Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Black Petaltail - Tanypteryx hageni

No photos are currently available
If you have a high quality photo of this species, are confident in the identification, and would like to submit it for inclusion on the Montana Field Guide, please send it to us using our online photo submission tool.


Native Species

Global Rank: G4
State Rank: SNR


Agency Status
USFWS:
USFS:
BLM:


 

External Links





 
General Description
Black with small yellow spots and widely separated eyes. Female has ovipositor with blades that reach end of abdomen. Larva has evenly tapered 6-segmented antennae. (Needham & Westfall, 1955, Walker, 1958)

Diagnostic Characteristics
Only NA dragonfly with a prominent hairy bump on the underside of the thorax, only western dragonfly with a posteriorly concave stigma. Antennae of larvae are diagnostic, only NA dragonfly that lives in burrows.

Range Comments
Not known from Idaho or Montana (Nature Serve 2007), but was reported from Bozeman, though location is questionable (Miller and Gustafson 1996).

Observations in Montana Natural Heritage Program Database
Number of Observations: 1

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Small, trickling springs in boggy areas (Miller and Gustafson 1996).

Food Habits
Larvae feed on a wide variety of aquatic insects, such as mosquito larvae, other aquatic fly larvae, mayfly larvae, and freshwater shrimp. They will also eat very small fish and tadpoles.
Adult- The dragonfly will eat almost any soft-bodied flying insect including mosquitoes, flies, small moths, mayflies, and flying ants or termites.


References
Login Logout
Citation for data on this website:
Black Petaltail — Tanypteryx hageni.  Montana Field Guide.  .  Retrieved on , from