Rothaeina mackinleyi Bennett & Copley & Copley 2023, spec. nov.
Creators: name: Bennett, Robb
name: Copley, Claudia
name: Copley, Darren
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Cybaeidae
Rothaeina
Rothaeina mackinleyi

description: Rothaeina mackinleyi Bennett spec. nov.
Figs 45–47, 54–55, 63, 73–74, 85
Type material. U.S.A.: Oregon: Holotype male. Josephine County, Grave Creek,Oregon,9.ix.1935, R.V.Chamberlin & W. Ivie (AMNH). Paratypes. U.S.A.: California: Sierra, 1♀, Yuba Pass area, NE of Sierra City, 22.vii.2008, J. Heistand (CAS). Oregon: Coos, 1♀, Charleston, 27.v.1952, V.D. Roth (CAS); 1♀, Charleston, 30.ix.1959, V.D. Roth (CAS); Jackson, 1♁, Beaver Sulphur Forest Camp, nr. Applegate R., 9.x.1964, F. Beer (CAS).
Etymology. The specific epithet is a patronym honouring the late blues guitarist, lyricist, and band leader McKinley “Muddy Waters” Morganfield.
Diagnosis. The male of R. mackinleyi spec. nov. is distinguished by the combination of its short, stubby (length less than 1/2 width of patella) patellar apophysis (Fig. 55); elongate distal component of the retrolateral tibial apophysis (extending blade-like over the base of the cymbium (Fig. 54); and dorsal keel on the proximal arm of the tegular apophysis which is sharply acuminate in ventral view (Fig. 45), somewhat bluntly in retrolateral view (Figs 46, 63), and obscured in ventro-retrolateral view (Fig. 47). Differentiating the male of this species from the males of the other three species with known males (R. jamesi spec. nov., R. petersoni spec. nov., and R. sequoia comb. nov.) is discussed in the diagnosis of R. jamesi spec. nov.
The females of R. mackinleyi spec. nov. and R. jamesi spec. nov. are very similar. Differentiating them from the females of the other species of Rothaeina gen. nov. is discussed in the diagnosis of R. beaudini spec. nov. while differentiating the females of R. mackinleyi spec. nov. and R. jamesi spec. nov. is explained in the diagnosis of the latter species.
Description. As in diagnosis and description of the genus. Additional descriptive characters presented here. Abdomen pale, unpatterned.
Male (n=2). Patellar apophysis (Fig. 55) with three or four small distodorsal peg setae. Medial component of retrolateral tibial apophysis a simple linear ledge (Fig. 54). Distal arm of tegular apophysis elongate, slender (length about three times width); proximal arm elongate with ventral prolaterad uncinate tip (Figs 45–47).
Measurements (n=2). CL 1.88, 2.03; CW 1.60, 1.55; SL 1.04, 1.11; SW 0.95, 1.03. Holotype measurements listed first.
Female (n=3). Epigyne with single, nearly indiscernible, short, linear, transverse atrium medially (as in R. jamesi spec. nov., Fig. 70). Vulva with copulatory ducts (Figs 73–74) distinctly separated; spermathecal ducts (Figs 73–74) convoluted with medial, transverse section of ducts a prominent feature in dorsal view; spermathecal heads dorsal or anterodorsal, near anterior edge of vulva; Bennett’s glands hidden within anterior third of spermathecal ducts.
Measurements (n=2). CL 1.98, 2.18; CW 1.53, 1.63; SL 1.11, 1.13; SW 1.00, 1.04.
Distribution and natural history (Fig. 85). Rothaeina mackinleyi spec. nov. is a rarely encountered species currently recorded from only a small number of localities scattered from the Charleston area of southwestern Oregon, U.S.A., southeast to the Yuba Pass area in the northern Sierra Nevada of California, U.S.A. (most recently in 2008). Males have been collected in early September (holotype) and October.
description: Published as part of Bennett, Robb, Copley, Claudia & Copley, Darren, 2023, Revision of the western Nearctic spider genus Cybaeina including the description of Neocybaeina gen. nov. and Rothaeina gen. nov. (Araneae: Cybaeidae: Cybaeinae), pp. 97-129 in Zootaxa 5318 (1) on pages 120-121, DOI: 10.11646/zootaxa.5318.1.5, http://zenodo.org/record/8158357