Trans-beringian-distribution
Guides
Lebradea flavovirens
Lebradea flavovirens is a species of leafhopper in the family Cicadellidae, subfamily Deltocephalinae. First described from Colorado by Gillette and Baker in 1895, it was originally placed in the genus Deltocephalus before transfer to Lebradea. The species occurs across western North America and extends into northeastern Asia. Like other members of its tribe Paralimnini, it inhabits moist or wetland-associated habitats.
Xyela bakeri
Xyela bakeri is a Nearctic sawfly species in the family Xyelidae, first described by Konow in 1898. It belongs to the X. bakeri species group, which includes the Japanese X. fusca and an undescribed Chinese species—one of only two Xyela groups with trans-Beringian distributions. The species is endemic to North America with records spanning from Quebec to Florida and west to British Columbia, California, and the Yukon Territory. Larvae develop as internal feeders in pine cones, with documented hosts including multiple Pinus species in subgenus Pinus.