Texella martensi, Ubick, 2021

Ubick, Darrell, 2021, A new cavernicolous harvestman, Texella martensi n. sp., from the Mojave Desert California (Opiliones: Laniatores: Phalangodidae), Zootaxa 4984 (1), pp. 114-118: 115-116

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Texella martensi

new species

Texella martensi   , new species

Figs 1–3 View FIGURES 1 View FIGURES 2 View FIGURE 3

Type material. Holotype male: USA: California: Inyo County, Death Valley National Park, Titus Canyon Cave , 36°50’58.16”N, 117°3’43.85”W [ca 1230 m], G.O. Graening leg. 20.1.2012 (CASENT 9081592). GoogleMaps  

Etymology. This species is named in honor of Jochen Martens, in recognition to his life-long and outstanding contribution to Opiliones   taxonomy; name in the genitive case.

Diagnosis. The male of Texella martensi   n. sp. differs from those of other species in the kokoweef   species group in having relatively longer appendages and the shortest spur on trochanter IV.

Description. Male (holotype). Total body length 1.50. Dorsal scute length 1.10, width 1.10. Eyemound length 0.24, width 0.25. Genital operculum length 0.25, width 0.22. Postopercular process absent. Leg II length 4.40, leg II / scute length 4.0. Trochanter IV segment length 0.22, spur length 0.14.

Color: body light orange-colored, lacking dark markings; appendages whitish, basal segments slightly darker.

Body with uniform covering of small tubercles, with larger ones scattered on eyemound, dorsally and laterally on scute, and largest ones on posterior margins of tergites ( Fig. 1B View FIGURES 1 ). Dorsal scute with 5 pairs of anterior tubercles in two rows, one pair slightly larger than others ( Fig. 1D View FIGURES 1 ). Eyemound a rounded cone, eyes with well-developed retina and cornea ( Fig. 1D View FIGURES 1 ). Genitalia not examined, but prongs of ventral plate of penis visible and slightly protruding from genital operculum ( Fig. 1C View FIGURES 1 ).

Palpal megaspines: trochanter without; femur with 3 ventrobasal and 1 mesodistal; patella with 1 ectal and 2 mesal; tibia with 2 ectal and 3 mesal; tarsus with 2 ectal and 2 mesal ( Fig. 1D View FIGURES 1 ). Trochanter IV with slender spur, shorter than trochanter. Tarsal count: 3-5-4-5.

Female not known.

Note. It was not possible to expand the penis without damaging the single available specimen.

Distribution. Known only from Titus Canyon Cave in California.