Linothele septentrionalis, 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 : 182

Linothele septentrionalis n. sp.

( Figs 13 ; 17I, J )

urn:lsid:zoobank.org:act:514DF6CE-3DC9-4416-B71B-1C60C698EBEB

TYPE MATERIAL. — Holotype. Bahamas • ♀; Nathan Banks leg.; MCZ 76012.

ETYMOLOGY. — The specific epithet is a Latin adjective, meaning ‘northern’ and refers to the most northern locality in Linothele zoogeography; the gender is feminine.

TYPE LOCALITY. — Bahamas.

DISTRIBUTION. — Only known from the type locality.

DIAGNOSIS. — The female of Linothele septentrionalis n. sp. differs from those of all other Linothele by the combined presence of maculae ( Fig. 13B ), presence of a pattern on the sternum and absence of maxillary cuspules ( Fig. 13A ).

DESCRIPTION

Male

Unknown.

Female (holotype)

CL = 3.9. CT = 11. MC = 0. Colouration in alcohol: Prosoma, chelicerae, legs and pedipalps pale, yellow; sternum (length: 2.0) dark, with bright longitudinal pattern ( Fig. 13A ); opisthosoma with distinct mid-dorsal pattern, consisting of quadrate spots anteriorly, which become more rectangular posteriorly, or can be interconnected, forming longitudinal lines, laterally with several spots; ventrally with longitudinal lines and spots ( Fig. 17I, J ); maculae present, see Figure 13B . Clypeus: narrow. Sternum, labium and maxillae: see Figure 13A . Palp measurements: 7.6 (2.5,1.4,1.7,2.0). Leg measurements: I: 13.0 (3.3, 1.5, 3.0, 2.9, 2.3); II: 10.8 (2.9, 1.5, 2.0, 2.6, 1.8); III: 10.6 (2.8, 1.3, 2.1, 2.4, 2.0); IV: 14.9 (2.4, 3.8, 3.2, 1.5, 4.0). Leg formula: 4123. Scopula divided. Preening-combs absent. Leg tarsi integral. Spinnerets: PMS: 1.3, separated by less than length of segment (0.7); PLS: 5.9 (1.6, 1.9, 2.4), apical segments rigid. Spermatheca: consisting of two stalks with basal lobes, see Figure 13C.

NATURAL HISTORY

Unknown.

Figures

FIG. 13. — Linothele septentrionalis n. sp: A-C, L. septentrionalis n. sp. female holotype (MCZ-76012); A, maxilla, labium and sternum, ventral view; B, left palp, retrolateral view; C, spermatheca, dorsal view. Scale bars: A, B, 1 mm; C, 0.5 mm.

FIG. 17. — Patterns on opisthosoma in Linothele Karsch, 1879: A-E, L. curvitarsis Karsch, 1879; F-H, L. macrothelifera Strand, 1908; I, J, L. septentrionalis n. sp.; K-M, L. spinosa n. sp.; A, L. curvitarsis indet. holotype (ZMB Arach-458), dorsal view; B, C, L. curvitarsis male (NHRS-KASI 000000032); B, dorsal view; C, ventral view; D, Diplura soricina Simon, 1889 female (MNHN (339)), dorsal view; E, Diplura soricina male (MNHN (339)), dorsal view; F, L. macrothelifera imm. male (MCZ-76020), dorsal view; G, H, L. macrothelifera undet. (MCZ-76021); G, dorsal view; H, ventral view; I, J, L. septentrionalis n. sp. female holotype (MCZ- 76012); I, dorsal view; J, ventral view; K-M, L. spinosa n. sp. male holotype (NHRS-KASI 000000036); K, dorsal view; L, ventral view; M, L. spinosa n. sp. female paratype (NHRS-KASI 000000037), dorsal view. Not to scale.