Linothele spinosa, 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 : 184-186

publication ID

https://doi.org/ 10.5252/zoosystema2021v43a10

publication LSID

urn:lsid:zoobank.org:pub:2763DA07-4D8F-4CA2-BB63-E5BC26470296

DOI

https://doi.org/10.5281/zenodo.4721115

persistent identifier

https://treatment.plazi.org/id/B9735F95-4D4F-46E2-9CDE-7F9CF1DAA503

taxon LSID

lsid:zoobank.org:act:B9735F95-4D4F-46E2-9CDE-7F9CF1DAA503

treatment provided by

Felipe

scientific name

Linothele spinosa
status

sp. nov.

Linothele spinosa View in CoL n. sp.

( Figs 15 View FIG ; 17 View FIG K-M; 19 View FIG F)

urn:lsid:zoobank.org:act:B9735F95-4D4F-46E2-9CDE-7F9CF1DAA503

TYPE MATERIAL. — Holotype. Peru • ♂ F1; near Iquitos ; 2007; H. W. Auer leg.; NHRS-KASI000000036 .

Paratypes. Peru • 1 ♀ *, 2 ♀ F1; same data as for holotype; NHRS-KASI000000037 .

ETYMOLOGY. — The specific epithet is a Latin adjective, meaning ‘spined’ and refers to the presence of preening-combs on ventrodistal posterior metatarsi, otherwise only observed in L. macrothelifera ; the gender is feminine.

TYPE LOCALITY. — Iquitos, Peru.

DISTRIBUTION. — Only known from the type locality.

DIAGNOSIS. — The male of L. spinosa n. sp. can be distinguished from those of other species of Linothele by the MP [(IML*100)/ MAD = 416], being low and domed ( Fig. 15C, D View FIG ), as well as their proportionally long [(PL*100)/BD = 385] embolus bearing no keels ( Fig. 15A, B View FIG ). Females differ from those of most other species of Linothele by the presence of preening-combs and can further be distinguished from those of L. macrothelifera by their longer spermathecae stalks bearing an elongated vesicle ( Fig. 15G View FIG ) and their distribution.

DESCRIPTION

Male (holotype)

CL = 8.6. CT = 12. MC = 50-51. Colouration in alcohol: Prosoma, chelicerae, legs and pedipalps pale, yellow; opisthosoma (length: 12.04) with distinct pattern, mid-dorsally 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. 17K, L View FIG ); maculae absent. Clypeus narrow. Palp measurements: 15.3 (5.6, 3.1, 4.8, 1.8). Leg measurements: I: 39.8 (9.7, 5.1, 8.8, 8.6, 7.6); II: 36.9 (9.0, 4.3, 7.9, 8.5, 7.2); III: 35.1 (8.4, 3.8, 7.2, 9.7, 6.0); IV: 43.9 (10.5, 4.2, 8.9, 12.9, 7.4). Leg formula 4123. Leg tarsi pseudo-segmented. Spinnerets: PMS: 1.43; PLS: apical segment broken off. Palpal organ: [(PL*100)/BD = 385], see Figure 15A, B View FIG . Megaspine and MP: [(IML*100)/MAD = 416], see Figure 15C, D View FIG .

Female

Colouration as for male, but prosoma, chelicerae, legs, and pedipalps light brown and dorsal pattern on opisthosoma more distinct ( Fig. 17M View FIG ). Colouration alive ( Fig. 19F View FIG ): Carapace covered with golden setae. Clypeus: narrow, see Figure 15H View FIG . Sternum, labium and maxillae: see Figure 15F View FIG . Leg formula: 4123. Scopula divided. Preening-combs present. Leg tarsi pseudo-segmented. Spinnerets: apical segment of the PLS rigid, see Figure 15E View FIG . Spermathecae: consisting of two apically elongated stalks with thin bases, bearing several short and an elongated vesicle at 1:2–1:3B, see Figure 15G View FIG .

Varibility

CL = 8.3-10.8. CT = 11-14. MC = 40-72. Palp measurements: 15.0-20.0 (5.0-6.3, 2.7-3.6, 3.7-5.2, 3.6-4.9). Leg measurements: I: 34.0-36.1 (8.9-9.6, 5.1-5.3, 8.0-8.5, 7.0-7.6, 5.0- 5.1); II: 26.0-34.1 (7.0-9.1, 3.8-5.2, 5.7-7.7, 5.5-7.1, 4.0-5.0); III: 24.5-32.9 (6.2-8.5, 3.0-4.4, 5.3-6.8, 6.4-8.4, 3.6-4.8); IV: 37.9-42.1 (8.0-10.5, 4.5-9.4, 7.0-9.2, 9.1-11.6, 4.4-6.0).

REMARKS

The male holotype has been preserved immediately after the moult to adulthood which might have caused its very light colouration.

NATURAL HISTORY

Unknown.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Dipluridae

Genus

Linothele

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