Mysmenopsis otokiki, 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 : 12-15

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.3809826

persistent identifier

https://treatment.plazi.org/id/9A2087C1-FFDF-9571-3BAF-FC9D5435FCCC

treatment provided by

Plazi

scientific name

Mysmenopsis otokiki
status

new species

Mysmenopsis otokiki new species

Figs 21–30 View FIGURES 21–25 View FIGURES 26–30 , 222, 223 View FIGURES 222–229 , 233 View FIGURES 230–233 map 1 (blue circle).

Material examined. Male holotype and female allotype from Ecuador, Esmeraldas Province, Alto Tambo, Reserva Otokiki (00.91271 -78.57110) 735m, 5 Oct. 2015, collected in Linothele sp. web, E.E. Tapia, I.G. Tapia ( QCAZ). GoogleMaps Paratypes: 4♂ 7♀, same data ( QCAZ, ZMH-A 0001890).

Additional material examined. Ecuador: Cañar, Manta Real (-02.54863 -79.36391) 235m, 3♂ 6♀, 17 July 2016, in Linothele web, on ground between rocks, E.E. Tapia, N. Dupérré, A.A. Tapia ( DTC, ZMH-A0001891 ) GoogleMaps .

Etymology. The specific name is a noun in apposition taken from the type locality, Reserva Otokiki of the OTONGA Foundation.

Diagnosis. Males most resemble M. viracocha and M. huascar but can be distinguished from both species by the presence of a pointed transparent embolic apophysis ( Fig. 28 View FIGURES 26–30 ), whereas M. viracocha has a large plate-like apophysis ( Baert 1990; fig. 3) and M. huascar has no apophysis ( Baert 1990; fig. 20); from M. cube n. sp., see the diagnosis of the latter species. Females most resemble M. viracocha and M. awa n. sp. but can be distinguished by the presence of an anterior rim on the epigynum ( Fig. 29 View FIGURES 26–30 , arrow), absent in M. awa n. sp. ( Fig. 49 View FIGURES 46–50 ); spermathecae in M. viracocha are rounded with long anteriorly oriented copulatory ducts ( Baert 1990; fig. 4) while M. otokiki n. sp. has small oval spermathecae on a wide base with straight medially directed copulatory ducts ( Fig. 30 View FIGURES 26–30 ).

Description. Male (holotype): Total length: 1.87; carapace length: 0.9; carapace width: 0.75; abdomen length: 0.97. Cephalothorax: carapace dark orange-brown, pear-shaped; suffused with black along pars cephalica and radiating lines ( Fig. 21 View FIGURES 21–25 ). Sternum black; covered with long setae. Clypeus dark orange-brown; low (3x AME). Chelicerae dark orange-brown; 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 semi-circular pattern ( Figs 21, 22 View FIGURES 21–25 ). Legs: femora dark orange-brown; femora III-IV orange-brown with darker orange brown bands basally and apically; tibiae and metatarsi I-IV orange-brown with darker orange brown bands apically, tarsi orange-brown; femur and tibia I enlarged, metatarsus I curved ( Fig. 24 View FIGURES 21–25 ). Legs spination: patellae I-IV with one macroseta; tibia I with two prolateral clasping spurs and two macrosetae; metatarsus I curved, row of six macrosetae prolatero-ventrally and one clasping spur apically ( Fig. 24 View FIGURES 21–25 ); tibiae I-IV with one macroseta dorso-proximally; tibia II with five macrosetae ventrally. Total length leg I: 3.49 (1.11/0.34/1.02/0.48/0.54). Genitalia: palpal tibia elongated globular; retrolateral ledge with small triangular projection without cusps; ventral projection triangular with two cusps; two retrolateral trichobothria ( Fig. 26 View FIGURES 26–30 ). Cymbium apically pointed, paracymbium angular and deeply excavated prolatero-dorsally ( Fig. 27 View FIGURES 26–30 ). Tegulum oval ( Fig. 26 View FIGURES 26–30 ). Embolus short, pointed apically, with elongated transparent lamellar basal apophysis ( Figs 26, 28 View FIGURES 26–30 ).

Female (allotype): Total length: 2.27; carapace length: 1.01; carapace width: 0.81; abdomen length: 1.26. Cephalothorax: dark brown, pear-shaped; suffused with black along pars cephalica and radiating lines ( Fig. 21 View FIGURES 21–25 ). Clypeus dark brown; low (3x AME). Chelicerae and sternum as in male. Eyes: eight, rounded, all approximately of equal size; ocular region on lower protuberance; AME separated by their diameter, AME-LE touching; ALE-PLE contiguous, LE-PME separated by their diameter; PME separated by their diameter. Abdomen: as in male ( Figs 21, 23 View FIGURES 21–25 ). Legs: femora I-III dark brown; femur IV dark brown with light yellow band basally; tibiae and metatarsi I-IV light brown with darker brown bands apically, tarsi orange-brown; femur I enlarged with sub-apical, pointed tubercle ( Fig. 25 View FIGURES 21–25 ). Legs spination: patellae I-IV with one macroseta; tibiae I-IV with one macroseta dorso-proximally; tibia I with nine, tibia II with five macrosetae ventrally; metatarsus I with nine short spines ( Fig. 233 View FIGURES 230–233 , arrow point to the first two spines). Total length leg I: 3.59 (1.12/0.35/0.9/0.7/0.52). Genitalia: epigynum anterior margin with well sclerotized rim ( Fig. 19 View FIGURES 16–20 , arrow), posterior epigynal protruding and rounded ( Fig. 29 View FIGURES 26–30 ). Dorsal epigynal plate short with straight anterior margin ( Fig. 30 View FIGURES 26–30 ). Internal genitalia (paratype): spermathecae small oval on a wide base; copulatory openings situated at margin of dorsal plate ( Fig. 222 View FIGURES 222–229 ); copulatory ducts short, positioned externally; fertilization ducts straight, well sclerotized basally, curved and semi-transparent apically ( Figs 30 View FIGURES 26–30 , 223 View FIGURES 222–229 ).

Distribution. Ecuador, Cañar and Esmeraldas Provinces.

Natural history. Specimens were collected in Linothele webs, the species inhabit the the Andean region of Ecuador from 235– 735m. Specimens were collected in an evergreen foothill forest on the western side of the Andes (BsPn01) ( Guevara & Morales 2013). M. otokiki is found in sympatry with M. choco n. sp. and M. awa n. sp. in Esmeraldas Province at Otokiki Reserve.

QCAZ

Museo de Zoologia, Pontificia Universidad Catolica del Ecuador

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Mysmenidae

Genus

Mysmenopsis