Hypericum
Guides
Acleris maculidorsana
stained-back leafroller moth
Acleris maculidorsana, commonly known as the stained-back leafroller moth, is a small tortricid moth native to eastern North America. Adults are active nearly year-round in southern portions of its range. The species is associated with several woody and herbaceous host plants, including members of Ericaceae, Hypericaceae, and Ericaceae. Larvae are leafrollers that feed on foliage of their host plants.
Agonopterix hyperella
Agonopterix hyperella is a small moth in the family Depressariidae, described by Charles Russell Ely in 1910. It is known from the eastern United States, with records from Alabama, Indiana, Maryland, Massachusetts, North Carolina, Ohio, and Tennessee. The species is associated with Hypericum (St. John's wort) as a larval host plant, with larvae feeding on Hypericum prolificum and Hypericum perforatum.
Caloptilia hypericella
A small leaf-mining moth in the family Gracillariidae with a wingspan of approximately 8 mm. The species is specialized on Hypericum (St. John's wort) host plants, with larvae creating blotch mines in leaves. It occurs in eastern North America from Québec to the Ohio River Valley.
Chrysolina quadrigemina
greater St. John's wort beetle, St. John's wort beetle
Chrysolina quadrigemina is a leaf beetle introduced to North America as a biological control agent for the invasive weed Hypericum perforatum (St. John's wort). Native to Europe and North Africa, this beetle has established populations across western North America and has been introduced to Australia. Adults and larvae feed exclusively on Hypericum species, with documented spillover onto native congeners such as H. punctatum in the eastern United States. The beetle exhibits a univoltine life cycle with adults active in summer, and shows evidence of post-colonization adaptation to colder climates in northern populations.
Fomoria septembrella
Hypericum Pigmy
Fomoria septembrella is a minute moth in the family Nepticulidae, commonly known as the Hypericum Pigmy. The species was originally described as Ectoedemia septembrella by Stainton in 1849 and later transferred to the genus Fomoria by Beirne in 1945. It is a leaf-mining species associated with Hypericum (St. John's wort) host plants. The moth is widely distributed across Europe and extends into the eastern Palearctic and Near East.