Hapalopus

Hapalopus is a genus of tarantulas that was first described by Anton Ausserer in 1875.

Diagnosis
They own a ring like keel on the palpal bulb, the tibial apophysis with convergent branches and a spermatheca having a membrane like base. They also lack stridulatory hairs and they own numerous labial cuspules.

Species
it contains 10 species, found in South America and Panama:
 * Hapalopus aymara Perdomo, Panzera & Pérez-Miles, 2009 - Bolivia, Brazil
 * Hapalopus butantan (Pérez-Miles, 1998) - Brazil
 * Hapalopus coloratus (Valerio, 1982) - Panama
 * Hapalopus formosus Ausserer, 1875 (type) - Colombia
 * Hapalopus gasci (Maréchal, 1996) - French Guiana
 * Hapalopus lesleyae Gabriel, 2011 - Guyana
 * Hapalopus nigriventris (Mello-Leitão, 1939) - Venezuela
 * Hapalopus serrapelada Fonseca-Ferreira, Zampaulo & Guadanucci, 2017 - Brazil
 * Hapalopus triseriatus Caporiacco, 1955 - Venezuela
 * Hapalopus variegatus (Caporiacco, 1955) - Venezuela

In synonymy

 * H. magdalena (Karsch, 1879) = Hapalopus formosus Ausserer, 1875

Nomen dubium

 * Hapalopus limensis Vellard, 1954 – (Though the description by Vellard wasn't published)

Transferred to other genera

 * Hapalopus aldana (West, 2000) → Magnacarina aldana
 * Hapalopus flavohirtus Simon, 1889 → Catanduba flavohirta
 * Hapalopus guianensis Caporiacco, 1954 → Neostenotarsus guianensis
 * Hapalopus incei F. O. Pickard-Cambridge, 1898 → Neoholothele incei
 * Hapalopus nondescriptus Mello-Leitão, 1926 → Vitalius nondescriptus
 * Hapalopus pentaloris (Simon, 1888) → Davus pentaloris
 * Hapalopus pictus Pocock, 1903 → Anqasha picta
 * Hapalopus rectimanus Mello-Leitão, 1923 → Plesiopelma rectimanum
 * Hapalopus semiaurantiacus (Simon, 1897) → Plesiopelma semiaurantiacum
 * Hapalopus tripepii (Dresco, 1984) → Nhandu tripepii
 * Hapalopus versicolor (Simon, 1897) → Cyriocosmus versicolor