Panorpa acuminata  Byers, 1993


Diagnosis:  This species is part of the rufescens group that has one marginal spot along the base of the forewing costal margin and shading along many of the distal crossveins; males with narrow hypovalves;  and dististyles with a basal lobe that is apically truncate and bears a row of spines along the dorsal margin.  The ventral parameres have lateral props to the inner wall of the basistyles.  Panorpa acuminata belongs to a subgroup of species with no dark, thick spines at the inner apex of the basistyles.  This species can be separated from others of the group by the shape of the ventral parameres that reach the base of the dististyles, are parallel to each other, and have a long row of thick spines halfway down the mesal margin of each.


Distribution – Geographical:  This species is only known from the northern half of Georgia.


Distribution – Temporal:  Adults have been collected from 27 April until early June and 1 September until 3 October, clearly demonstrating a bimodal emergence and probably indicating two generations per year.  There have been a couple of records from between the two emergence periods.


Ecology:  The type series was collected on honeysuckle in a mixed woodland of pine, oak, hickory, red gum, and dogwood.  There was very little green briar, brambles, and poison ivy such as is found in most habitats where southern Panorpa are collected.


Biology:  Nothing is known of immature stages or life history.


Notes:  The name acuminata comes from the Latin for tapered to a slender point.  This species appears to be very similar to Panorpa pachymera.  The main difference between the species appears to be the heavy spines at the apex of the basistyles of P. pachymera.




Byers, G.W. 1993. Autumnal Mecoptera of southeastern United States. University of Kansas Science Bulletin, 55(2):57-96.



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