Theridiosoma sacha, 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 : 390

Theridiosoma sacha new species

FIgS 28, 29 , 46

Type material. FEMAlE HOlOtypE frOM EcUADOr, COtOpAxI PrOvINcE, OTONGA BIOlOgIcAl RESErvE (-00.42261 - 79.5107), 05–07.Ix.2014, gENErAl cOllEctINg, E. TApIA, C. TApIA, N. DUpérré ( QCAZ) . FEMAlE pArAtypE, SAME DAtA.

Etymology. THE SpEcIfIc NAME IS A NOUN IN AppOSItION tAkEN frOM tHE KIcHWA lANgUAgE MEANINg “fOrESt”.

Diagnosis. FEMAlES ArE DIStINgUISHED frOM All Theridiosoma by tHEIr SplIt EpIgyNAl plAtE ( FIg. 28 ).

Description. Female (holotype): TOtAl lENgtH: 2.1; cArApAcE lENgtH: 0.7; cArApAcE WIDtH: 0.7, AbDOMEN lENgtH: 1.4; AbDOMEN WIDtH: 1.5; AbDOMEN HEIgHt: 1.4. CEpHAlOtHOrAx: CArApAcE pArS cEpHAlIcA AND pArS tHOrAcIcA MEDIAlly DArk OrANgE-brOWN StrONgly SUffUSED grEy, lAtErAlly WHItISH; pArS cEpHAlIcA ElEvAtED, pArS tHOrAcIcA SlOpINg grADUAlly ( FIg. 46 ). ClypEUS lOW (1x AME). CHElIcErAE bASAlly WHItISH, ApIcAlly yEllOW-OrANgE; cHElIcErAl tEEtH NOt ObSErvED. StErNUM NOt trUNcAtE, StErNAl pIt SMAll SEpArAtED by 3,5x tHEIr DIAMEtEr, OrANgE, MEDIAlly NOt SUffUSED, lAtErAlly AND MArgIN SUffUSED WItH DArk grAy. ENDItES AND lAbIUM OrANgE. EyES: EIgHt EyES; AbOUt EqUAl SIZE, AME SOMEWHAt SMAllEr, 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 SlIgHtly SEpArAtED ( FIg. 46 ). AbDOMEN: WIDE OvAl, bAckgrOUND cOlOUr bEIgE WItH blAck lAtErAl rINg, DOrSOMEDIAlly WItH gUANINE SpOtS AND blAck MArkINgS ( FIg. 46 ); vENtrAlly MOStly blAck. LEgS: FEMOrA WHItISH, pAtEllAE, MEtAtArSI AND tArSI OrANgE; lEgS tOtAl lENgtH: 2.1/1.9/1.2/1.7; lEg fOrMUlA 1243. GENItAlIA: EpIgyNAl plAtE prOtrUDINg, DEEply NOtcHED MEDIAlly ( FIg. 28 ). SpErMAtHEcAE trIANgUlAr, cOMprESSED AND jUxtApOSED; cOpUlAtOry DUctS rObUSt, WIDE, cOIlINg tO jOIN tHE SpErMAtHEcAE; fErtIlIZAtION DUctS SHOrt AND cUrvED ( FIg. 29 ).

Male: UNkNOWN.

Distribution. EcUADOr: KNOWN ONly frOM tHE typE lOcAlIty.

Figures

FIGURES 28, 29. Theridiosoma sacha n. sp. 28. Epigynum, ventral view. 29. Internal genitalia, 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.