Cenopis pettitana

Distinguished from similar Cenopis and Sparganothis species by forewing coloration—C. pettitana typically shows more uniform golden-orange tones without the strong contrasting bands seen in C. reticulatana. Genitalia examination is required for definitive identification. The common name references the larval habit of rolling leaves of maple (Acer) and basswood (Tilia), which can aid in field recognition where host plants are present.

Adults are small to medium-sized tortricid moths with wings folded roof-like over the body at rest. Forewings are typically golden-yellow to orange-brown with variable darker markings. The wingspan ranges approximately 15–20 mm. Males and females are similar in appearance, with subtle differences in antennae structure.

Deciduous forests and woodlands, particularly those containing maple and basswood trees. Also found in suburban and urban areas with mature hardwood trees, including parks and residential neighborhoods.

Eastern North America, from Nova Scotia south to Florida, west to Texas. Records also extend into the Canadian prairies (Manitoba, Saskatchewan).

Adults are active primarily from late spring through summer, with peak flight periods varying by latitude. In northern portions of the range, adults fly June–August; in southern areas, the flight period extends from May through September.

Larvae feed on leaves of maple (Acer spp.) and basswood or linden (Tilia spp.), rolling or tying leaves with silk to form shelters. Adult feeding habits are not well documented.

• Acer spp. - larval hostmaple species
• Tilia spp. - larval hostbasswood or linden species

Complete metamorphosis with four stages: egg, larva, pupa, and adult. Larvae construct leaf rolls on host plants, feeding within the shelter. Pupation occurs within the leaf roll or in leaf litter. Overwintering stage is not definitively established; likely as partially grown larva or pupa. Multiple generations per year may occur in southern portions of the range.

Larvae are solitary and construct individual leaf rolls by folding or rolling leaf edges and securing them with silk. They feed within this shelter, emerging to move to new leaves as needed. Adults are nocturnal and attracted to light.

Larvae function as primary consumers, converting leaf biomass of dominant hardwood trees into insect biomass available to predators and parasitoids. The leaf-rolling habit creates temporary microhabitats that may be used by other small arthropods. Population outbreaks are rare; the species is generally not considered economically damaging.

Occasional minor pest of ornamental maples and lindens in urban settings, though damage is typically cosmetic and not economically significant. The species serves as a common subject for citizen science observation and photography due to its conspicuous coloration and association with common trees.

• Cenopis reticulatanaSimilar size and coloration, but typically shows more distinct reticulated or banded forewing pattern; genitalia differ
• Sparganothis sulfureanaFormerly congeneric; bright yellow coloration with less orange tone; different host plant associations
• Cenopis directanaOverlapping range and similar golden coloration; forewing pattern and genitalia structure differ

• leafroller
• tortricid
• maple feeder
• basswood feeder
• deciduous forest
• nocturnal
• leaf tier

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life