Cybaeus thermydrinos Bennett, 2009

Bennett, Robb, Copley, Claudia & Copley, Darren, 2021, Cybaeus (Araneae: Cybaeidae): the aspenicolens species group of the Californian clade, Zootaxa 4926 (2), pp. 224-244 : 237-241

Cybaeus thermydrinos Bennett

Figs 29–31 , 33 , 38–40 , 42

Cybaeus thermydrinos Bennett in Copley et al. 2009: 385, figs 61–66. World Spider Catalog 2020.

Type material. Holotype male. U.S.A.: California: Tulare County, 2.5 miles east of California Hot Springs , matured 5 October 1959, W.J. Gertsch & V. D. Roth ( CAS), examined.

Other material examined. Specimens and locality data in Copley et al. (2009).

Diagnosis. Cybaeus thermydrinos is grouped with C. fraxineus spec. nov. in the informal fraxineus subgroup. Distinguishing the aspenicolens and fraxineus subgroups is discussed in the aspenicolens species group diagnosis. Differentiating the male and female of C. thermydrinos from those of C. fraxineus spec. nov. is discussed in the diagnosis of the latter.

Description. See Copley et al. (2009).

Distribution. Southern Tulare County and adjacent northern Kern County, California on the western slopes of the southern Sierra Nevada ( Fig. 42 ).

Figures

FIGURE 42. Distributions of Cybaeus fraxineus spec. nov. (purple circles), C. thermydrinos (white triangles). AZ—Arizona, CA—California, ID—Idaho, OR—Oregon, NV—Nevada, UT—Utah.

FIGURES 29–31. Cybaeus thermydrinos, male from near Johnsondale, California, left palpus. 29 patella and tibia, dorsal; 30 genital bulb, ventral; 31 genital bulb, retrolateral.

FIGURES 32–33. Cybaeus spp, males, left palpus, proximal arm of tegular apophysis (32 C. fraxineus spec. nov. from vicinity of Ash Mountain, California. 33 C. thermydrinos from near Johnsondale, California). Arrows indicate bifurcate tip of proximal arm of tegular apophysis.

FIGURES 34–40. Cybaeus spp, females, copulatory organ (34–36 C. fraxineus spec. nov. from vicinity of Ash Mountain, California. 37 C. fraxineus spec. nov. from Clough Cave, California. 38–39 C. thermydrinos from near Johnsondale, California. 40 C. thermydrinos from California Hot Springs, California). 34, 38 epigynum, ventral; 35, 39–40 vulva, ventral; 36–37 vulva, dorsal. CD—copulatory duct, ER—epigynal ridge or hood.