''Crambus praefectellus'', the common grass-veneer or silver-striped webworm, is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of ...

of the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Crambidae The Crambidae are the grass moth family of lepidopterans. They are variable in appearance, the nominal subfamily Crambinae (grass moths) taking up closely folded postures on grass stems where they are inconspicuous, while other subfamilies includ ...

described by

Johann Leopold Theodor Friedrich Zincken Julius Leopold Theodor Friedrich Zincken or ZinkenDr. Jul. Leop Theod. Friedr. Zinken genannt Sommer (1757D. A. M. Beitrag zur Insecten-fauna von Java ''Nova Acta Physico-Medica'' also Sommer (15 April 1770 in Braunschweig – 8 February 1856 in B ...

in 1821. It is found in the United States and southern

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tota ...

east of the

Rocky Mountains The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in straight-line distance from the northernmost part of western Canada, to New Mexico in ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan ...

is 18–25 mm. Adults are on wing from May to September in the north, from April to October in the mid latitudes and probably year round in southern Florida and Texas. The larvae feed on various

grass Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in law ...

es and cereal grains.

References

Moths described in 1821 Crambini Moths of North America {{Crambini-stub