Pyromorpha latercula

Distinguished from the similar-looking tiger moth Lycomorpha pholus by the black hind margin of the forewing and earlier adult phenology—P. latercula appears earlier in the season than L. pholus, which does not emerge until late summer. Both species participate in the same Müllerian mimicry complex with lycid beetles, requiring careful examination for positive identification.

Adults display black-and-orange or reddish-orange aposematic coloration characteristic of the lycid mimicry complex. Wing patterning includes contrasting dark and bright areas. The overall appearance closely resembles that of net-winged beetles in the genus Calopteron.

Associated with oak forests, particularly mature white oak (Quercus alba) stands. The presence of leaf litter, especially from oak species, appears to be a key habitat component supporting larval development.

Documented from Missouri, USA; specific locality records include Reifsnider State Forest, Warren County. Broader distribution within North America requires additional documentation.

Adults active in spring to early summer, appearing earlier than the phenologically later Lycomorpha pholus.

Larvae feed on leaf litter, particularly decomposing oak leaves.

• Quercus alba - larval habitat associationMature white oak forest documented as collection site; leaf litter from oaks serves as larval food source

Participates in a Müllerian mimicry complex with net-winged beetles (family Lycidae), where multiple toxic species share similar aposematic coloration to reinforce predator avoidance learning. The species' autonomous production of hydrogen cyanide contributes to this mutualistic defensive association.

• Lycomorpha pholusShares black-and-orange coloration and participates in same Müllerian mimicry complex; distinguished by forewing hind margin color and later adult phenology
• Calopteron terminaleNet-winged beetle model in the mimicry complex; convergent aposematic coloration makes visual separation difficult without close examination of antennae, wing venation, and body form

• mimicry
• aposematism
• cyanogenesis
• oak-associated
• leaf-litter-feeder

• BugGuide
• iNaturalist taxon
• NCBI Taxonomy
• Pyromorpha dimidiata | Beetles In The Bush