Hydropsyche nador sp. n. (Trichoptera: Hydropsychidae), a new species of the Hydropsyche guttata species cluster from Morocco

Abstract

In this paper, we describe a new species of the Hydropsyche angustipennis species group, Hydropsyche nador sp. n., from Selouan and Bni Snassen areas in Morocco. The males of the new species are closest to those of Hydropsyche maroccana Navás, 1936 and H. resmineda Malicky, 1977 but differ from them mainly in the shape of the apical part of phallus, dorsal keel of segment IX, and the shape of harpago. We also used the size of head, eyes, and occipital setal warts and interocular distance, as well as the associated ratios for species delimitation.

In total, ten species of the genus Hydropsyche Pictet, 1834 are now known from Morocco.

https://zoobank.org/NomenclaturalActs/9883AE19-8640-4D19-93BB-327CD8EC592A

Keywords:

• North Africa
• caddisfly diversity
• species description
• Hydropsyche angustipennis species group
• Oriental Region

Acknowledgements

We would like to thank Juha Salokannel from Finland, as well as Heidi Viljanen and Pekka Malinen from the Finnish Museum of Natural History for kindly making possible observation of the type material of Hydropsyche flava, by providing pictures and information of the pinned specimen (http://id.luomus.fi/GV.32461). We would also like to thank Professor Janos Oláh for providing some old published papers, which were used in this investigation. Our sincere thanks also to Editor-in-Chief Dr Helena V. Shaverdo and two anonymous reviewers who have greatly improved this article.

Disclosure statement

No potential conflict of interest was reported by the authors.