Tarsal-asymmetry
Guides
Callicorixa vulnerata
water boatman
Callicorixa vulnerata is a species of water boatman (family Corixidae) found in North America. The species exhibits sexual size dimorphism, with documented research focusing on tarsal asymmetry and trait size variation in relation to fitness. Mid-leg tarsi are used to cling to bottom substrate during underwater feeding. The species was described by Uhler in 1861 and is currently accepted under the genus Callicorixa.