Mysmenopsis cube, Dupérré & Tapia, 2020

Dupérré, Nadine & Tapia, Elicio, 2020, Megadiverse Ecuador: a review of Mysmenopsis (Araneae, Mysmenidae) of Ecuador, with the description of twenty-one new kleptoparasitic spider species, Zootaxa 4761 (1), pp. 1-81 : 6-9

publication ID

https://doi.org/10.11646/zootaxa.4761.1.1

publication LSID

lsid:zoobank.org:pub:DDBF3F67-D2E0-4176-B19C-D7319E0500D6

DOI

https://doi.org/10.5281/zenodo.3809820

persistent identifier

https://treatment.plazi.org/id/9A2087C1-FFD1-9577-3BAF-FC9C544CFD70

treatment provided by

Plazi

scientific name

Mysmenopsis cube
status

new species

Mysmenopsis cube new species

Figs 1–10 View FIGURES 1–5 View FIGURES 6–10 , map 1 (yellow circle).

Material examined. Male holotype and female allotype from Ecuador, Esmeraldas Province, Laguna de Cube (0.394396 -79.64690) 327m, 27 Dec. 2016, in Linothele tsachilas web, E.E. Tapia, A.A. Tapia ( QCAZ) GoogleMaps . Paratypes 3♂ 2♀, same data GoogleMaps .

Additional material examined. Ecuador: Santo Domingo de los Tsáchilas Province: 4.2km de Nuevo Israel (-00.0250260 -79.395262) 280m, 19 Mar. 2016, 2♂ 2♀, in Linothele tsachilas web, E. Tapia ( DTC) GoogleMaps .

Etymology. The specific name is a noun in apposition taken from the type locality, Laguna de Cube.

Diagnosis. Males are differentiated from most species by their elongated palpal tibial cusps and long thin, transparent embolic apophysis ( Figs 6, 8 View FIGURES 6–10 ); from M. otokiki n. sp. by the presence of seven longs cups ( Fig. 6 View FIGURES 6–10 ) while M. otokiki has two small cusps ( Fig. 26 View FIGURES 26–30 ). Female most resembles M. cienaga and M. wygodzinskyi , but can be distinguished by the femur I with large tubercle ( Fig. 5 View FIGURES 1–5 ), absent in M. cienaga ( Baert 1990) ; from M. wygodzinskyi by the absence of spines on metatarsus I ( Fig. 5 View FIGURES 1–5 ) present in M. wygodzinskyi ( Platnick & Shadab, 1978; fig. 68).

Description. Male (holotype): Total length: 1.7; carapace length: 0.81; carapace width: 0.65; abdomen length: 0.89. Cephalothorax: carapace dark brown, pear-shaped; suffused black along pars cephalica and radiating lines ( Fig. 1 View FIGURES 1–5 ). Sternum dark brown suffused with black; covered with long setae. Clypeus dark brown; low (3x AME). Chelicerae brown suffused with black; promargin with three teeth; retromargin not observed. Eyes: eight, rounded, all approximately equal size; ocular region on protuberance; AME separated by their radius, AME-LE touching; ALE-PLE contiguous, LE-PME separated by their diameter; PME separated by their diameter. Abdomen: rounded, dark grey with white patches in a circular pattern anteriorly ( Fig. 1 View FIGURES 1–5 ) followed by longitudinal zigzag of white patches ( Fig. 2 View FIGURES 1–5 ). Legs: femora I-II dark brown; femora III-IV light orange-brown basally and dark brown apically; tibiae and metatarsi I-IV light orange-brown with dark band apically, tarsi light orange; femur and tibia I enlarged, metatarsus I straight. Legs spination: patellae I-IV with one macroseta; tibia I with two prolateral clasping spurs and three macrosetae; metatarsus I row of four macrosetae prolatero-ventrally and two clasping spurs apically (small one hidden behind, not visible on image) ( Fig. 4 View FIGURES 1–5 ); tibiae I-IV with one macroseta dorso-proximally; tibia II with four macrosetae ventrally. Total length leg I: 2.57 (0.87/0.25/0.69/0.4/0.36). Genitalia: palpal tibia globular; retrolateral ledge large and rectangular bearing four elongated cusps, ventral ledge protruding with three cusps; two retrolateral trichobothria ( Fig. 6 View FIGURES 6–10 ). Cymbium apically rounded, slightly excavated; paracymbium large and rectangular prolatero-dorsally ( Fig. 7 View FIGURES 6–10 ). Tegulum pear-shaped ( Fig. 6 View FIGURES 6–10 ). Embolus short, spine-like, with wide triangular base, embolic apophysis semi-transparent, long and pointed ( Figs 6, 8 View FIGURES 6–10 ).

Female (allotype): Total length: 2.09; carapace length: 0.91; carapace width: 0.76; abdomen length: 1.18. Cephalothorax ( Fig. 1 View FIGURES 1–5 ), chelicerae and sternum: as in male. Clypeus dark brown; low (3x AME). Eyes: eight, rounded, all approximately of equal size; ocular region on lower protuberance; AME separated by their radius, AME-LE touching; ALE-PLE contiguous, LE-PME separated by their diameter; PME separated by almost their diameter. Abdomen: as in male ( Figs 1, 3 View FIGURES 1–5 ). Legs: coloration as in male; femur I enlarged with large, sub-apical tubercle ( Fig. 5 View FIGURES 1–5 ). Legs spination: patellae I-IV with one macroseta; tibiae I-IV with one macroseta dorso-proximally; tibiae I-II with four to five macrosetae ventrally. Total length leg I: 2.96 (0.92/0.28/0.75/0.57/0.44). Genitalia: epigynum protruding, anterior epigynal margin sinuous, posterior epigynal margin rounded ( Fig. 9 View FIGURES 6–10 ). Dorsal epigynal plate with straight anterior margin ( Fig. 10 View FIGURES 6–10 ). Internal genitalia (paratype): spermathecae large and rounded; copulatory ducts not observed; fertilization ducts oblique, well sclerotized basally, curved apically ( Fig. 10 View FIGURES 6–10 ).

Distribution. Ecuador, Esmeraldas and Santo Domingo de los Tsáchilas Provinces.

Natural history. Specimens were collected in Linothele tsachilas webs at 280–350m, the species inhabit the littoral region of Ecuador and were found in a seasonal evergreen lowland forest of the Ecuadorian Chocó (BeTc01) ( Josse, Morales & Cornejo, 2013).

QCAZ

Museo de Zoologia, Pontificia Universidad Catolica del Ecuador

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Mysmenidae

Genus

Mysmenopsis