Aspilanta

Distinguished from the closely related genus Antispila by reduced wing venation. Within Heliozelidae, Aspilanta can be separated from Coptodisca (its sister genus) and other genera using Nearctic genus keys. Species-level identification requires examination of genitalia and often host plant association.

Associated with woody host plants in temperate and subtropical regions. Larvae inhabit leaf mines on living leaves of vines and shrubs.

Native to North America and Central America; possibly extending to South America. Aspilanta oinophylla is established as an invasive species on grapevine in Italy.

Larvae feed on leaf tissue of host plants. Most species specialize on Vitaceae; Aspilanta hydrangaeella feeds on Hydrangea species (Hydrangeaceae), and Aspilanta argentifera feeds on Myricaceae.

• Vitaceae - primary host familymost species
• Hydrangeaceae - hostA. hydrangaeella on Hydrangea
• Myricaceae - hostA. argentifera

Eggs are inserted into leaf tissue. Larvae develop as leaf miners, creating mines that may begin as narrow linear tracks widening into blotches or start directly as blotches. All frass remains within the mine. Mature larvae cut an elliptical shield-shaped case from the leaf surface, descend to the ground, and pupate within this case. Some species overwinter as pupal cases.

Adults are presumably diurnal or crepuscular given family tendencies, but specific activity patterns are unreported. Larval behavior is constrained to feeding within leaf mines; mature larvae exhibit case-cutting behavior for pupation.

Leaf miners on woody plants. Serve as hosts to parasitoid wasps including Chalcidoidea, Braconidae (Microgastrinae), and Eulophidae.

Aspilanta oinophylla is an invasive pest on cultivated grapevine (Vitis) in Italy, potentially impacting viticulture. Other species have minimal direct economic impact.

• AntispilaHistorically confused with Aspilanta; distinguished by more complete wing venation and different forewing pattern elements.
• CoptodiscaSister genus to Aspilanta; separation requires examination of wing venation and genitalia.

• leaf miner
• grape pest
• invasive species
• North America
• Heliozelidae
• Vitaceae
• shield-bearer moth

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Splitting the leafmining shield-bearer moth genus Antispila Hübner (Lepidoptera, Heliozelidae): North American species with reduced venation placed in Aspilanta new genus, with a review of heliozelid morphology