. The Canadian field-naturalist. December, 1940] The Canadian Field-Naturalist 131. Fig I: Showing the present distribution of the European Praying Mantis in Ontario. Referring to the accompanying map, it would seem that the range extention is definitely west- ward from the vicinity of Prince Edward County. It may be predicted that within a short period of time the praying mantis will range along the north shores of Lake Erie, Lake Ontario and the St. Lawrence River, from Windsor on the west to Lancaster on the east. Once established, the pray- ing mantis will most likely occur along the north
. The Canadian field-naturalist. December, 1940] The Canadian Field-Naturalist 131. Fig I: Showing the present distribution of the European Praying Mantis in Ontario. Referring to the accompanying map, it would seem that the range extention is definitely west- ward from the vicinity of Prince Edward County. It may be predicted that within a short period of time the praying mantis will range along the north shores of Lake Erie, Lake Ontario and the St. Lawrence River, from Windsor on the west to Lancaster on the east. Once established, the pray- ing mantis will most likely occur along the north shore of Lake Erie in numbers equal to it present status in Prince Edward County. It is quite un- likely that it will extend its range northward, as pointed out later in the present paper the records from Miner's Bay and Ottawa are most likely accidental, transported by motor car or on ship- ments of goods. The following are the localities from which the praying mantis has been reported or taken: Toronto, Kingston, Bowmanville, Beamsville, Belleville, Colborne, Orono, West Hill, Picton, Willowdale, Rouge River, Consecon 1(), Ameliasburg (), Lake Opinicon (), Spencerville (), Ottawa (), Fort Erie, Deseronto, Miner's Bay, Port Perry, Scarboro, Cooksville, Kingston, Colborne, Green Point, and Cobourg. Of the numerous specimens of praying mantis brought to the museum during the summer of 1939 three specimens, two females (one brown, 1. ; Canadian National Collection, Ottawa. one green) and one male, received on August 22, were kept in captivity; grasshoppers were used as food. Copulation took place between the male and the green female on August 26, and between the same male and the brown female on August 27. The male died, without any apparent injury, on August 28. On September 16 an egg cocoon was deposited by the green female. A second egg cocoon, that was decidedly smaller than the first, was deposited on September 28. From September 23 to Octo
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