The paper provides data on two new and two little known Coptotriche Walsingham and Tischeria Zeller species from Primorskiy Kray (=Primorskiy Territory), Russian Far East: Coptotriche minuta Diškus & Stonis, sp. nov., Tischeria unca Diškus & Stonis, sp. nov. are described, T. decidua siorkionla Kozlov and T. sichotensis Ermolaev are redescribed. Currently, together with the described new species, the fauna of Tischeridae of Far Eastern Russia comprises three Coptotriche species and seven Tischeria species. A neotype, replacing the missing type series of T. sichotensis, is designated here. For the first time all four species treated from Russian Far East are illustrated with photographs of the adults and genitalia (T. sichotensis also with photographs of the leaf-mines).
East Asia is famous for its tremendous overall biodiversity, and the Nepticulidae are no exception. The majority of the currently known fauna of Nepticulidae was described in 1984-1987 by several authors, but R. Puplesis is the author of the largest number of new species from the region. Unfortunately, the genitalia of all species from Primorskiy Kray, Sakhalin, and the Kuril Islands were described from temporary slides in glycerol, and therefore, the drawings do not always show all details of genital armature or may be confusing. Without the baseline data providing morphology of genital armature of type material, it is impossible to continue studies on the East Asiatic fauna of Nepticulidae. In this paper we reexamine and document for the first time with photographs the types of 56 species described by R. Puplesis from the Russian Far East. Details of the morphology is updated for most of the reexamined species.
Over the few couple of decades, the Nepticulidae of East Asia have been the subject of continuing investigation. Male genitalia of the nepticulid species described from Primorskiy Kray (the Russian Far East) were reexamined in the preceding paper in this journal. The present paper continues our study on the diversity and systematics of the Nepticulidae of East Asia based on a sample of specimens collected in 1974-1990 at various sites of the southern part of Primorskiy Kray and treats 35 species: two new taxa (Ectoedemia ortiva sp. nov. and E. species 219) and 33 other species. Seventeen of them are briefly discussed and illustrated with photographs of male genitalia. Two new synonyms are proposed, and three new distribution records are provided. We also provide an updated checklist of the Nepticulidae of East Asia, which comprises 105 species; 67 species occur in the Russian Far East and 53 in Japan (20 of which occur both in Japan and Russia). Species with Euro-East Asiatic distribution currently comprise 11% of the Japanese fauna and 16% of the continental fauna of the Russian Far East, Primorskiy Kray.
First records of Elachistinae are given from Thailand. Ten species of Elachistinae are reported, eight of which are described as new: Urodeta longa Sruoga & Kaila sp. nov., Elachista buszkoi Sruoga & Kaila sp. nov., E. oryx Sruoga & Kaila sp. nov., E. pellineni Sruoga & Kaila sp. nov., E. capricornis Sruoga & Kaila sp. nov., E. phichaiensis Sruoga & Kaila sp. nov., E. loeiensis Sruoga & Kaila sp. nov. and E. siamensis Sruoga & Kaila sp. nov. The new species are diagnosed and illustrated with photographs of the adults and genitalia. One species remains unidentified to species level.
Stigmella acuta Diškus, Navickaitė & Remeikis, sp. nov., a new species of oak-feeding leaf-miner belonging to the S. hemargyrella group, and S. cornuta Rocienė & Stonis, sp. nov., belonging to the newly designated S. cornuta group, are described from Asia and, for the first time, the S. hemargyrella group is associated with Quercus as a host-plant. The new species are illustrated with photographs of the leaf mines, adults, and genitalia. Diagnostics and host-plant preferences of seven Stigmella species groups associated with oaks (the S. caesurifasciella, S. saginella, S. quercipulchella, S. ruficapitella, S. castanopsiella, S. hemargyrella and S. cornuta groups) are discussed.
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