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> > Differentiation b/t Gomphidae and Cordulegastridae



This topic is about the Insect Order Odonata-Anisoptera

Dragonflies and damselflies are in the same order, Odonata, but they are taxonomically separated on an obscure level not built into this site, the suborder. Dragonflies are in the rarely mentioned suborder Epiprocta, and within that suborder is the infraorder Anisoptera, the scientific name by which they're best known. None of that will help you catch trout, but it explains what the hyphen in this page's name is all about. Read more...

Cordulegaster Dragonfly Nymph Cordulegaster Dragonfly Nymph (4 Pictures)
Libellulidae Dragonfly Adult Libellulidae Dragonfly Adult (3 Pictures)

There are 10 more specimens...

The Discussion

Post Reply
DMMNovember 26th, 2006, 9:39 pm
Posts: 34This goes for all Gomphidae. If the prementum is flat, and the animal has 4 segments in each antenna, and two-segmented fore and middle tarsi, and a ligula with no median cleft--Gomphid. The Corduligastridae have a spoon-shaped prementum and a cleft in the middle of toothlike processes on ligula. Now you'll know whenever you catch more Odonata.
David
TroutnutNovember 29th, 2006, 10:50 am
Administrator
Bellevue, WA

Posts: 2737		Thanks, I'll keep that in mind when I'm collecting new specimens. One of my goals for next spring is to take a lot more photos of dragonflies and other invertebrates outside the "big three" orders of mayflies, stoneflies, and caddisflies.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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