Taxonomic Survey of the Genera Euophrys, Pseudeuophrys and Talavera, With Description of Euochin Gen. N. (Araneae: Salticidae) and With Proposals of a New Research Protocol

Abstract

The paper presents comparison of main diagnostic characters of all recognizable species of genera Euophrys C.L. Koch, 1834, Pseudeuophrys Dahl, 1912 and Talavera Peckham & Peckham, 1909, also delimiting new genus Euochin from China. All that purports to illustrate the current state of classification suggests progress and improvements. Discussed postulates include adding color macrophotograps of live specimens to the routine tools of research, and routine use of precisely documented palps and internal structures of epigyne. Implementation of the above will require change of research protocol of all Salticidae, the conclusions drawn are applicable to studies of other families of spiders. New taxa described. Gen. Euochin gen. n. Subgroup of genera EUOPHRYEAE new. Nomenclatorical corrections documentedEuophrys monadnock: Edwards, 1980: 12 (S, in part). = Euophrys nearctica Kaston, 1938c (removal from synonymy, documented - Figs 12B-C with E, as well as relevant facsimiles Figs 32-33).Icius hamatus (C. L. Koch, 1846) (one of synonyms reinstated, female only) = Euophrys altera (Simon, 1868). Euophrys talassica Logunov, 1997 = Pseudeuophrys talassica (Logunov, 1997) - comb. n., Euophrys vittata Caporiacco, 1935 - reinstated from "nomen dubium" to "pending revision" status. Talavera petrensis (C. L. Koch, 1837) = Euophrys petrensis C. L. Koch, 1837 (reinstated original combination). Overdue nomenclatorical corrections: Ballognatha typica Caporiacco, 1935 - nomen dubium, Ballognatha Caporiacco, 1935 - nomen dubium, Ballognathine Caporiacco, 1935 - nomen dubium.

Thirteen species of jumping spiders from northern Vietnam (Araneae, Salticidae)

“… Zabka gen. nov. resembles that of Euochin Prószyński, 2018 in having the indistinguishable male palp, and the big, round, paired atria, but it can be distinguished by the following: (1) the male chelicerae have one retromarginal fissidental tooth with one cusp, or a single tooth, whereas have one fissidental tooth with multiple cusps in the generotype and its congeners of Euochin (see the description of Zha et al 2014 ); (2) the bulb has small, antero-marginal lobe, whereas absent in Euochin ( Zha et al 2014 : figs 5, 6, 8, 9, 16, 17, 19, 20; Metzner 2023 ); (3) the spermathecae are anterior located, whereas posteriorly located in Euochin ( Zha et al 2014 : figs 4, 11, 15, 22; Metzner 2023 ); (4) the copulatory openings are located medially or posteriorly on atria, whereas anteriorly located, or beneath the anterior portions of atrial ridges in Euochin ( Zha et al 2014 : figs 3 10, 14, 21; Metzner 2023 ); (5) the copulatory ducts are much longer, > 3× spermathecal diameter, whereas usually less than the spermathecal diameter in Euochin ( Zha et al 2014 : figs 4, 11, 15, 22; Metzner 2023 ). The genus also somewhat resembles Euophrys C. L. Koch, 1834 in male palpal structure, but it can be easily distinguished by the broad RTA (in retrolateral view), whereas RTA is seta-like in Euophrys (see the description of Prószyński et al 2018 ).…”

“…(3) the spermathecae are anterior located, whereas posteriorly located in Euochin (Zha et al 2014: figs 4, 11, 15, 22;Metzner 2023); (4) the copulatory openings are located medially or posteriorly on atria, whereas anteriorly located, or beneath the anterior portions of atrial ridges in Euochin (Zha et al 2014: figs 3 10, 14, 21;Metzner 2023); (5) the copulatory ducts are much longer, > 3× spermathecal diameter, whereas usually less than the spermathecal diameter in Euochin (Zha et al 2014: figs 4, 11, 15, 22;Metzner 2023). The genus also somewhat resembles Euophrys C. L. Koch, 1834 in male palpal structure, but it can be easily distinguished by the broad RTA (in retrolateral view), whereas RTA is seta-like in Euophrys (see the description of Prószyński et al 2018).…”

On ten species of jumping spiders from Xishuangbanna, China (Araneae, Salticidae)

“…Comments. The species is placed in this genus based on the flat embolus, the dense, long, white setae on the proximal half of the cymbium and distally on the male palpal tibia (mostly missing in the holotype), and the copulatory ducts are markedly shorter than the spermathecal diameter; these characters are unique to Euochin species (Prószyński et al 2018;Logunov 2020). However, the spherical spermathecae, posterior origin of the copulatory ducts, and the single retromarginal cheliceral tooth differ from those of the type species of Euochin (oval spermathecae, copulatory ducts originate anteromedially, and with retromarginal cheliceral fissident), indicating that further data are required to confirm the placement of this species.…”