Abstract
Urophora sevanensis sp. nov. is described from Armenia and a key is provided for separation of the new species from U. aprica (Fallén, 1820) and U. trinervii Korneyev et White, 1996. The new species was reared from capitula of Psephellus sp. in Armenia together with the already known Terellia ermolenkoi Korneyev, 1985. Along with U. trinervii Korneyev et White, 1996, this is the second species of the genus Urophora Robineau-Desvoidy, 1830 known to attack capitula of the genus Psephellus Cassini. The new species is characterised by separated subbasal and discal crossbands, separated discal and preapical crossbands, anteriorly connected preapical and apical crossbands and the aculeus with distinct preapical primary and small secondary steps. The morphological details of T. ermolenkoi in colour photos are also presented.
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