & Ivie)

Cokendolpher, James C., Peck, Robert W. & Niwa, Christine G. 2005

2005
Loc

Antrodiaetus montanus:

Coyle 1971: 359