Mysmenopsis penai Platnick & Shadab, 1978

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: 64-69

publication ID

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

publication LSID

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

DOI

http://doi.org/10.5281/zenodo.3809836

persistent identifier

http://treatment.plazi.org/id/9A2087C1-FFEB-953B-3BAF-FACD56B6FC74

treatment provided by

Plazi

scientific name

Mysmenopsis penai Platnick & Shadab, 1978
status

 

Mysmenopsis penai Platnick & Shadab, 1978  

Fig. 190–199 View FIGURES 190–194 View FIGURES 195–199 , map 3 (black diamond).

Mysmenopsis penai Platnick & Shadab, 1978 a: 16   , f. 46-48 (Description male); Lopardo & Hormiga, 2015: 781, f. 60A-H, 61A- D, 62A-H, 131A, 140L (male and female).

Type material. Male holotype from Coca, Rio Napo , Ecuador (May, 1965; L. Peña) ( MCZ). Not examined   .

Material examined. Ecuador: Napo Province: Misahualli, Via Arajuno (-01.090117 -77.543352) 458m, 19 May. 2019, 1♂ 1♀, in Lycosidae   sp. web, E.E. Tapia ( QCAZ) GoogleMaps   .

Diagnosis. Males are distinguished from all species by the embolus accompanied by a large elongated, curved apophysis ( Fig. 195 View FIGURES 195–199 ), absent in M. yupanqui   ( Baert 1990, fig. 10) and three large macrosetae on the retrolateral ledge of the palpal tibia ( Figs 195 View FIGURES 195–199 ). Females are differentiated from most species by the absence of tubercle on femur I ( Fig. 194 View FIGURES 190–194 ) and the posterior margin of the epigynum deeply excavated ( Figs 198 View FIGURES 195–199 ); from M. yupanqui   by the triangular base of the spermathecae ( Fig. 199 View FIGURES 195–199 ), rectangular in the latter species ( Baert 1990, fig. 11).

Description. Male: See Platnick & Shadab 1978 (figs 180, 181, 183, 185–187). Female: Total length: 1.26; carapace length: 0.5; carapace width: 0.48; abdomen length: 0.76. Cephalothorax: carapace brown, pear-shaped; suffused black along pars cephalica and radiating lines ( Fig. 190 View FIGURES 190–194 ). Sternum dark brown; covered with long setae. Clypeus dark; low (2x AME). Chelicerae dark brown suffused black; promargin with three teeth; retromargin not observed. Eyes: Eight, rounded, all approximately of equal size; ocular region on very low protuberance; AME separated by their radius, AME-LE touching; ALE-PLE contiguous, LE-PME separated by their radius; PME separated by their diameter. Abdomen: oval, dark gray with white patches in hourglass pattern ( Figs 190, 191 View FIGURES 190–194 ). Legs: femur I yellow-brown, femora II-IV light yellow with basal, medial and apical dark band; tibia I yellow suffused with brown ventrally; tibiae and metatarsi II-IV light yellow with medial and apical dark band, tarsi light yellow with medial dark band; femur I not enlarged without tubercle ( Fig. 194 View FIGURES 190–194 ). Legs spination: patellae I-IV with one macroseta; tibiae I-IV with one macroseta dorso-proximally. Total length leg I: 1.87 (0.6/0.17/0.42/0.36/0.32). Genitalia: epigynum protruding, anterior epigynal margin not well delimited, posterior epigynal margin excavated medially ( Fig. 198 View FIGURES 195–199 ). Dorsal epigynal plate anterior margin with large sclerotized plate ( Fig. 199 View FIGURES 195–199 ). Internal genitalia with large irregularly shaped (triangular) spermathecae; copulatory ducts not observed; fertilization ducts large well sclerotized basally, curving apically and semi-transparent ( Fig. 199 View FIGURES 195–199 ).

Distribution. Ecuador, Napo and Orellana Provinces.

Natural history. The male and female M. penai   were found in Aglaoctenus   sp. ( Lycosidae   ) web in the Napo region where they live in sympatry with M. athahualpa   and M. amazonica   n. sp. Specimens of a Theridiiae ( Faiditus   sp.) and a Mimetidae   ( Ero   sp.) were also collected in the web. This species inhabits the Amazonian ecoregion and was found in an evergreen foothill forest on the Northeastern Andes (BsPn03) ( Guevera, Mogollón, Cerón & Josse, 2013).

MCZ

USA, Massachusetts, Cambridge, Harvard University, Museum of Comparative Zoology

MCZ

Museum of Comparative Zoology

QCAZ

Museo de Zoologia, Pontificia Universidad Catolica del Ecuador

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Mysmenidae

Genus

Mysmenopsis

Loc

Mysmenopsis penai Platnick & Shadab, 1978

Dupérré, Nadine & Tapia, Elicio 2020
2020
Loc

Mysmenopsis penai

Platnick & Shadab 1978: 16
1978