Subarctic Records and Range Extensions of Two Species of Tiger Beetles (Coleoptera: Cicindelidae) in Churchill and Wapusk National Park, Manitoba

Abstract

Two species of tiger beetle (Coleoptera: Cicindelidae) were collected in the vicinity of Churchill, Manitoba and Wapusk National Park. Habitats were dry, sandy areas typically preferred by this family. No tiger beetle has been recorded from this region previously. Cicindela longilabris longilabris was collected in two localities, one south of Churchill and another on a relict beach ridge in Wapusk National Park. Cicindela limbata hyperborea was collected only on the beach ridge, where adults co-occurred with C. longilabris longilabris. These localities represent significant range extensions for both species.

An Invertebrate Perspective to Hutchinson’s Ratio Using Co-Occurring Tiger Beetle (Coleoptera: Cicindelidae) Assemblages

“…Studies of co-occurring tiger beetles have concentrated on niche partitioning of species according to preferences for prey, vegetation, temperature, soil characteristics and oviposition choice (Ganeshaiah & Belavadi, 1986;Hoback et al, 2000;Woodcock et al, 2010). Further, co-existence as a communal roost has been related with cryptic advantage, thermoregulation and synchrony of reproduction and dispersal (Bhargav & Uniyal, 2008).…”