A new species of Typhlodromus (Anthoseius) De Leon and redescription of T. (A.) montanus Chant & Yoshida-Shaul from Russia

Abstract

Typhlodromus (Anthoseius) tetraporus sp. nov., collected on grasses in Crimea, is proposed as a new species for science. The new species can be separated from all known species of Typhlodromus (Anthoseius) by the combination of following characters; peritreme extending almost to level of setae j1, four pairs of solenostomes on dorsal shield, two pairs of setae on sternal shield, a sclerotised v-shaped plate posterior to sternal shield, four pairs of pre-anal setae, a pair of small rounded pre-anal solenostomes, differentiated and larger atrium of spermatheca and eight setae on genu II. In addition, T. (A.) montanus Chant & Yoshida-Shaul (Acari: Phytoseiidae), a species only known based on its original description from Canada is reported for the first time in Russia. The new record is redescribed and illustrated based on female specimens collected from Prunus padus L. (Rosaceae) where it was associated with eriophyid mites in Pereval Seminskiy, Altai Republic. This species may be an important predator as a potential biological control agent of eriophyid mites.

Redescription of Typhlodromus (Anthoseius) Kuznetsovi (Denmark and Welbourn) (Acari: Phytoseiidae) Based on Holotype and Newly Collected Material From Tajikistan

“…These characters include: the number of dorsal solenostomes, the number of teeth on the movable digit of chelicera, the position of sternal setae ST3, the presence of preanal pores on ventrianal shield, and the reticulation of ventrianal shield. It should be noted that the aforementioned morphological characters are of great importance and are widely used in the species identification within the subgenus (Kolodochka 1992;Tsolakis and Ragusa 2020;Döker et al 2021;Khaustov et al 2021). Thus, the purpose of our study is to redescribe Typhlodromus (Anthoseius) kuznetsovi based on the holotype and the newly collected materials.…”

A New Species of Typhlodromus (Anthoseius) De Leon (Acari: Mesostigmata: Phytoseiidae) From Sakhalin Island, Russia

“…The subgenus Typhlodromus (Anthoseius) De Leon (1959), belonging to the subfamily Typhlodrominae, is one of the largest groups of predators in the family Phytoseiidae, with about 390 described species, including synonyms (Kolodochka, 2006;Chant and McMurtry, 2007;Demite et al, 2021, Döker et al, 2021. The species in this subgenus can be distinguished from Typhlodromus (Typhlodromus) Scheuten, a closely related subgenus, by the presence of dorsal seta S5 (Chant and McMurtry, 1994).…”