Redescription of the last instar larva of Stenophylax fissus (McLachlan 1875) and the DNA barcode of Stenophylax crossotus McLachlan 1884 (Trichoptera: Limnephilidae) with an updated diagnostic matrix of the known larvae of Stenophylax species of the Iberian Peninsula.

The larva of Stenophylax fissus (McLachlan 1875) is redescribed, illustrated, and compared with morphologically similar Limnephilidae larvae from the Iberian Peninsula. In addition, the sequence of the mtCOI gene in the barcode region of one individual is reported. Likewise, the barcode and the conspecificity between two larvae and one female of the non-sequenced species S. crossotus are given. In addition, the high genetic diversity among S. sequax populations is highlighted, suggesting a complex of cryptic species. Finally, a diagnostic matrix of the known larvae of Stenophylax species from the Iberian Peninsula is provided.

Contribution to knowledge of the Trichoptera of northwestern Algeria: New species records for the Algerian fauna and taxonomic remarks for the Maghreb fauna.

The caddisfly fauna of Algeria is far from complete. In this study, we present data from Trichoptera sampling in northwestern Algeria (Tafna and Ghazouana River basins) during 20142019, enhancing knowledge of this group in the country. We were able to identify 30 species and 17 genera in the study area. Among the listed taxa, five species (Hydroptila fortunata, Ecnomus deceptor, Tinodes waeneri, Limnephilus lunatus, Setodes argentipunctellus,) are new records for Algeria. An updated species checklist of Algerian Trichoptera includes 63 species. We also provide an update of the Maghreb checklist with comments on species distributions. The Maghrebian caddisfly checklist, which includes 44 Maghrebian endemic species, is still very poor in relation to that of neighboring Mediterranean geographical areas and countries, such as the Iberian Peninsula (Spain and Portugal), France, or Italy.

Checklist and key for identification of larvae of Hydropsyche species (Hydropsychidae, Trichoptera) of the Maghreb.

Twelve species of the genus Hydropsyche (Trichoptera) are reported from the Maghreb; six in Tunisia, eight in Morocco, and eleven in Algeria. These three North African countries are inhabited by common species, except that H. siltalai has been reported only from Algeria and H. pandiel only from Morocco. A list of Hydropsyche species known from the Maghreb is presented and a key for identification of described larvae of Maghreb Hydropsyche species is provided.