About this Checklist deposit the eggs of further generations. This period River Bluet S c Emma’s Dancer NW,SW,SC o Dragonflies and Damselflies belong to the insect of adult activity is called the Flight Season. Following Enallagma anna M J J A S O N Argia emma M J J A S O N order Odonata, which is split into two suborders: each species is a phenogram [ M J J A S O N ], and Anisoptera – Dragonflies and Zygoptera highlighted in red are the months (May – Nov.) when Familiar Bluet NE,SE c – Damselflies. This checklist includes 53 species of one might expect to see that species during the year. Enallagma civile M J J A S O N Dragonflies (Anisoptera) Dragonflies and 29 species of Damselflies which are Tule Bluet S c known to occur within the state of Montana. Each Species Observed through Oct. 2009 Darners Aeshnidae Enallagma carunculatum M J J A S O N species is listed under its family name and genus. Mosaic Darners Aeshna Common and scientific names are current with those Alkali Bluet S u Damselflies (Zygoptera) Black-tipped Darner NW u set by the Checklist Committee of the Dragonfly Enallagma clausum M J J A S O N Society of the Americas. Aeshna tuberculifera M J J A S O N Broad-winged Damsels Calopterygidae Northern Bluet S c Sedge Darner NW,SW u Jewelwings Calopteryx Enallagma annexum M J J A S O N Distribution Aeshna juncea M J J A S O N To the right of each common name, one or more River Jewelwing NW,SW u Boreal Bluet S c of the following regions will be listed to show the Subarctic Darner NW,SW r Calopteryx aequabilis M J J A S O N Enallagma boreale M J J A S O N approximate distribution of the species within the Aeshna subarctica M J J A S O N Marsh Bluet S c state. Canada Darner NW u S – statewide Rubyspots Hetaerina Enallagma ebrium M J J A S O N Aeshna canadensis M J J A S O N NW – northwest NC NE American Rubyspot NC,SC,NE,SE c Hagen’s Bluet NE,SE c NW Lake Darner NW,SW u SW – southwest Hetaerina americana M J J A S O N Enallagma hageni M J J A S O N NC – northcentral Aeshna eremita M J J A S O N Rainbow Bluet NE,SE u SC – southcentral SC SE Spreadwing Damsels Lestidae Variable Darner S c NE – northeast SW Enallagma antennatum M J J A S O N SE – southeast Pond Spreadwings Lestes Aeshna interrupta M J J A S O N Spotted Spreadwing S c Forktails Ischnura Zigzag Darner NW,SW u Abundance Lestes congener M J J A S O N Pacific Forktail NW,SW,NC,SC c Aeshna sitchensis M J J A S O N To the far right of each common name, one of Northern Spreadwing S c Ischnura cervula M J J A S O N Lance-tipped Darner S u the following will be listed to show the relative abundance of the species within the state. Lestes disjunctus M J J A S O N Western Forktail S c Aeshna constricta M J J A S O N c – common Sweetflag Spreadwing SE o Ischnura perparva M J J A S O N Paddle-tailed Darner S c Present in large numbers, are widespread, and Lestes forcipatus M J J A S O N Eastern Forktail NC, NE, SE u Aeshna palmata M J J A S O N should be seen if you look in the right habitat. Shadow Darner S c u – uncommon Lyre-tipped Spreadwing S c Ischnura verticalis M J J A S O N Present, but due to their low numbers, behavior, Lestes unguiculatus M J J A S O N Aeshna umbrosa M J J A S O N habitat, or distribution, they are not easily seen. Emerald Spreadwing S c Red Damsels Amphiagrion However, an average observer should be able to Neotropical Darners Rhionaeschna Lestes dryas M J J A S O N Western Red Damsel S c find them by looking in the right place at the right Amphiagrion abbreviatum M J J A S O N California Darner NW,SW,SC,SE c time. Rhionaeschna californica M J J A S O N o – occasional Pond Damsels Coenagrionidae Present in low numbers, but are not expected Eurasian Bluets Coenagrion Sprites Nehalennia Blue-eyed Darner NW,SW,NC,SC,SE u to be seen without a special effort to find them. Prairie Bluet NC o Sedge Sprite NW,SE u Rhionaeschna multicolor M J J A S O N At least a few are seen each year within their Coenagrion angulatum M J J A S O N Nehalennia irene M J J A S O N