Olfactory learning in two Amblypygi species Paraphrynus laevifrons and Phrynus pseudoparvulus

  Olfactory learning in two Amblypygi species Paraphrynus laevifrons and Phrynus pseudoparvulus Abstract A wide diversity of arthropod taxa have demonstrated the capacity for learning, but most of our current understanding comes from only a select subset of this highly diverse clade, with most studies focusing on various insect groups. Amblypygids (Order Amblypygi, Class Arachnida), however, are emerging as a model group for studying sensory integration and the neural substrates associated with learning and memory, especially as it relates to navigation. These nocturnal creatures possess specialized sensory appendages and one of the largest and most complex mushroom bodies - the part of the arthropod brain associated with learning and memory - of any arthropod. Prior field studies on multiple species demonstrate sophisticated homing abilities while laboratory-based behavioral assays in  Phrynus marginemaculatus  confirm olfactory-based learning associated with a refuge. I...

Scorpions of the Horn of Africa (Arachnida: Scorpiones) Part XXXI. Two new genera from Somaliland: Sanaag gen. n. and Sahil gen. n. (Buthidae)

 


Scorpions of the Horn of Africa (Arachnida: Scorpiones) Part XXXI. Two new genera from Somaliland: Sanaag gen. n. and Sahil gen. n. (Buthidae)

Abstract


Two new monotypic buthid genera are described: Sanaag gen. n. and Sahil gen. n. from Somaliland, both belonging to the ‘Buthus’ group. Sanaag gen. n. (type species Gint maidensis Kovařík et al., 2018) differs from Gint Kovařík et al., 2013 in the structure of its hemispermatophore, which has a large, tall, subtriangular hook-like basal lobe, and in the shape of its telson which is rather bulbous. Sahil gen. n. (type species Sahil elmii sp. n.) differs from all morphologically similar small-sized genera of the Horn of Africa in having the ventral aspect of cheliceral fixed finger with two denticles, and the movable finger of the pedipalp with 7 subrows of denticles.


Kovařík, F. 2024 . Scorpions of the Horn of Africa (Arachnida: Scorpiones) Part XXXI. Two new genera from Somaliland: Sanaag gen. n. and Sahil gen. n. (Buthidae). Euscorpius, No. 386: 1-11. https://mds.marshall.edu/euscorpius/vol2024/iss386/1/