Abstract
Ball's treatment of the genus Philaenus (Proc. Ia. Acad. Sci., VI, pp. 223-226, 1898) contains a discussion of two species. Subsequently a third species described by Stearns (Ent. News, XXIX, 3, 1918) has been added and the genus reviewed by Stearns (Conn. St. Geol. Nat. Hist. Surv. Bul. 34, pt. IV, pp. 224-227, 1923). The present paper includes the description of a new Canadian species with a key to species and varieties based on material represented in the Canadian National Collection.

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