Anabolia bimaculata

(Walker, 1852)

Anabolia bimaculata is a of caddisfly in the Limnephilidae. It inhabits temporary pools and exhibits a distinctive adapted to fluctuating water levels. emerge in July and do not undergo reproductive . This species was the first in its demonstrated to use for mate attraction.

Pronunciation

How to pronounce Anabolia bimaculata: /ˌænəˈboʊliə ˌbaɪˌmækjʊˈleɪtə/

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Habitat

Temporary pools and ponds with fluctuating water levels. In Alberta, Canada, found in a permanent pond where water level changes allowed temporary-pool to persist. Larvae develop in lentic freshwater .

Distribution

North America; specifically documented from southern Alberta, Canada. GBIF records indicate presence in the Nearctic region.

Seasonality

emerge through July. Larvae hatch in autumn but remain in masses until submerged by rising water in spring. Larval growth occurs during spring and early summer.

Life Cycle

. are laid in masses on ground above water level in late summer. Larvae hatch in autumn but remain in egg masses until spring flooding submerges them. Larvae exhibit rapid growth rates, faster than documented for permanent-water trichopterans. emerge in July without reproductive delay.

Behavior

Uses extractable () for mate attraction; first experimental demonstration of presence in the Anabolia.

Similar Taxa

Limnephilus externusCo-occurs in same type (temporary pools); both lay above water level and exhibit rapid larval growth, but L. externus emerges in August with a one-month reproductive delay
Nemotaulius hostilisFound in same pond but occupies permanent pools rather than temporary ones; shows slower larval growth and undergoes reproductive

More Details

Pheromone Research

Experimental studies demonstrated that A. bimaculata uses extractable for mate attraction, representing the first confirmation of in the Anabolia and contributing to evidence that -mediated mate attraction is widespread in Trichoptera.

Life History Strategy

The exhibits a intermediate between typical temporary-pool and permanent-water caddisflies. While adapted to temporary pools, it can exploit permanent ponds with fluctuating water levels by laying above the waterline and timing larval development to spring flooding.