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.