North-american-origin
Guides
Anisotoma
slime mold beetles, round fungus beetles
Anisotoma is a genus of small beetles in the family Leiodidae, commonly known as slime mold beetles or round fungus beetles. The genus contains at least 20 described species, with six monophyletic species groups comprising 35 known species including 13 described in a 1979 revision. These beetles are specialized associates of slime molds (Myxomycetes). The genus originated in North America from a Holarctic common ancestor shared with the related genus Agathidium, subsequently dispersing to Palearctic and Central American regions.
Chrysaster ostensackenella
A small leaf-mining moth in the family Gracillariidae, native to eastern North America and recently established as an invasive pest in East Asia, Europe, and Russia. Adults have a wingspan of approximately 4–5 mm. Larvae feed exclusively on Robinia species, creating distinctive blotch mines on leaves. The species has spread rapidly through human-mediated transport of host plants and is expected to expand further in regions where black locust is planted.
Hannabura alnosa
Hannabura alnosa is a species of aphid in the family Aphididae, originally described as Calaphis alnosa by Pepper in 1950. It belongs to the subfamily Calaphidinae and tribe Calaphidini. The specific epithet "alnosa" suggests an association with alder (Alnus), though this relationship requires confirmation from primary sources.
Reesa vespulae
Undertaker Carpet Beetle
Reesa vespulae is a small parthenogenetic dermestid beetle native to North America that has become a cosmopolitan pest of heritage collections and stored products. The species spreads globally through human commerce and can establish populations from a single female due to obligate parthenogenesis. It poses significant threats to museums, herbaria, and entomological collections, with larvae showing particular preference for Coleoptera and Lepidoptera specimens.