. The Canadian field-naturalist. Natural history. Book Reviews Zoology Ontario Odonata. Volume 3 (including observations for the year 2001) Edited and compiled by Paul M. Catling, Colin D. Jones and Paul Pratt. 2002. The Toronto Entomologists' Association, Toronto, Canada. The third volume (208 pages) on Odonata (the order that includes dragonflies and damselflies) of Ontario is now available. About 25 papers are included, treating new Ontario records, notes on Odonata species rarely captured, changes in distribution patterns, annotated lists of Odonata from a region, characterization of speci
. The Canadian field-naturalist. Natural history. Book Reviews Zoology Ontario Odonata. Volume 3 (including observations for the year 2001) Edited and compiled by Paul M. Catling, Colin D. Jones and Paul Pratt. 2002. The Toronto Entomologists' Association, Toronto, Canada. The third volume (208 pages) on Odonata (the order that includes dragonflies and damselflies) of Ontario is now available. About 25 papers are included, treating new Ontario records, notes on Odonata species rarely captured, changes in distribution patterns, annotated lists of Odonata from a region, characterization of species commonly confused, book reviews, an up-to- date checklist of 166 species (80% of the Canadian fauna!) and changes in abundance for many species since Walker's work in the 1940s, and a checklist of species. The lists of Ontario records are most impressive, comprising about 62% of Volume 3, and summarizing in a database format the information about species, locality, number of males, females and immatures for each record. Though the bulk of the records are for 2001, additional records not previously published cover the years 1996 to 1998. The total number for these four years is an impressive 6059 records. Including similar lists in volumes 1 and 2, 15370 records are now data- based for 1996 to 2001. Specimens in collections pre- viously added to about 13000 Ontario specimens. This is an exceptional contribution to the natural history of Ontario, providing a solid base to show the distribution of each species, and for the conservation of Ontario Odonata. Hopefully in time, this information could lead to books on Odonata of Ontario. About 1800 databased specimens of Odonata of Ontario are deposited as voucher in the Canadian National Collection, which has been massively upgraded in the past two years (Figure 1).. Figure 1. Portion of the Odonata collection at the Canadian National Collection of insects. Unmounted spec- imens are filed in glassine envelopes. Among the many artic
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