Wisconsin Odonata Survey

Back

Somatochlora hineana  (Williamson, 1931)
Hine's Emerald


Corduliidae, Emerald Family
"Most Wanted" Species

The medium-sized, dark brown striped emeralds have some pale markings on the thorax and abdomen, black legs, clear wings and brilliant green eyes. The thorax has a metallic bronze-green sheen and the abdomen is dark metallic black-green. Most species are uncommonly seen, but this may be largely due to their secretive nature. When flying, most species look alike which is why in-hand identifications of their anatomical features are often needed.

Status-Global/State:

Global: G2G3     Wisconsin: S1     Endangered

Distinguishing Characteristics:

Varying from 2.3 to 2.5 inches long, this large emerald has 2 bright yellow lateral stripes on the thorax. The face is yellow. Some females' wings are tinted brown.

Description of Habitat/Range:

The Hine's Emerald has a very limited range, and some of its habitats are in danger of being developed. They can be found in eastern Wisconsin, Michigan, and a few other states to the south. They prefer seasonally dry marshy fens, especially spring-fed seepages over limestone bedrock, usually with narrow-leaved cattails or sedges.

Flight Season:

Late June to late August in Wisconsin.


Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
2%
(3)
11%
(15)
81%
(114)
6%
(8)
Shading illustrates monthly percentages of the total flight season records for the species. Each flight season record is a unique date/location/observer combination where one or more adult or an exuvia was recorded (excludes nymphs). The actual number of flight season records for each month is shown in parentheses.

Flight seasons begin earlier in the southern part of the state, often by a week or more. Also, flight charts may not be accurate for rare species because of few data available.
View user-submitted photos

(Click on photos to enlarge)
Photo of Male Hine's Emerald
Male Hine's Emerald. © Dan Jackson

Male Hine's Emerald
Photo of Male Hine's Emerald
Male Hine's Emerald. © Vic Berardi

Male Hine's Emerald
Photo of Male Hine's Emerald
Male Hine's Emerald. © W.A. Smith

Male Hine's Emerald
Photo of Female Hine's Emerald with eggs
Female Hine's Emerald with eggs. © W.A. Smith

Female Hine's Emerald with eggs



This site is produced in conjunction with the Wisconsin Aquatic and Terrestrial Resources Inventory and sponsored by the Wisconsin Department of Natural Resources. The information presented on this site is subject to the Wisconsin Department of Natural Resources' Legal Notices, Disclaimers, and Terms of Use.