Definition ofTenuipalpussensu stricto (Acari, Tenuipalpidae), with redescription ofTenuipalpus caudatus(Dugès) and description of a new species from Costa Rica

Abstract

The taxonomic history of the genus Tenuipalpus Donnadieu is discussed and Tenuipalpus caudatus (Dugès) (=Tenuipalpus palmatus Donnadieu) is redescribed based on specimens from Portugal intercepted at ports of entry in the United States, and references including photographic records of the neotype of T. caudatus. In addition, a proposed new species, Tenuipalpus erbei sp. nov. is described from Costa Rica. Our results show that T. caudatus, T. erbei sp. nov. and another 36 known species of Tenuipalpus share a pair of lateral body projections associated with setae c3, considered a synapomorphy for the newly defined group, Tenuipalpus sensu stricto. We also show that its members share other character states, although these features are found elsewhere in Tenuipalpus and also in Ultratenuipalpus, indicating their origins are within Tenuipalpus. A list of Tenuipalpus sensu stricto species is presented.

Raoiella of the world (Trombidiformes: Tetranychoidea: Tenuipalpidae)

“…Beard et al 2014;Beard et al 2015;Castro et al 2016b;Tassi et al 2017;Welbourn et al 2017). The inclusion of morphological information regarding the eggs in future descriptions, for example as was provided in Beard et al (2014), Castro et al (2016a), Seeman et al (2016) and Welbourn et al (2017), may also contribute to our broader understanding of this family.…”

“…Lindquist (1985) provided an extremely detailed anatomical analysis of the Tetranychidae which has been used as a guide for the collection of information on representative tenuipalpid genera (e.g. Zhang & Fan 2004;Xu & Fan 2010;Seeman & Beard 2011;Xu et al 2013;Beard et al 2014Beard et al , 2016Castro et al 2015Castro et al , 2016aCastro et al , b, 2017Welbourn et al 2017). Lindquist (1985) places great significance on ontogenetic changes in leg chaetotaxy, pointing out that until the comparative homologisation of leg setae is accomplished for representative taxa within the Tetranychoidea, a great deal of character state data of potential significance to the systematics, phylogeny and classification of these groups will remain unknown.…”

<strong>A new species of <em>Tenuipalpus</em> sensu stricto (Acari: Tenuipalpidae) from Brazil, with ontogeny and a key to the known species </strong>

“…Adults female and male: Species of this group can be differentiated from other Tenuipalpus by presence of one pair of lateral body projections associated with setae c3. See Castro et al (2016) for a detailed diagnosis.…”

“…The definition of Tenuipalpus sensu stricto (Acari: Tenuipalpidae) was based on the re-description of T. caudatus (Dugès), 1834 (= T. palmatus Donnadieu, 1876), and on the study of 37 other known species of Tenuipalpus (Castro et al 2016). These authors indicated the presence of one pair of lateral body projections associated with setae c3 as a synapomorphy for this group.…”

Redescription of Tenuipalpus palosapis Corpuz-Raros (Trombidiformes: Tenuipalpidae) from the Philippines, with comparison to related species

“…Tenuipalpus Donnadieu is the largest genus of this family with more than 300 species described (Mesa et al 2009;Castro et al 2016aCastro et al , 2017Welbourn et al 2017). Recently, after resurrecting Colopalpus (Castro et al 2015), Castro et al (2016b) proposed the division of Tenuipalpus in two groups: sensu stricto, a homogenous group with body projections associated with opisthosomal setae c3; and sensu lato, a heterogenous group without the body projections associated with setae c3.…”