One more new species of Chaerilobuthus Lourenço & beigel, 2011 (Scorpiones: Chaerilobuthidae) from Early Cretaceous Burmite

Posted by
  One more new species of Chaerilobuthus Lourenço & beigel, 2011 (Scorpiones: Chaerilobuthidae) from Early Cretaceous Burmite Abstract . – The genus Chaerilobuthus is probably the most speciose group among those found in Burmite. In some recent publications most aspects concerning the family Chaerilobuthidae Lourenço & Beigel, 2011 and the genera composing it were precisely discussed; consequently, no further comments will be provided in this contribution. Only one more new species belonging to the genus Chaerilobuthus is described. Chaerilobuthus franzschmidti Lourenço sp . n ., represents the 16th species to be described for this genus confirming therefore the strong speciose characteristic of the group. The new species shows some marked morphological differences when compared to the previous known species, attesting the existence of a major variability within Chaerilobuthus . Lourenço W. R. & Velten J., 2026. – Une nouvelle espèce pour le genre Chaerilobuthus Lou...

The validity of Ancylometes birabeni (Carcavallo & Martínez, 1961) (Araneae: Ancylometidae)

Posted by

 


The validity of Ancylometes birabeni (Carcavallo & Martínez, 1961) (Araneae: Ancylometidae)

Abstract
Carcavallo & Martínez (1960; 1961) described four new species and proposed a new genus of Ctenidae Keyserling, 1877 from Argentina. Of these, Corinoctenus anomalosto mus Carcavallo & Martínez, 1961 and Corinoctenus green wayi Carcavallo & Martínez, 1960 were synonymized first with Ancylometes bogotensis (Keyserling, 1877) by Scia pelli & Gerschman (1970) and later removed and placed as junior synonyms of Ancylometes concolor (Perty, 1833) by Höfer & Brescovit (2000). The three remaining valid names are the genus Montescueia Carcavallo & Martínez, 1961 and its type species Montescueia leitaoi Carcavallo & Martínez, 1961, described based on a male from Salta prov ince in north-west Argentina, and Ancylometes birabeni Carcavallo & Martínez, 1961 described based on a female from Corrientes, north-east Argentina. Until recently, Ancy lometes was contained in the family Ctenidae Keyserling, 1877 but was transferred to the new family Ancylometidae Hazzi, Wood & Hormiga, 2025 by those authors. The trans fer of Ancylometes s.s. was well supported. In this work, we discuss the identity of A. birabeni, which possesses a cribellum and calamistrum and is unequivocally a ctenid of the subfamily Acanthocteninae.

Acknowledgement: I’d like to sincerely thank Danniella Sherwood for kindly sharing this manuscript with me through ResearchGate.

Sherwood, Danniella & Piacentini, Luis. (2025). The validity of Ancylometes birabeni (Carcavallo & Martínez, 1961) (Araneae: Ancylometidae). Arachnology. 20. 279-280.