Abstract
The caddisfly fauna of the Kurdistan Province in Iran is poorly known, with only a few reported species until now. In this paper, we describe a new species, Hydropsyche kurdistanica Ibrahimi and Mohammadi sp. n. from the Zagros Mountains in Kurdistan. Males of the new species are most close to H. delamarei (Jacquemart, 1965) and H. lundaki Chvojka, 2006, but differ mainly in exhibiting a combination of the following characteristics: (1) dorsal keel of segment IX moderately wide with tapering apex in dorsal view, (2) digitiform appendages moderately long, almost equally wide, with rounded apex, and directed downwards in lateral view, (3) apical part of phallus short and broad, with short, somehow triangularly rounded lateral projections, (4) phallus strongly curved after basal third in lateral view, ventroapically rounded, (5) habitus and wings dark brown to blackish. Hydropsyche kurdistanica Ibrahimi and Mohammadi sp. n. is the twenty-fourth known species of the genus Hydropsyche Pictet, 1834 known from Iran and the second one from Kurdistan Province. http://www.zoobank.org/urn:lsid:zoobank.org:pub:992D271C-3327-4706-8625-7662CA4E2EF4
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