Chthonos Coddington, 1986

Type species: Chthonos pectorosa (O. Pickard-Cambridge, 1882) Diagnosis. MAlES AND fEMAlES ArE DIStINgUISHED frOM All OtHEr THErIDIOSOMAtIDAE gENErA by tHE prESENcE Of lAtErAl rOWS Of StrONg MAcrOSEtAE ON tHE fIrSt AND SEcOND tIbIAE, MEtAtArSI AND tArSI (FIg. 1) AND tHE fIrSt AND SEcOND lEgS SOMEWHAt cUrvED.

Composition in America. Chthonos kuyllur n. sp., C. pectorosa (O. PIckArD-CAMbrIDgE, 1882), C. peruana (KEySErlINg, 1886), C. quinquemucronata (SIMON, 1893), C. tuberosa (KEySErlINg, 1886). Distribution in America. EcUADOr, BrAZIl AND PErU.