Still staying with larvae, but stepping outside the islands of Ireland and Britain, we have this entry from Finland. This key has an abundance of diagrams and also photos of various features, which quite novel among keys.

#TrichopteraIreland #Caddisflies #Trichoptera

Staying with the larvae, this is the book you want for caseless caddisfly larvae in Ireland and Britain. Another publication from the Freshwater Biological Association (who are, sadly, not on Bluesky. Is anyone close enough to prod them?)

#TrichopteraIreland #Caddisflies #Trichoptera

Moving from adults to larvae, here is the go-to key for cased caddisflies in Ireland and Britain. One of the many great aquatic macroinvertebrate keys by the Freshwater Biological Association.

#TrichopteraIreland #Caddisflies #Trichoptera

Next up is an older book on adult Trichoptera by T.T. Macan from 1973. While it is out-of-date in places, the illustrations by C. Joan Worthington are outstanding and can provide confirmation when used in conjunction with Barnard & Ross (2012).

#TrichopteraIreland #Caddisflies

I thought I'd take the time to share some of the books I use in identifying caddisflies (Trichoptera). This is the most up-to-date book for adult caddisflies in Ireland & Britain. There is a dichotomous key, but the line drawings of the genitalia are most valuable.

#TrichopteraIreland #Caddisflies