Theridiosoma esmeraldas, 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 : 385-388

Theridiosoma esmeraldas new species

FIgS 18–21 , 44

Type Material. MAlE HOlOtypE frOM EcUADOr, COtOpAxI PrOvINcE, OTONGA BIOlOgIcAl RESErvE, RIO ESMErAlDAS (- 00.42180ºS - 79.01325ºW) 1,717M, 24–30.v.2014, SIftINg MOSSES, lOW EvErgrEEN MONtANE fOrESt, E. TApIA, C. TApIA, N. DUpérré ( QCAZ).

Etymology. THE SpEcIfIc NAME IS NOUN IN AppOSItION tAkEN frOM tHE typE lOcAlIty RIO ESMErAlDAS. Diagnosis. MAlES ArE DIStINgUISHED frOM All SpEcIES by tHE cOMbINAtION Of tHE fOllOWINg cHArActErS: yEllOWISH WItH grAy pAttErN AND tWO gUANINE SpOtS MEDIAlly ( FIgS 18 , 44 ); bIpArtItE MEDIAN ApOpHySIS ( FIg. 19 ), SIMplE IN All OtHEr SpEcIES.

Description. Male (holotype): TOtAl lENgtH: 2.1; cArApAcE lENgtH: 0.9; cArApAcE WIDtH: 0.8, AbDOMEN lENgtH: 1.2; AbDOMEN WIDtH: 1.0; AbDOMEN HEIgHt: 1.2. CEpHAlOtHOrAx: CArApAcE DArk brOWN WItH grAy MArkINg ON pArS tHOrAcIcA rEAcHINg PLE, MArgIN AND rADIAtINg lINES ( FIg. 44 ). PArS cEpHAlIcA ElEvAtED, pArS tHOrAcIcA SlOpINg grADUAlly. ClypEUS lOW (1x AME). CHElIcErAE OrANgE; prOMArgIN WItH 7 tEEtH, rEtrOMArgIN NOt ObSErvED. StErNUM, cONcAvE MEDIAlly, bAckgrOUND cOlOUr OrANgE StrONgly SUffUSED WItH DArk grEy, NOt trUNcAtED, StErNAl pIt lArgE SEpArAtED by 1.5x tHEIr DIAMEtEr. 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 tOUcHINg, LE tOUcHINg, PLE-PME, SlIgHtly SEpArAtED, PME SEpArAtED ( FIg. 44 ). AbDOMEN: OvAl; DOrSAlly WItH yEllOWISH bAckgrOUND cOlOUr AND grEy pAttErN ( FIgS 18 , 44 ), tWO gUANINE SpOtS MEDIAlly; vENtrAlly bAckgrOUND cOlOUr yEllOWISH StrONgly SUffUSED WItH grEy. LEgS: FEMOrA AND pAtEllAE yEllOW, tIbIAE, MEtAtArSI AND tArSI OrANgE; tIbIA, MEtAtArSUS AND tArSUS IV WItH DUSky bAND ApIcAlly; lEgS tOtAl lENgtH 3.2/2.6/1.6/1.8; lEg fOrMUlA 1243. GENItAlIA: PAlpAl cyMbIUM ScOOp-SHApED ( FIg. 21 ); pArAcyMbIUM L-SHApED; cyMbIAl lAMEllAE NArrOW ( FIg. 20 ); tEgUlUM lArgE ( FIg. 21 ); cONDUctOr WIDE WItH WEll SclErOtIZED rOUNDED tIp ( FIg. 19 ); EMbOlIc ApOpHySES SHOrt AND cOMplExES; EMbOlUS SHOrt AND pOINtED ( FIg. 21 ); MEDIAN ApOpHySIS SHOrt AND bIpArtItE, ApIcAl pArt WItH SMAll WEll SclErOtIZED blUNt tIp ( FIg. 19 ).

Female: UNkNOWN.

Distribution. EcUADOr: KNOWN ONly frOM tHE typE lOcAlIty.

Natural History. THE typE SpEcIMEN AND ONly SpEcIMEN WAS cOllEctED IN lOW EvErgrEEN MONtANE fOrESt At 1,717M.

Figures

FIGURES 18 – 21. Theridiosoma esmeraldas n. sp. 18. Abdomen male, dorsal view. 19. Male palp, prolateral view. 20. Male palp, dorsal view. 21. Male palp, ventral 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.