|Publication Type:||Journal Article|
|Year of Publication:||1959|
|Journal:||Annals of the Entomological Society of America|
The external and internal skeleton and the musculature of the pterothorax of <I>Lethocerus</I> are described and figured. Studies of these structures revealed that the front and hind wings possess definite mechanisms for eoaptation, and that torsion of the wings is regulated by modified external sclerites rather than by the musculature of the basalare and subalare. The structure and musculature of the middle and hind legs are described, and the swimming mechanisms discussed.