About Nabis flavomarginatus Scholtz, 1847
Nabis flavomarginatus Scholtz, 1847 is a species of damsel bug in the family Nabidae. This species has a Holarctic distribution. In Europe, it occurs in the North and East, and is largely absent from Southwestern and Southern Europe. In the East, its range extends across the Palearctic to Siberia, Central Asia, northern China, Japan, and Korea. In the Nearctic realm, it is common in Alaska, Canada, and Greenland. It was first recorded in the continental United States, in Maine, in 1989. In Greenland, it is the only conspicuous species of Nabidae found in the former settlement area of the Vikings; introduction of the species by Vikings during the early Middle Ages has been speculated. In Western and Central Europe, Nabis flavomarginatus is a boreomontane species, and it can be found up to 2200 meters above sea level in the Alps. Nabis flavomarginatus inhabits wet, open habitats with a high proportion of grasses (Poaceae), sedges (Cyperaceae), and rushes (Juncaceae). This species prefers lower microclimatic temperatures than most other species in the subfamily Nabinae, and it is rare in half-shady locations. Nabis flavomarginatus lives primarily in the herbaceous layer and has a non-specific prey spectrum. Cicadas are frequent prey, matching the species' habitat. This species overwinters in the egg stage. Nymphs appear starting in May, and adults are active from June or July to October depending on altitude, with activity ending as early as July at higher elevations. Only females are observed late in the year.
