Pyractomena dispersa    



habitat
No information available.

seasonality
Specimens present in the Strickland Museum were collected in mid June.

identification
Pyractomena dispersa (8-12.5mm long) at a glance closely resembles P. borealis, and like the larger species can be distinguished from all other Alberta lampyrids by the presence of light organs on the ventral abdomen of both the males and females. Female light organs are restricted to the edges of these abdominal segments. It can be distinguished from P. borealis by the secondary pubescence on the dorsal surface of the elytra. While longer primary pubescence sparsely covers the entire elytra of P. dispersa, the very small hairs comprising the secondary pubescence cover only the apical quarter of each elytron, making more of the elytra appear glabrous than in P. borealis. The pubescence may extend a little further along the elytral suture.

life history
No information available.

conservation
No information available.

diet info
The larvae of P. dispersa may feed on snails, like those of P. borealis (Archangelsky 1999) and P. lucifera (Arnett 2001), an eastern Pyractomena species.

range
Pyractomena dispersa occurs in central Alberta. In North America, it has been collected in scattered states and provinces, ranging from the Northwest Territories to Alabama, and from Maine to Idaho and Utah (Green 1957).

people
species page authorHummel, J. D.2004 

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=5430

 

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