Presence of populations of antlions (Neuroptera: Myrmeleontidae) in Denmark correlates with presence of aeolian sand Author Petersen, Nicholas Hüsig Author Nielsen, Ole Fogh Author Vilhelmsen, Lars text Journal of Natural History 2022 2022-02-11 55 45 - 46 2831 2847 journal article 20610 10.1080/00222933.2022.2028029 029062d8-2155-41cf-a042-b293d45c5bd1 1464-5262 6127595 Euroleon nostras (Geoffroy in Fourcroy, 1785) The imago of E. nostras is of the same size as M. bore , with a forewing length of 25– 33 mm . The presence of several dark spots on the wings of E. nostras makes it easily recognisable, as they are absent from the other Danish antlion species ( Figures 1 (c) and 2). E. nostras is without bright spots on the dorsal side of prothorax, and neither the males nor females have Eltringham’s organ ( Nielsen 2015 ). The larva is reddish brown, the ventral side of the head is pale and with several spots, a pair of elongated dark markings near the median, with another pair of dark spots beneath. The labial palp is four-segmented, and the hind legs are without dark spots. The distal half of the 8th abdominal sternite is covered by two types of structures – a few black spines and numerous bristles ( Friheden 1973 ; Badano and Pantaleoni 2014 ).