<p class="Body">The anal secretory apparatus of Eriophyoidea and description of Phyllocoptes bilobospinosus n. sp. (Acariformes: Eriophyidae) from Tamarix (Tamaricaceae) from Ukraine, Crimea and USA 

Abstract

A new vagrant phyllocoptine species, Phyllocoptes bilobospinosus n. sp. (Eriophyidae, Phyllocoptinae), found on tamarisks (Tamarix tetrandra Pallas, T. smyrnensis Bunge, T. ramossisima Ledeb) in Donbass (Ukraine), Crimea, and USA is described based on conventional light microscopy and confocal laser scanning microscopy. Apart from two distinct areas of ventral cuticle bearing large, spike-like microtubercles, the new species possesses a thin translucent supracapitular plate (situated below the frontal lobe of the prodorsal shield), a short longitudinal ventral ridge anterior to the anal lobes, and unusual internal tube-like structures associated with the rectum. Careful examination of purposefully made slide mounts of partially cleared specimens revealed that adults of P. bilobospinosus possess a complex of structures associated with the rectum, including a hypertrophied, four-lobed putative anal gland and four thin tubes connected with a rectal sac. Similar tubular structures previously described in aberoptine mites of the genus Aberoptus from Brazilian Cesalpiniaceae are discussed. The synonymy of genera Aberoptus Keifer and Aceria Keifer is rejected and a new combination, Aberoptus inusitatus (Britto &amp; Navia (in Britto et al. 2008)) n. comb., is proposed. A brief review of the anal glands of Eriophyoidea is given, including a discussion on homology and the variety of forms of the anal secretory apparatus among eriophyoid genera. Further research is needed on the anatomy of anal glands in Eriophyoidea, including transmission electron microscopy based histological analyses and additional studies of eriophyoids with well-developed secretory structures associated with the rectum. These methods will lead to a much better understanding of the evolution and homology of the anal secretory apparatus, which may render it useful for future phylogenetic studies.

Molecular Phylogenetics and Light Microscopy Reveal “True” and “False” Calacarines and Novel Genital Structures in Gall Mites (Acariformes, Eriophyoidea)

“…Similar to our previous observations on Phyllocoptes bilobospinosus and Aberoptus schotiae [14,62], in slide-mounted females of P. podocarpi that were incompletely cleared, we observed outlines of anal glands filled with vesicles (Figure 2F). This is the first documented report of the elements of the recently described anal secretory apparatus (ASA sensu [14]) in Calacarini.…”

Atypically Shaped Setae in Gall Mites (Acariformes, Eriophyoidea) and Mitogenomics of the Genus Leipothrix Keifer (Eriophyidae)

“…1.4–0.60 Oil lBL HCX PL APO and 40× N.A. 1.25–0.75 Oil CS HCX PL APO, at an excitation wavelength of 405 nm, and an emission wavelength range of 415–750 nm, at 10–20% intensity from our previous studies [ 35 , 36 , 37 , 38 ].…”

Two new Eriophyes species (Acari: Eriophyidae) on tamarisk trees from Egypt

“…: P. bilobospinosus Chetverikov 2019, P. immigrans Keifer, 1940. However, only five species were recorded in Egypt (Abou-Awad & El-Borolossy 1995;Joshi et al 2013;Chetverikov et al 2019).…”

“…: E. strobilobius Dçbski 1918, E. synchytrioides Dçbski 1918, E. tetragynae Dçbski 1918; two Phyllocoptes spp. : P. bilobospinosus Chetverikov 2019, P. immigrans Keifer, 1940. However, only five species were recorded in Egypt (Abou-Awad & El-Borolossy 1995; Joshi et al .…”

“…However, only five species were recorded in Egypt (Abou-Awad & El-Borolossy 1995; Joshi et al . 2013; Chetverikov et al . 2019).…”