Gomphaeschna Selys, 1871 - Darners
Gomphaeschnafurcillata (Say, 1839) - Harlequin Darner

Notes -References
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Page last updated: 25September 1998 (EB)

Notes onGomphaeschnafurcillata inMichigan

A genus of two species endemic to eastern NorthAmerican, only one widely-distributed species - G. furcillata - is foundin Michigan. The only record in the LP is from Wayne Co., and isthought to be dubious (Kormondy 1958). However, recent collecting of adults in the UP haveadded numerous records (O'Brien 1997, Tennessen and Hudson1997, Map 1).


Map 1: County distribution ofGomphaeschnafurcillata in Michigan
Click on map for a larger image

Little is known about larval ecology or habitatof this species in Michigan, and no larval records are known from thestate. Based on proximity of collected adults, both in Michigan andWisconsin, larvae probably reside in densely wooded wetland or alderswamp habitats (see Tennessen 1992). Dunkle (1977) described habitat, rearing and emergence of larvae fromswamps in Delaware and Flordia, and revised Walker's (1958) larval description. Only recently have larvae beendescribed (see Needham and Westfall1955), and specimens of larvae andexuvia have been difficult to find. The V-shaped notch of the medianlobe of the prementum with its plumous-fringed anterior margin aswell as the very long, 6-segmented antennae (about equal to thelength of the head) clearly distinguish this species from otherMichigan aeshnid larvae. Emergence has not been described, but basedon collection of adults is probably late-May or early-June(Tennessenand Hudson 1997). Kennedy (1936) provides detailed information about femaleovipositioning from a bog near Ithaca, New York, as well as egg andearly larval development in the lab.

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References

Dunkle, S. W. 1977. Larvae of the genus Gomphaeschna (Odonata:Aeshnidae). The FloridaEntomologist 60(3):223-225.

Kennedy, C. H.1936. The habits and early stages of the dragonfly, Gomphaeschna furcillata(Say). Proceedings of the IndianaAcademy of Science 45:315-322.

Kormondy, E. J.1958. Catalogue of the Odonata of Michigan. Miscellaneous Publications of the Museum of Zoology,University of Michigan 104. 43pp.

Needham, J.G., and M. J. Westfall. 1955. A manual of the dragonflies of NorthAmerica (Anisopter), including the Greater Antilles and the provincesof the Mexican border. University of California Press: Berkeley. xii+ 615 pp.

O'Brien, M. 1997.Surveying for Odonata in the Huron Mountains in 1996. Williamsonia1(1):4.

Say, T. 1839.Descriptions of new North American neuropterous insects andobservations on some already described by (the late) Th. Say.Journal of the Academy of NaturalScience of Philadelphia 8:9-46.

Selys-Longchamps, E.de. 1871. Aperçu statistique sur les NévroptèresOdonates. Transactions of theEntomological Society of London19:409-416.

Tennessen, K. J.1992. First records of Gomphaeschnafurcillata and Anax longipes in Wisconsin(Odonata: Aeshnidae). The Great Lakes Entomologist25(4):305-306.

Tennessen,K., and P. Hudson. 1997. More records of Gomphaeschna furcillata inthe U.P. Williamsonia 1(3):2.

Walker, E. M. 1958.The Odonata of Canada and Alaska, Vol. 2. University of TorontoPress: Toronto. xi + 318 pp.

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