[Odonata-l] Fliers vs Perchers database for North American species?

[aardila@uoguelph.ca]

Hello everyone,

I wonder if there is a database describing the flight mode of North
American Odonata. I have read Zygopterans are almost all considered
perchers, as well as Gomphiidae and Libellulidae, while Aeshnids are
fliers. There are exceptions in libellulids such as members of Tramea.

Is there a database listing exceptions? What about the flight mode for
members of Cordulegastridae, Cordulidae and Macromiidae? For example:

Cordulegaster maculata
Cordulia shurtleffi
Dorocordulia libera
Didymops transversa
Macromia illionensis georgina
Epitheca canis
Neurocordulia yamaskanensis
Somatochlora williamsoni

I also wonder about members of Nehalennia. They are so small and they  
seem to hop from leaf to leaf rather than flying...

Thank you in advance for any guidance in the topic,

Cheers,

Alex
--
Alex Ardila-Garcia
MSc Candidate
Genomic Diversity Lab
Dept. Integrative Biology
University of Guelph
Guelph (On), Canada
N1G 2W1
1-519-824-4120 ext.52548
http://www.genomesize.com/gregorylab/
--