Theridion cuspulatum is a species of tangle-web spiders of the family Theridiidae. It is endemic in Cape Verde.García, Macías & Oromí, 2005 : Lista preliminar de especies silvestres de Cabo Verde: Hongos, Plantas y Animales Terrestres. [Preliminary lists of forest species of Cape Verde] Gobierno de Canarias, Consejería de Medio Ambiente y Ordenación Territorial, p. 64
References
Further reading Schmidt & Krause (1998), Spinnen von Santo Antão und Maio sowie zwei Salticidae von Fogo und São Nicolau (Cabo Verde) (Arachnida: Araneae). [Spiders of Santo Antão and Maio With Two Salticidae From Fogo and São Nicolau (Cape Verde)] Entomologische Zeitschrift, Frankfurt am Main, vol. 108, p. 416-428.