Megadiverse Ecuador: a review of Mysmenopsis (Araneae, Mysmenidae) of Ecuador, with the description of twenty-one new kleptoparasitic spider species
Author
Dupérré, Nadine
Author
Tapia, Elicio
text
Zootaxa
2020
2020-04-07
4761
1
1
81
journal article
10.11646/zootaxa.4761.1.1
d7359d0a-1682-4d3a-933b-a5a0ccd5f57b
1175-5326
3743503
DDBF3F67-D2E0-4176-B19C-D7319E0500D6
Mysmenopsis guanza
new species
Figs 129–138
, map 2 (green rectangle).
Material examined.
Male
holotype
and
female
allotype
from
Ecuador
,
Zamora-Chinchipe Province
,
Tepuy Guanza
(
-04.14633
-78.67509
)
1527m
,
5 March 2016
,
E. Tapia
(
QCAZ
)
.
Paratypes
:
1♂
3♀
same data (
QCAZ
,
ZMH-
A0001562
,
ZMH-A0001883
)
.
Additional material examined.
Ecuador
:
Zamora-Chinchipe Province
:
Tepuy Guanza
(
-04.14633
-78.67509
)
1527m
,
5♀
,
1 juv.
,
5 March 2016
,
E. Tapia
(
DTC
,
ZMH-A0001561
,
ZMH-A0001884
)
.
Etymology
. The specific name is a noun in apposition taken from the
type
locality, Tepuy Guanza.
Diagnosis
. Males are differentiated from all species by their long embolus, wide basally, tapering apically and curving prolaterally (
Figs 134–136
). Females can be differentiated from most species by the absence of a tubercle on femur I (
Fig. 133
), and the presence of two macrosetae (
Fig. 133
, arrows); from
M. archeri
by their large oval spermathecae (
Fig. 138
), spermathecae smaller and triangular in the latter species (
Platnick & Shadab 1978
, fig. 53).
Description.
Male (
holotype
)
: Total length: 1.5; carapace length: 0.73; carapace width: 0.68; abdomen length: 0.77. Cephalothorax: carapace dark brown, pear-shaped; suffused black along pars cephalica and radiating lines (
Fig. 129
). Sternum dark brown; covered with long setae. Clypeus dark brown; high (5x AME). Chelicerae dark 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 brownish-grey with six white spots anteriorly in circular pattern (
Fig. 129
), followed by C-shaped white patches and six white, smaller spots dorsally (
Fig. 130
). Legs: femora I-II dark brown; femora III-IV orange-brown with darker bands medially and apically; tibiae and metatarsi I-IV light orange-brown with dark band apically, tarsi light orange; femur and tibia I slightly enlarged, metatarsus I not curved. Legs spination: patellae I-IV with one macroseta; tibia I with one prolateral clasping spur; metatarsus I without macrosetae prolatero-ventrally and with one clasping spur apically (
Fig. 132
); femur I with one macroseta prolaterally; tibia I with five macrosetae retrolaterally, tibia I-IV with one macroseta dorso-proximally; tibia II with three macrosetae ventrally. Total length leg I: 2.66 (0.84/0.29/0.69/0.45 /0.39). Genitalia: palpal tibia globular; retrolateral and ventral ledge without projection or cusps; two retrolateral trichobothria (
Fig. 134
). Cymbium short, apically truncated; paracymbium hook-shaped (
Fig. 135
). Tegulum excavated (
Fig. 134
). Embolus relatively long, twisted, strongly curved, embolic apophysis large and curved not visible in retrolateral view (
Figs 134, 136
).
Female (
allotype
)
: Total length: 1.67; carapace length: 0.82; carapace width: 0.69; abdomen length: 0.85. Cephalothorax (
Fig. 129
), 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 diameter, AME-LE touching; ALE-PLE contiguous, LE-PME separated by their diameter; PME separated by their diameter. Abdomen: as in male (
Figs 129, 131
). Legs: coloration as in male; femur I enlarged without tubercle (
Fig. 133
). Legs spination: femur I with two macrosetae prolaterally (
Fig. 133
, arrows); patellae I-IV with one macroseta; tibiae I-IV with one macroseta dorso-proximally; tibiae I-II with three macrosetae ventrally. Total length leg I: 2.51 (0.78/0.27/0.6 /0.46/0.4). Genitalia: epigynum rather flat, anterior epigynal margin not well delimited, posterior epigynal margin pointed (
Fig. 137
). Dorsal epigynal plate with curved, well sclerotized anterior margin (
Fig. 138
). Internal genitalia (
paratype
): spermathecae large and oval; copulatory ducts long, C-shaped; fertilization ducts wide, looping, semitransparent (
Fig. 138
).
Distribution.
Only known from the
type
locality in
Zamora-Chinchipe Province
.
Natural history.
Specimens were collected in
Linothele
sp. web at
1527m
in a low evergreen mountain forest of the Cordillera del Condor-Kutuku (BsBa03) (
Morales, Chinchero & Medina-Torres, 2013
). A female
Faiditus
sp. was also collected with the
type
material.
M. guanza
n. sp.
lives in sympatry with
M. baerti
n. sp.
and
M. tepuy
n. sp.