Theridiosoma kullki, 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 : 388-390

Theridiosoma kullki new species

FIgS 22–27 , 45

Type material. MAlE HOlOtypE frOM EcUADOr, COtOpAxI PrOvINcE, SAN FrANcIScO DE LAS PAMpAS, CASA CéSAr TApIA (-00.42413 -78.95719) 1,426M, 13.Ix.2013, HAND cOllEctINg, prEMONtANE EvErgrEEN fOrESt, C. TApIA & C. CAISAgUANO ( QCAZ) . FEMAlE pArAtypE frOM PIcHINcHA PrOvINcE, OtONgAcHI BIOlOgIcAl RESErvE (-00.321205 - 78.95163) 900M, 10.xI.2014, SIftINg lIttEr, prEMONtANE EvErgrEEN fOrESt, E. TApIA, N. DUpérré ( QCAZ) .

Etymology. THE SpEcIfIc NAME IS A NOUN IN AppOSItION tAkEN frOM tHE KIcHWA lANgUAgE WOrD “SIlvEr” IN rEfErENcE tO tHE tWO SIlvEr gUANINE SpOtS prESENt ON tHE AbDOMEN.

Diagnosis. MAlES AND fEMAlES ArE DIStINgUISHED by tHE cOMbINAtION Of tHE fOllOWINg cHArActErS: AbDOMINAl cOlOUr pAttErN, yEllOWISH WItH grEy cHEvrONS, tWO SIlvEr gUANINE SpOtS ApIcAlly AND tWO blAck SpOtS ApIcOlAtErAlly ( FIgS 22 , 45 ), MAlES pAlpAl cONDUctOr bEArINg ApIcAlly A lONg, SpINE-lIkE prOcESS ( FIg. 23 ), fEMAlES WItH WIDE trIANgUlAr cOpUlAtOry DUctS ( FIg. 27 ).

Description. Male (holotype): TOtAl lENgtH: 1.5; cArApAcE lENgtH: 0.7; cArApAcE WIDtH: 0.6, AbDOMEN lENgtH: 0.8; AbDOMEN WIDtH: 0.7; AbDOMEN HEIgHt: 0.9. CEpHAlOtHOrAx: CArApAcE lIgHt yEllOW, pArS cEpHAlIcA SlIgHtly DArkEr; pArS cEpHAlIcA ElEvAtED, pArS tHOrAcIcA SlOpINg grADUAlly ( FIg. 45 ). ClypEUS lOW (1x AME). CHElIcErAE yEllOW; cHElIcErAl tEEtH NOt ObSErvED. StErNUM NOt trUNcAtE, tWO lArgE StErNAl pIt SEpArAtED by 1.5x tHEIr DIAMEtEr, yEllOW, MArgIN SUffUSED WItH DArk grAy. ENDItES AND lAbIUM lIgHt yEllOW SlIgHtly SUffUSED WItH grAy. EyES: EIgHt, AbOUt EqUAl SIZE, SUrrOUNDED by blAck pIgMENtAtION; AME AND LE rOUNDED, PME SOMEWHAt trIANgUlAr; AME tOUcHINg, AME-ALE SlIgHtly SEpArAtED, LE tOUcHINg, PLE-PME SlIgHtly SEpArAtED, PME tOUcHINg ( FIg. 45 ). AbDOMEN: OvAl; DOrSAlly, bAckgrOUND cOlOUr yEllOWISH WItH pAttErN Of grAy cHEvrONS MEDIAlly, tWO SIlvEr gUANINE SpOtS DOrSAlly AND tWO blAck SpOtS DOrSOlAtErAlly ( FIgS 22 , 45 ); vENtrAlly bAckgrOUND cOlOUr yEllOWISH StrONgly SUffUSED WItH grEy. LEgS: FEMOrA lIgHt yEllOW, tIbIAE lIgHt OrANgE, MEtAtArSI AND tArSI OrANgE; lEgS tOtAl lENgtH: 2.3/ 2.0/1.1/1.3; lEg fOrMUlA 1243. PAlp: CyMbIUM ScOOp-SHApED ( FIg. 25 ); pArAcyMbIUM L-SHApED; cyMbIAl lAMEllAE rEDUcED ( FIg. 24 ); tEgUlUM lArgE WItH SMAll prONg MESAlly ( FIg. 25 ); cONDUctOr WIDE ENDINg IN A trUMpEt SHApE WItH A lONg ApIcAl, SpINE-lIkE prOcESS ( FIg. 23 ); EMbOlIc ApOpHySES lONg AND cOMplEx; EMbOlUS SHOrt AND pOINtED ( FIg. 25 ); MEDIAN ApOpHySIS ElONgAtED WItH blUNt tIp ( FIg. 23 ).

Female (paratype): TOtAl lENgtH: 1.9; cArApAcE lENgtH: 0.6; cArApAcE WIDtH: 0.6, AbDOMEN lENgtH: 1.3; AbDOMEN WIDtH: 1.0; AbDOMEN HEIgHt: 1.2. CEpHAlOtHOrAx AND EyES: AS IN MAlE. AbDOMEN: AS IN MAlE. LEgS: COlOUrAtION AS IN MAlE. LEgS tOtAl: lENgtH 2.1/1.9/1.1/1.6; lEg fOrMUlA 1243. GENItAlIA: EpIgyNAl plAtE flAt, SpErMAtHEcAE vISIblE tHrOUgH INtEgUMENt ( FIg. 26 ). SpErMAtHEcAE ElONgAtED, jUxtApOSED; cOpUlAtOry DUctS WIDE, ArM-lIkE; fErtIlIZAtION DUctS NOt ObSErvED ( FIg. 27 ).

Natural History. SpEcIMENS WErE cOllEctED IN prEMONtANE AND lOW EvErgrEEN MONtANE fOrEStS.

Distribution. EcUADOr: COtOpAxI AND PIcHINcHA PrOvINcES.

Note. THIS NEW SpEcIES StrONgly rESEMblES tHE SpEcIES prESENtED AS Theridiosoma Sp. frOM COStA RIcA, LIMON, by CODDINgtON (1986: 62, fIgS. 132, 133).

Figures

FIGURES 22 – 27. Theridiosoma kullki n. sp. 22. Abdomen male, dorsal view. 23. Male palp, prolateral view. 24. Male palp, dorsal view. 25. Male palp, ventral view. 27. Epigynum, ventral view. 27. 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.