The giant N.A. antlion species Glenurus gratus (Say)

[vabrou]

I am currently co-authoring a 2-page species account of the resplendent giant N.A. antlion species titled 'Glenurus gratus (Say) (Neuroptera: Myrmeleontidae) in Louisiana'. Here is an adult captured at my home location, St. Tammany Parish, Louisiana. This larvae of some species of ant-lions are commonly referred to as 'doodlebugs' which produce a funnel-shaped void in loose, dry and sandy areas. These funnel-shaped areas are pitfall traps with the ant-lion larvae laying in wait under the loose sand at the bottom of the funnel apex. G. gratus larvae are reported to be found in rain protected tree holes on the trunks of large trees, especially on Quercus virginiana Mill., and not found on the ground as other 'doodlebugs'

[adamcotton]

What is the wingspan of this species?

Adam.

[vabrou]

Adam, Stange (2000) reported upon 5 N.A. Species of Glenurus.

for G. gratus, Hagen (1861) reported length base to wingtip 52 mm, and wingspan 94 mm (=3 5/8 inches). No doubt a more generous wingspan study is warrented.

[adamcotton]

That is quite large. The larger species I have seen in SE Asia are at least 10cm across, probably more.

Adam.