Ragweed-feeder
Guides
Bucculatrix transversata
Bucculatrix transversata is a minute moth in the family Bucculatricidae, first described by Annette Frances Braun in 1910. It is known only from California, with a wingspan of approximately 7 mm. The species is associated with Ambrosia psilostachya (western ragweed), on which its larvae feed. Adults are active in July, with larval development occurring in October.
Helcystogramma chambersella
Chambers' Twirler
Helcystogramma chambersella is a small gelechiid moth with a forewing length of 3.5–5 mm. The species is native to North America and has been recorded across a broad geographic range from Pennsylvania to California. Larvae feed on ragweeds (Ambrosia species), while adults are active from spring through late summer.
Ophraella bilineata
Skeletonizing leaf beetle
Ophraella bilineata is a species of skeletonizing leaf beetle in the family Chrysomelidae. The species is characterized by its distinctive striped elytra and is found across North America. As a member of the Galerucinae subfamily, it exhibits the typical leaf beetle morphology with compact body form and herbivorous feeding habits.