Pediasia trisecta

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Panorpida
Cladus: Amphiesmenoptera
Ordo: Lepidoptera
Subordo: Glossata
Cladus: Coelolepida
Cladus: Myoglossata
Cladus: Neolepidoptera
Infraordo: Heteroneura
Cladus: Eulepidoptera
Cladus: Ditrysia
Cladus: Apoditrysia
Cladus: Obtectomera
Superfamilia: Pyraloidea

Familia: Crambidae
Subfamilia: Crambinae
Tribus: Crambini
Genus: Pediasia
Species: Pediasia trisecta
Name

Pediasia trisecta (Walker, 1856)
Vernacular names
English: Sod Webworm

Pediasia trisecta, the large sod webworm or greater sod webworm, is a moth of the family Crambidae. It is found in the United States and southern Canada.[2]

The wingspan is 23–33 mm. Adults are on wing from May to October. Adults feed solely on dew.

The larvae feed on various Poaceae species. They overwinter as young larvae in silk-lined tubes under the soil. In early spring, they feed on the upper root systems, stems and blades of their host plant from under protective silken webs. Pupation takes place in May in underground silken cocoons. These cocoons incorporate bits of plants and soil.
References

"World Pyraloidea Database". Globiz.pyraloidea.org. Retrieved 2011-10-10.
Contributed by Robin McLeod on 7 June 2006 - 1:54am (2006-06-07). "Bug Guide". Bug Guide. Retrieved 2011-10-10.