Linothele uniformis, Drolshagen & Bäckstam, 2021

Drolshagen, Bastian & Bäckstam, Christian M., 2021, A taxonomic review of the mygalomorph spider genus Linothele Karsch, 1879 (Araneae, Dipluridae), Zoosystema 43 (10), pp. 163-196 : 186

Linothele uniformis n. sp.

( Fig. 16 )

urn:lsid:zoobank.org:act:8016A2A6-BA64-4AC3-99F1-DA6E892F7D87

TYPE MATERIAL. — Holotype. Peru • ♀; Cuzco, road up to MachuPicchu ruins; in forest; 2100 m a.s.l.; 20.II.1965; Herbert W. Levi leg.; MCZ-75998 .

ETYMOLOGY. — The specific epithet is a Latin adjective, meaning ‘uniform’ and refers to the overall homogenous colouration of the opisthosoma; the gender is feminine.

TYPE LOCALITY. — Machu-Picchu, Peru.

DISTRIBUTION. — Only known from the type locality.

DIAGNOSIS. — The female of Linothele uniformis n. sp. can be distinguished from those of most other species of Linothele by its undivided scopula. It resembles females of L. fallax , but differs from them by the absence of patterns on the opisthosoma, a significantly lower number of maxillary cuspules ( Fig. 16A ) and its spermatheca stalks not bearing a single retrolateral lobe ( Fig. 16D ).

DESCRIPTION

Male

Unknown.

Female (holotype)

CL = 9.2. CT = 12. MC = 7-13. Colouration in alcohol: Carapace, chelicerae, sternum (3.9), pedipalps and legs reddish brown, maculae absent; opisthosoma (9.7) uniformly greyish. Clypeus: narrow, see Figure 16B . Sternum, labium and maxillae: see Figure 16A . Palp measurements: 15.8 (5.0, 3.3, 4.1, 3.4). Leg measurements: I: 28.6 (7.7, 3.9, 6.2, 6.0, 4.8); II: 27.2 (7.4, 3.8, 5.2, 6.0, 4.8); III: 26.2 (6.9, 3.2, 5.5, 6.3, 4.3); IV: 36.0 (8.7, 4.3, 7.6, 9.5, 5.9). Leg formula: 4123. Scopula undivided. Preening-combs absent. Leg tarsi pseudo-segmented. Spinnerets: see Figure 16C ; PMS: 2.3, separated by less than length of segment (1.3); PLS: 9.5 (3.1, 2.9, 3.5), apical segments rigid; see Figure 16C . Spermatheca: consisting of two stalks, bearing a retrolateral lobe in 1:3A and a midventral vesicle, see Figure 16D.

NATURAL HISTORY

Unknown.

Figures

FIG. 16. — Linothele uniformis n. sp. female (MCZ-75998): A, maxillae, labium and sternum, ventral view; B, eye tubercle, dorsal view; C, spinnerets,ventral view; D, spermatheca, dorsal view. Scale bars: 1 mm.