Arcuphantes arcuatulus Chamberlin & Ivie, 1943

Jin, Miao, Ma, Shuangchun & Tu, Lihong, 2018, A review of the Arcuphantes species with the genitalia of arcuatulus - type (Araneae, Linyphiidae), Zootaxa 4425 (3), pp. 498-510: 502

publication ID

https://doi.org/10.11646/zootaxa.4425.3.4

publication LSID

lsid:zoobank.org:pub:038364CA-C0C7-4A56-8C23-7E0AC47F69ED

persistent identifier

http://treatment.plazi.org/id/202FBE5B-092D-8C5D-FF6A-81C2F25DF91A

treatment provided by

Plazi

scientific name

Arcuphantes arcuatulus Chamberlin & Ivie, 1943
status

 

Arcuphantes arcuatulus Chamberlin & Ivie, 1943 

Figs 2A–E View Figure , 3A–C View Figure , 4 View Figure , 7A–B View Figure

Linyphia arcuata Keyserling, 1886: 74  , pl. 13, f. 173 (Df; preoccupied by Thorell, 1856).

Lepthyphantes arcuatus Petrunkevitch, 1911: 244  .

Lepthyphantes arcuatulus Roewer, 1942: 560  (replacement name).

Arcuphantes arcuatus Chamberlin & Ivie, 1943: 21  , f. 37-40 (Tf from Lepthyphantes, Dm  ; specific name is a primary homonym replaced by Roewer); Tu & Hormiga, 2010: 61, f. 2a-f, 9a (f).

Material examined. 1♂, USA: Washington: Arlington , 48°N, 122°W, 9.ix.1935, Chamberlin & Ivie leg. (AMNH-161)  ; 1♀ Washington: 10 miles north of Vancouver , 45°N, 122°W, 10.ix.1935, Chamberlin & Ivie leg. (AMNH-165). 

Diagnosis. The male A. arcuatulus  can be distinguished from A. cruciatus  n. sp., and A. denticulatus  n. sp. by the bifid outer paracymbial arm with a blunt inner apophysis ( Fig. 7B View Figure ), and by the terminal apophysis having the anterior process turning backwards ( Fig. 7A View Figure ). The female can be distinguished by the epigynum in ventral view more slender than that of A. cruciatus  n. sp., the prolonged basal part under the extensible base is almost square, with the parallel lateral margins slightly incurved ( Fig. 3A–C View Figure ).

Description. Male (AMNH-161): Total length 1.94. Carapace 0.78 long, 0.63 wide. Abdomen 1.11 long, 0.53 wide. Female (AMNH-165): Total length 1.26. Carapace 0.57 long, 0.54 wide. Abdomen 0.75 long, 0.49 wide. Legs broken, data on leg lengths absent.

Other somatic and genital characters: see the general description for the Arcuphantes  species with arcuatulus  - type genitalia.

Distribution. USA (Washington).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

Genus

Arcuphantes

Loc

Arcuphantes arcuatulus Chamberlin & Ivie, 1943

Jin, Miao, Ma, Shuangchun & Tu, Lihong 2018

2018
Loc

Linyphia arcuata

: 74

Loc

Arcuphantes arcuatus

: 21 : 61