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QUICK GUIDE TO & FAMILIES

Most useful features for identification:

Damselfly (pg. 2) Dragonfly (pg. 3-4)

Head color; spots/bars eye color & shape; color & markings on face (T-spot, line)

Thorax shape & color of stripes on top & sides presence, shape, and color of stripes on top & sides

Abdomen color; markings on top, esp. S2 and S8-S10 color; markings on top, esp. S2 and S8-S10; presence of “club” at the end Wings color & shape of stigma; orientation when perched color of wing bases, veins, and stigma; color & shape of wing spots, bands, or patches Legs color color

Forewings & hindwings similar in size & shape, held Hindwings broader than forewings; wings held out together over abdomen or no more than partly spread horizontally when perched; meet at front of head when perched; eyes widely separated (i.e., by the or slightly separated (i.e., by less than the width of the width of the head) head)

1

Damselfly Dragonfly

Vivid Dancer ( vivida); CAS Mazzacano Cardinal Meadowhawk (); CAS Mazzacano

Wings narrow, stalked at base 2 Wings broad, colored, not stalked at base

3

Wings held askew Wings held together Broad-winged Damselfly when perched when perched (); streams

Spreadwing Pond Damsels (); (); ponds ponds, streams

Dancer (Argia); Wings held above abdomen; vivid colors streams

4 Wings held along Bluet (); River Jewelwing ( aequabilis); abdomen; mostly blue ponds CAS Mazzacano

Dark abdomen with blue Forktail (); tip; small projection off top of S10 ponds/streams

California Spreadwing ( californicus); CAS Mazzacano

Tule Bluet (Enallagma carunculatum); Pacific Forktail (Ischnura Vivid Dancer (); CAS Mazzacano CAS Mazzacano cervula); CAS Mazzacano

DRAGONFLIES Eyes touch along all or Eyes separated or touching only most of inner edges at single point on head 2

Darners, Skimmers, Emeralds , Cruisers Clubtails, Spiketails, Petaltails (see next page) large; body green or blue; stripes on Darner; streams, ponds thorax; eyes touch; perch vertically

wide range of colors; wings often with Skimmer; ponds color or pattern; may be pruinose 3

eyes green; thorax hairy, iridescent Emerald; streams

large; iridescent blue thorax with yellow Cruiser; streams stripes

Blue-eyed Darner male (Rhionaeshna multicolor); CAS Mazzacano

Western River Cruiser male (); Jim American Emerald (Cordulia male (Libellula saturata); CAS Mazzacano Johnson/Encyclopedia of Life shurtleffii); CAS Mazzacano

DRAGONFLIES

Clubtails, Spiketails, Petaltais

4

eyes separated; last segments of abdo- eyes touch at single point; large; brown or eyes separated; large; black body with men expanded; green & brown or black black & yellow body; lower tip of female yellow spots on thorax & abdomen body abdmen has spike; perches at 45o angle

Clubtail*; mostly streams Spiketail; small streams Petaltail; bogs, seeps

Bison Snaketail male (); CAS Mazzacano Pacific Spiketail male (Cordulegaster Black Petaltail (); CAS Mazzacano dorsalis); Jim Johnson/iNaturalist

*In 2017, the Gomphus was re-organized and is no longer Tanypteryx hageni is one of only two petaltail in recognized as a valid genus. Visit OdonataCentral.com and click is the only & has a very narrow western range; the on the Official Checklist to North American for current spiketail species known in Oregon. Gray Petaltail (Tachopteryx thoreyi) is found in the east. genera.