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. Specimens are further differentiated from the closely-related Notahapalopus genus by a single round spermathecal receptacle, which is Y-shaped in Notahapalopus.
Species it contains 8 species, found in South America and Panama: Hapalopus coloratus Valerio, 1982 - Panama Hapalopus formosus Ausserer, 1875 (type) - Colombia Hapalopus guerreroi Sherwood, Gabriel, Peñaherrera-R., Osorio, Benavides, Hörweg, Brescovit & Lucas, 2024 - Colombia Hapalopus nigriventris Mello-Leitão, 1939 - Venezuela Hapalopus planetearth Dupérré & Tapia, 2025 - Ecuador Hapalopus platnicki Sherwood, Gabriel, Peñaherrera-R., Osorio, Benavides, Hörweg, Brescovit & Lucas, 2024 - Colombia Hapalopus triseriatus Caporiacco, 1955 - Venezuela Hapalopus vangoghi Sherwood, Gabriel, Peñaherrera-R., Osorio, Benavides, Hörweg, Brescovit & Lucas, 2024 - Colombia
In synonymy H. magdalena (Karsch, 1879) = Hapalopus formosus Ausserer, 1875 H. variegatus (Caporiacco, 1955) = Chromatopelma cyaneopubescens Strand, 1907
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 aymara (Perdomo, Panzera & Pérez-Miles, 2009) → Notahapalopus aymara Hapalopus butantan (Pérez-Miles, 1998) → Jambu butantan Hapalopus flavohirtus (Simon, 1889) → Catanduba flavohirta Hapalopus gasci (Maréchal, 1996) → Notahapalopus gasci Hapalopus guianensis (Caporiacco, 1954) → Neostenotarsus guianensis Hapalopus incei (F. O. Pickard-Cambridge, 1898) → Neoholothele incei Hapalopus lesleyae (Gabriel, 2011) → Jambu lesleyae 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 serrapelada Fonseca-Ferreira, Zampaulo & Guadanucci, 2017 → Notahapalopus serrapelada Hapalopus tripepii (Dresco, 1984) → Nhandu tripepii Hapalopus versicolor (Simon, 1897) → Cyriocosmus versicolor
References