DNA barcode-based survey of Trichoptera in the Crooked River reveals three new species records for British Columbia

• Published in: PeerJ
• Main Authors: Daniel J. Erasmus, Emily A. Yurkowski, Dezene P.W. Huber
• Format: Article in Journal/Newspaper
• Language: English
• Published: PeerJ Inc. 2018
• Subjects: Trichoptera; Caddisflies; British Columbia; Lepidostoma togatum; Ceracleaannulicornis; Cheumatopsyche harwoodi; Medicine; R; Biology (General); QH301-705.5; Arctic; Crooked River
• Online Access: https://doi.org/10.7717/peerj.4221; https://doaj.org/article/58e8b82a7029414c8660b105973cce5f

Anthropogenic pressures on aquatic systems have placed a renewed focus on biodiversity of aquatic macroinvertebrates. By combining classical taxonomy and DNA barcoding we identified 39 species of caddisflies from the Crooked River, a unique and sensitive system in the southernmost arctic watershed in British Columbia. Our records include three species never before recorded in British Columbia: Lepidostoma togatum (Lepidostomatidae), Ceraclea annulicornis (Leptoceridae), and possibly Cheumatopsyche harwoodi (Hydropsychidae). Three other specimens may represent new occurrence records and a number of other records seem to be substantial observed geographic range expansions within British Columbia.