The Terellia virens group includes eight species of uniformly greenish flies with white setulose abdomens and hyaline wings, variable in the characters of the male and female terminalia. Three new species are described and illustrated: Terellia freidbergi sp. n. from Middle and Near East, from flower heads of Centaurea behen L., T. ivannikovi V. Korneyev et Evstigneev, sp. n. from European Russia, Kazakhstan and Uzbekistan, breeding in flower heads of Ce. chartolepis Greuter, and T. whitei V. Korneyev et Mohamadzade, sp. n. reared from flower heads of Cousinia spp. in Kazakhstan, Kyrgyzstan, Turkmenistan and Iran. Illustrated diagnoses or redescriptions of other species and a key to the species of Terellia with hyaline wings and white setulose abdominal tergites are given.
New distributional data are provided for four species of the genus Tephritis Latreille, 1804, Sphenella marginata (Fallén, 1814) and Ensina sonchi (Linnaeus, 1767) (Diptera: Tephritidae). Tephritis separata Rondani, 1871 and T. mutabilis Merz, 1992 are recorded for the first time from Armenia and Transcaucasia, T. anthrax S. Korneyev et Evstigneev, 2019, from North Ossetia, and T. valida (Loew, 1858), from North Ossetia and Kabardino-Balkaria. Host plants are recorded for the larvae of each species, with Leontodon asperrimus (Willd.) Endl. being recorded for the first time as a host plant of T. mutabilis, and Caucasalia macrophylla (M. Bieb.) B. Nord. (= Senecio platyphyllus DC.) and Senecio kolenatianus C.A. Mey., as host plants of S. marginata. The morphological details of all six species of flies are illustrated in colour photos.
New data on the distribution and host plants of nine species of Tephritidae are presented. Tephritis oedipus Hendel, 1927, T. hendeliana Hering, 1944 and Terellia uncinata White, 1989 are recorded for the first time from Transcaucasia. Urophora sirunaseva (Hering, 1938) is recorded for the first time from Armenia. New host plants are recorded for five species of tephritid flies: Centaurea polyphylla Ledeb. ex Nordm. and Amberboa glauca (Willd.) Grossh. for Acanthiophilus helianthi (Rossi, 1794), Lactuca orientalis (Boiss.) Boiss. for Hypenidium roborowskii (Becker, 1907), Reichardia dichotoma (DC.) Freyn for Trupanea amoena (Frauenfeld, 1857), Cladochaeta candidissima (M. Bieb.) DC. for Trupanea stellata (Fuessly, 1775), and Centaurea cheiranthifolia Willd. for Xyphosia laticauda (Meigen, 1826). The morphological details of all species of tephritid flies recorded here are illustrated in colour photos.
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