Panorpa planicola Byers, 1993
Diagnosis: This species is part of the rufescens species group that has one humeral 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 planicola belongs to the subgroup lacking heavy, dark spines at the apex of the male basistyles, although it has many long, thin, pale setae. Males of this species have long setae along the mesal margin of the hypovalves; long ventral parameres that extend beyond the base of the dististyles, with thick barbs along the apical half of its length, and a central sclerotized strip with membranous areas on either side.
Distribution – Geographical: This species is only found along a small coastal area of southern South Carolina.
Distribution – Temporal: Like so many other species of Panorpa in this area, there appear to be two generations per year. Because of the relatively few known specimens, emergence dates are poorly defined. This species has been collected on 28 May and from 8 October until 29 October.
Ecology: At Calisto Island this species was found on the coastal plain only a few meters above sea level, resting on honeysuckle in mixed shaded forest dominated by massive oaks festooned with Spanish moss.
Biology: Nothing is known of immature stages or life history.
Notes: This species looks much like Panorpa acuminata, but bears long setae along the mesal margin of the length of the hypovalves.
The name “planicola” comes from the Latin “planus” and “colo” meaning flat dwelling.
Byers, G.W. 1993. Autumnal Mecoptera of southeastern United States. University of Kansas Science Bulletin, 55(2):57-96.