Wisconsin Odonata Survey

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Williamsonia fletcheri  Williamson, 1923
Ebony Boghaunter


Corduliidae, Emerald Family

The boghaunters are the smallest emeralds in the family with little metallic coloration. Their bodies are thinly haired. The abdomens in males are constricted just below the bases. The boghaunters are rare inhabitants of northeastern bogs, with two species in North America.

Status-Global/State:

Global: G4     Wisconsin: S3S4    

Distinguishing Characteristics:

This small black dragonfly is one of the rarer emeralds. The body varies from 1.1 to 1.4 inches in the length. The abdomen has white rings near the base of the abdomen. The face is dark brown with bright green eyes for males and gray eyes for females. The ebony boghaunter is similar to the ringed boghaunter. However, the ringed boghaunter has orange rings on most of its abdomen and an orange-brown face.

Description of Habitat/Range:

Not common throughout northeastern United States and southeastern Canada, it prefers forested sphagnum bog pools and fens, often the same places as the ringed boghaunter.

Flight Season:

Early May to early July in Wisconsin. The flight season tends to be short, depending on its locations.


Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
1%
(2)
48%
(79)
47%
(77)
2%
(4)
1%
(1)
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 ebony boghaunter
Male ebony boghaunter. © Dan Jackson

Male ebony boghaunter
Photo of Male ebony boghaunter
Male ebony boghaunter. © Mark Pleyte

Male ebony boghaunter
Photo of Female ebony boghaunter
Female ebony boghaunter. © Dan Jackson

Female ebony boghaunter
Photo of Female ebony boghaunter
Female ebony boghaunter. © Dan Jackson

Female ebony boghaunter
Photo of Female ebony boghaunter
Female ebony boghaunter. © Dan Jackson

Female ebony boghaunter
Photo of Ebony boghaunter pair
Ebony boghaunter pair. © Dan Jackson

Ebony boghaunter pair



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