specific habitats. Green Darners Anax r – rare Subarctic Bluet NW o Dancers Argia Common Green Darner S c Not expected to be seen every year. They occur Coenagrion interrogatum M J J A S O N Paiute Dancer SW u Anax junius M J J A S O N in low numbers, may also be secretive or hard to Taiga Bluet S c identify, and may be unreported for several Argia alberta M J J A S O N Coenagrion resolutum M J J A S O N years. Variable Dancer NE,SE o Clubtails Gomphidae Argia fumipennis M J J A S O N Pond Clubtails Arigomphus Seasonal Occurrence American Bluets Enallagma Horned Clubtail SE u While dragonfly and damselfly larvae are present Arroyo Bluet NE,SE u Vivid Dancer NW,SW,SC,SE u Arigomphus cornutus M J J A S O N within their aquatic habitats throughout the year, Enallagma praevarum M J J A S O N Argia vivida M J J A S O N the adults emerge at specific times to mate and Common Clubtails Gomphus Mountain Emerald NW,SW c Pondhawks Erythemis Pronghorn Clubtail NW,NC,NE,SE u Somatochlora semicircularis M J J A S O N Western Pondhawk SW o Gomphus graslinellus M J J A S O N Ocellated Emerald NW,SW u Erythemis collocata M J J A S O N CHECKLIST OF Plains Clubtail NE,SE u Somatochlora minor M J J A S O N Gomphus externus M J J A S O N Brush-tipped Emerald NW o Meadowhawks Sympetrum Somatochlora walshii M J J A S O N Variegated Meadowhawk S c Sympetrum corruptum M J J A S O N MONTANA Hanging Clubtails Stylurus Plains Emerald SE r Brimstone Clubtail SE r Somatochlora ensigera M J J A S O N Red-veined Meadowhawk S u DRAGONFLIES & Stylurus intricatus M J J A S O N Sympetrum madidum M J J A S O N Baskettails Epitheca White-faced Meadowhawk S c DAMSELFLIES Ringtails Erpetogomphus Spiny Baskettail NW c Sympetrum obtrusum M J J A S O N NC r Eastern Ringtail Epitheca spinigera M J J A S O N Striped Meadowhawk S c Erpetogomphus designatus M J J A S O N Sympetrum pallipes M J J A S O N Skimmers Libellulidae Cherry-faced Meadowhawk S c Snaketails Ophiogomphus Whitetails Plathemis Sympetrum internum M J J A S O N Pale Snaketail NW,SW,NC,SC,SE c NW,SW,SC,SE c Common Whitetail Saffron-winged Meadowhawk S c Ophiogomphus severus M J J A S O N Plathemis lydia M J J A S O N Sympetrum costiferum M J J A S O N Sinuous Snaketail NW,SW u Band-winged Meadowhawk S c Ophiogomphus occidentis M J J A S O N Corporals Ladona Sympetrum semicinctum M J J A S O N Chalk-fronted Corporal NW c Black Meadowhawk NW,SW,NC,SC c Spiketails Cordulegastridae Ladona julia M J J A S O N Spiketails Cordulegaster Sympetrum danae M J J A S O N Pacific Spiketail NW u King Skimmers Libellula Autumn Meadowhawk NW, SW u Cordulegaster dorsalis M J J A S O N Four-spotted Skimmer S c Sympetrum vicinum M J J A S O N Libellula quadrimaculata M J J A S O N Rainpool Gliders Pantala Cruisers Macromiidae Flame Skimmer NW,SW,NC,SC u Wandering Glider SE r River Cruisers Macromia Libellula saturata M J J A S O N SE r Pantala flavescens M J J A S O N Swift River Cruiser Eight-spotted Skimmer NW,SW,SC,SE c Macromia illinoiensis M J J A S O N Libellula forensis M J J A S O N Twelve-spotted Skimmer S c Emeralds Corduliidae Libellula pulchella M J J A S O N More Information: Common Emeralds Cordulia This checklist was developed by Nathan S. Kohler and NW,SW,SC c Coburn Currier and contains information obtained from their American Emerald Whitefaces Leucorrhinia own observations as well as information from the databases Cordulia shurtleffii M J J A S O N Belted Whiteface NW,SW,SC c of The Montana Natural Heritage Program at: http://www. Leucorrhinia proxima M J J A S O N mtnhp.org/tracker and OdonataCentral (University of Texas Flame Skimmer Photo by Nate Kohler Striped Emeralds Somatochlora at Austin) at: http://www.odonatacentral.org Dot-tailed Whiteface NW,SW,SC,SE c Additional distribution data were gathered from dot maps Ringed Emerald NW,SW u Leucorrhinia intacta M J J A S O N published by T.W. Donnelly: Distribution of North American Somatochlora albicincta M J J A S O N Odonata Parts I-III, Bulletin of American Odonatology, Vol.