Belongs within: Sclerosomatidae. Psathyropus is a genus of harvestmen from southern Asia, characterised (indistinctly) by the presence of two pseudoarticular nodules in femur II. Tenuous legs and tenuous connections In past postings on this site, I’ve expounded at length on the taxonomic nightmares associated with the harvestman family Sclerosomatidae. High diversity combined with systems based… Continue reading Psathyropus


Belongs within: Opiliones.Contains: Irumuinae, Sidaminae, Assamiinae, Polycoryphinae, Dampetrinae, Trionyxellinae, Hypoxestinae, Selencinae, Metereca, Ereca, Chilon. The Assamiidae are a family of short-legged harvestmen found in tropical and subtropical regions of the Old World. In life, the pedipalps are held crossed one over the other when at rest. The problem with Sacesphorus Published 10 May 2015 One… Continue reading Assamiidae


Belongs within: Assamiidae. The Irumuinae are an African subfamily of blind, subterranean harvestmen (Kauri 1985). Characters (from Kauri 1985): Second metatarsus divided into two or more segments. Number of segments in tarsus II reduced and in most cases fewer than in tarsus IV, or equal in number. Inner tubercle of lateral tubercle pair in anterior… Continue reading Irumuinae


Belongs within: Assamiidae. The Sidaminae are a group of assamiid harvestmen found in Africa with large ventral spines on the pedipalp. They have been distinguished from the Maruinae by the absence of a median spine on the anterior margin of the carapace (Kauri 1985) but the significance of this distinction is questionable. Characters (from Santos… Continue reading Sidaminae


Belongs within: Assamiidae. The Polycoryphinae are a group of assamiid harvestmen found in southern Asia and central and eastern Africa. They are characterised by the presence of chitinous projections concealing the spiracles, and of a frontal spine on the anterior margin of the carapace (Santos & Prieto 2010). Characters (from Santos & Prieto 2010): Anterior… Continue reading Polycoryphinae


Belongs within: Assamiidae. The Hypoxestinae are a subfamily of assamiid harvestmen found in Africa and Asia (Santos & Prieto 2010). They are generally characterised by the absence of characters found in other subfamilies and should be considered of questionable monophyly. Characters (from Santos & Prieto 2010): Anterior margin of carapace unarmed; spiracles visible, unprotected; femur… Continue reading Hypoxestinae


Belongs within: Palpatores.Contains: Platybunus, Opilio, Egaenus, Homolophus, Odiellus, Gyinae, Phalangium, Rhampsinitus, Dasylobus, Zachaeus, Metaphalangium, Cristina, Rilaena, Metaplatybunus. The Phalangiidae is a diverse group of long-legged harvestmen found in Eurasia, North America and Africa (with some species introduced to Australasia). Members of this group are mostly leathery-bodied, with spiny legs and a characteristic penis morphology with… Continue reading Phalangiidae


Belongs within: Phalangiidae. Rhampsinitus is a genus of long-legged harvestmen in southern Africa, the males of which often have enlarged chelicerae. They are characterised by a penis with the end of the shaft broadened to form a distinct ‘spoon’ at the base of the hatchet-shaped glans (Taylor 2017). The legacy of Rhampsinitus Published 7 August… Continue reading Rhampsinitus


Belongs within: Phalangiidae. Cristina is a genus of harvestmen in which the males usually have the first pair of legs more or less thickened and/or heavily denticulate. As currently recognised, the genus is most diverse in East Africa, with fewer species in western Central Africa and southern Arabia (Staręga 1984). Disco opilioni Published 31 October… Continue reading Cristina


Belongs within: Cosmetidae. Pied harvestmen of the Antilles Published 10 October 2021 Harvestmen of the Neotropical family Cosmetidae have been featured on this site a couple of times before. Each time, I’ve commented on the dire taxonomic state of this diverse family, with many genera being poorly or inaccurately defined. Thanks to extensive (and continuing)… Continue reading Cynortoides