Velvet Ameletid Mayfly vs Navel Orangeworm

Side-by-side species comparison

Attribute Velvet Ameletid Mayfly Navel Orangeworm
Scientific Name Ameletus velox Amyelois transitella
Order Ephemeroptera Lepidoptera
Family Ameletidae Pyralidae
Size 9-13 mm 20-28 mm wingspan
Habitat Rivers & Streams Deserts & Drylands
Diet Omnivores Omnivores
Regions North America North America
Conservation Least Concern Not Evaluated

Velvet Ameletid Mayfly

A swift-swimming mayfly of headwater streams known for its velvety-textured nymphal cuticle. Adults emerge in early summer.

💡

Did You Know?

The species name velox means swift, referring to the remarkable swimming speed of the nymphs.

Navel Orangeworm

The most damaging pest of almonds, walnuts, and pistachios in California. Larvae bore into nuts and contaminate them with frass and fungal spores.

💡

Did You Know?

It promotes aflatoxin contamination by introducing Aspergillus fungi into damaged nuts.