Theridiosoma ankas, Dupérré & Tapia, 2017

Dupérré, Nadine & Tapia, Elicio, 2017, On some minuscule spiders (Araneae: Theridiosomatidae, Symphytognathidae) from the Chocó region of Ecuador with the description of ten new species, Zootaxa 4341 (3), pp. 375-399 : 385

Theridiosoma ankas new species

FIgS 15–17 , 43

Type material. MAlE HOlOtypE frOM EcUADOr, COtOpAxI PrOvINcE, OTONGA BIOlOgIcAl RESErvE (-00.42180 - 79.01325), 24–30.v.2014, 2,225M, NIgHt cOllEctINg, clOUD fOrESt, E. TApIA, C. TApIA, N. DUpérré ( QCAZ). MAlE pArAtypE frOM COtOpAxI PrOvINcE, OTONGA BIOlOgIcAl RESErvE (-00.42261 -79.5107), 24–30.v.2014, 2,225M, HAND cOllEctINg, clOUD fOrESt, E. TApIA, C. TApIA, N. DUpérré ( ZMH).

Etymology. THE SpEcIfIc NAME IS A NOUN IN AppOSItION tAkEN frOM tHE KIcHWA lANgUAgE WOrD fOr “blUE” IN rEfErENcE tO tHE AbDOMEN cOlOUrAtION.

Diagnosis. MAlES ArE DIStINgUISHED frOM All SpEcIES by tHE cOMbINAtION Of tHE fOllOWINg cHArActErS: UNIfOrMly tUrqUOISE cOlOUrAtION Of tHEIr AbDOMEN ( FIg. 43 ), SMAll ApIcAlly pOINtED MEDIAN ApOpHySIS ( FIg. 15 ) AND WIDE cyMbIAl lAMEllA ( FIg. 17 ).

Description. Male (paratype): TOtAl lENgtH: 1.8; cArApAcE lENgtH: 0.7; cArApAcE WIDtH: 0.7, AbDOMEN lENgtH: 1.1; AbDOMEN WIDtH: 0.8; AbDOMEN HEIgHt: 1.1. CEpHAlOtHOrAx: CArApAcE yEllOW-OrANgE WItH grAy MArkINg ON pArS tHOrAcIcA rEAcHINg PLE; pArS cEpHAlIcA ElEvAtED, pArS tHOrAcIcA SlOpINg grADUAlly. ClypEUS lOW (1x AME). CHElIcErAE yEllOW; cHElIcErAl tEEtH NOt ObSErvED. StErNUM NOt trUNcAtE, StErNAl pIt SMAll, SEpArAtED by 4x tHEIr DIAMEtEr, OrANgE, MArgIN SUffUSED WItH DArk grAy. ENDItES AND lAbIUM OrANgE. EyES: EIgHt EyES; AbOUt EqUAl SIZE, SUrrOUNDED by blAck pIgMENtAtION; AME AND LE rOUNDED, PME SOMEWHAt trIANgUlAr; AME tOUcHINg, AME-ALE SlIgHtly SEpArAtED, LE tOUcHINg, PLE-PME SEpArAtED by rADIUS Of PLE, PME SEpArAtED. AbDOMEN: OvAl, UNIfOrMly tUrqUOISE WItH fOUr SIgIllAE AND fOUr gUANINE pAtcHES AbOvE SIgIllAE ( FIg. 43 ). LEgS: FEMOrA yEllOW, tIbIAE pAlE OrANgE, MEtAtArSI AND tArSI OrANgE. LEgS tOtAl lENgtH 2.5/2.1/1.2/1.6; lEg fOrMUlA: 1423. GENItAlIA: PAlpAl cyMbIUM ScOOp-SHApED ( FIg. 16 ); pArAcyMbIUM L-SHApED; cyMbIAl lAMEllAE WIDE ( FIg. 17 ); tEgUlUM lArgE ( FIg. 16 ); cONDUctOr WIDE, pOINtED ApIcAlly ( FIg. 15 ); EMbOlIc ApOpHySES lONg AND cOMplEx; EMbOlUS SHOrt AND tUbUlAr ( FIg. 17 ); MEDIAN ApOpHySIS SHOrt WItH pOINtED tIp ( FIg. 15 ).

Female: UNkNOWN.

Distribution. EcUADOr: KNOWN ONly frOM tHE typE lOcAlIty.

Natural history. BOtH SpEcIMENS WErE cOllEctED At 2,225M IN tHE clOUD fOrESt.

Figures

FIGURES 15 – 17. Theridiosoma ankas n. sp. 15. Male palp, prolateral view. 16. Male palp, ventral view. 17. Male palp, dorsal view.

FIGURES 43 – 46. Habitus dorsal view. 43. Male, Theridiosoma ankas n. sp. 44. Male, Theridiosoma esmeraldas n. sp. 45. Male, Theridiosoma kullki n. sp. 46. Female, Theridiosoma sacha n. sp.