Metrioptera (Roeseliana) roeseli (Hagenbach, 1822) f. diluta (Charpentier, 1825) in the Montreal Area (Orthoptera: Tettigoniidae)

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Abstract
A few years ago, Urquhart and Beaudry (1953) published the first North American records of Metrioptera (Roeseliana) roeseli (Hagen.) which had been discovered near the Montreal airports in July, 1952 (Ville St. Laurent, 12. VII.-1952, 3 ♂) (Professor Beaudry (in litt., 1960) actually cites 4 ♂); Montreal, 16.VII.1952, 1 ♂; 19.VII.1952, 1 ♂). It was suggested that the species had been introduced by aircraft at some previous date. Subsequently Professor Beaudry (in litt., 1960) has taken the species in suitable grassy localities at several points on Montreal Island (Montreal, 7.VII.1953, 1 ♂; Ste Geneviève, 15.VII.1953; Mount Royal, 9.VII.1959, 1 ♂;) and the neighbouring islands of Ile Perrot (1.VII.1953, 7 ♂, 1 ♀; 3.VII.1953, 1 ♂, 3 ♀) and Ile Jesus (St. Martin, Lava1 Co., 7.VII.1953, 1 ♂). He has also encountered it subsequently all around Montreal; at Bois-des-Filion (just on the mainland north of Ile Jesus) it was “very common” during the summer of 1960.