Revision of Cyriocosmus Simon, 1903, with notes on the genus Hapalopus Ausserer, 1875 (Araneae: Theraphosidae)
Zootaxa 846: 1-31.
Abstract
The genus <i>Cyriocosmus</i> Simon, 1903 is revised based on most types and additional material from Argentina, Brazil, Colombia, Tobago Island and Venezuela. Two species are newly described from Brazil: <i>Cyriocosmus</i> nogueira-netoi and <i>Cyriocosmus fernandoi</i>. The species <i>Cyriocosmus fascia-tus</i> (Mello-Leitão, 1930), formerly synonymized with <i>Cyriocosmus elegans</i>, is revalidated. <i>Metrio-pelma nigriventris</i> (Mello-Leitão, 1939) and <i>Cyriocosmus butantan</i> Pérez-Miles, 1998 are transferred to <i>Hapalopus</i> Ausserer, 1875, proposing <i>Hapalopus nigriventris</i> (Mello-Leitão, 1939) new combination and <i>Hapalopus butantan</i> (Pérez-Miles, 1998) new combination. The female of <i>Hapalopus butantan</i> is described for the first time. All 11 species of <i>Cyriocosmus</i> are diagnosedand keyed. A cladistic analysis with 28 characters and 19 taxa was carried out. Searches using three phylogenetic packages found a single, totally resolved tree with the same topology.