Foliage-feeder
Guides
Acalymma vittatum
striped cucumber beetle
Acalymma vittatum, the striped cucumber beetle, is a chrysomelid beetle native to eastern North America and a serious agricultural pest of cucurbit crops. Adults and larvae both feed on host plants, with adults damaging foliage, flowers, and fruit while larvae feed on roots. The species is a vector of Erwinia tracheiphila, the causal agent of bacterial wilt, which can destroy susceptible crops. Males produce an aggregation pheromone, vittatalactone, that attracts both sexes to host plants and facilitates mate finding. The species is replaced west of the Rocky Mountains by the western striped cucumber beetle, Acalymma trivittatum.
Coleophora limosipennella
dark elm case-bearer
Coleophora limosipennella is a small case-bearing moth in the family Coleophoridae, described by Duponchel in 1843. Native to Europe with a broad distribution from Fennoscandia to the Mediterranean and east to the Baltic States and Romania, it has been introduced to North America. The species is strongly associated with elm (Ulmus) as a larval host.
Dichorda
Dichorda is a genus of emerald moths in the family Geometridae, subfamily Geometrinae. The genus was erected by Warren in 1900 and currently contains nine recognized species distributed primarily in North America. Species such as Dichorda iridaria (showy emerald moth) are known for their distinctive green coloration and are attracted to ultraviolet light at night. The genus is part of the diverse Geometridae family, commonly known as inchworm or geometer moths.
Epinotia trigonella
Birch Epinotia Moth
A small tortricid moth with a wingspan of 16–21 mm, found across Europe, the eastern Palearctic, and North America. Adults are active in late summer. The species is tightly associated with birch, with larvae feeding within folded or spun leaves.
Eupithecia misturata
Tamarack Looper
Eupithecia misturata is a small geometrid moth in the genus Eupithecia, commonly known as pugs. First described by George Duryea Hulst in 1896, it is widely distributed across western North America. The species has been documented visiting apple flowers and other flowering plants, contributing to nocturnal pollination services. Two subspecies are recognized: E. m. misturata and E. m. delzurata.
Macrodactylus subspinosus
American Rose Chafer, Rose Chafer
Macrodactylus subspinosus, commonly known as the American Rose Chafer, is a scarab beetle native to North America. It is a significant agricultural and horticultural pest that feeds on the foliage, flowers, and fruit of numerous plants, including roses, grapes, apples, and peaches. Adults emerge in late May to mid-June, live 3–6 weeks, and aggregate on host plants using plant volatiles to locate feeding sites. The species undergoes complete metamorphosis with larvae overwintering deep in soil and feeding on plant roots.
Reuterella helvimacula
Reuterella helvimacula is a species of barklouse in the family Elipsocidae, first described by Enderlein in 1901. It is characterized by brownish-orange coloration and has been documented across Europe, North America, and parts of Asia. The species is associated with a broad range of deciduous and coniferous trees.
Trichiosoma lanuginosum
Trichiosoma lanuginosum is a species of sawfly in the family Cimbicidae, a group of large, robust hymenopterans often mistaken for wasps. The genus Trichiosoma includes species associated with various deciduous trees, where larvae feed on foliage. Adults are typically encountered in spring and early summer. This species belongs to a family whose larvae are caterpillar-like herbivores, distinct from the carnivorous or parasitoid habits of many other Hymenoptera.