Pyromorpha
Herrich-Schäffer, 1854
orange-patched smoky moths, leaf-skeletonizer moths
Species Guides
4- Pyromorpha caelebs
- Pyromorpha dimidiata(Orange-patched Smoky Moth)
- Pyromorpha dyari
- Pyromorpha latercula
Pyromorpha is a of zygaenid known as leaf-skeletonizer moths. in this genus possess aposematic black and orange coloration and contain hydrogen cyanide at all life stages, which they synthesize rather than sequester from plants. The genus participates in Müllerian mimicry complexes with net-winged beetles ( Lycidae), particularly Calopteron terminale. At least one species, P. dimidiata, has larvae that feed on leaf litter, especially oak leaves.
Pronunciation
How to pronounce Pyromorpha: /ˌpaɪ.roʊˈmɔːr.fə/
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Identification
have black forewings with orange or yellow-orange patches; the forewing has a distinct black hind margin. Similar appearance to Lycomorpha pholus (black-and-yellow lichen moth, Erebidae), but distinguished by the black hind margin of the forewing and earlier seasonal activity. Also resembles net-winged beetles (family Lycidae) such as Calopteron terminale, requiring close examination to separate from .
Images
Habitat
Mature oak forests, particularly white oak (Quercus alba) stands. Associated with areas where oak leaf litter accumulates.
Distribution
Eastern North America. Documented from Missouri and Vermont, United States.
Seasonality
active in spring and early summer; earlier than Lycomorpha pholus, which appears in late summer.
Diet
Larvae feed on leaf litter, especially oak leaves.
Host Associations
- Quercus alba - larval associationwhite oak leaf litter
Ecological Role
Member of Müllerian mimicry complex with lycid beetles; both model and mimic are chemically defended with hydrogen cyanide.
Human Relevance
None documented.
Similar Taxa
- Lycomorpha pholusSimilar black-and-orange aposematic coloration; distinguished by forewing black hind margin and earlier (P. dimidiata appears spring-early summer, L. pholus late summer). Unrelated tiger moth in Erebidae.
- Calopteron terminaleNet-winged beetle ( Lycidae) that shares color pattern through Müllerian mimicry; has hardened forewings () and different antennal structure.
More Details
Chemical defense
All life stages contain hydrogen cyanide, which is manufactured by the rather than obtained from plants (Scoble 1992).
Taxonomic status
GBIF lists Pyromorpha as a synonym of Malthaca, while Catalogue of Life and other sources treat it as accepted. The is placed in Procridinae, tribe Procridini.