''Acrobasis caryivorella'', the pecan nursery casemaker, is a species of

snout moth The Pyralidae, commonly called pyralid moths, snout moths or grass moths, are a family (biology), family of Lepidoptera in the ditrysian Taxonomic rank, superfamily Pyraloidea. In many (particularly older) classifications, the grass moths (Cramb ...

in the genus ''

Acrobasis ''Acrobasis'' is a genus of moths of the family Pyralidae.

''. It was described by

Émile Louis Ragonot Émile Louis Ragonot (12 October 1843 – 13 October 1895) was a French entomologist. In 1885, he became president of the ''Société entomologique de France''. He named 301 new genera of butterflies and moths, mostly Pyralidae, pyralid moths. ...

in 1887, and is known from southeastern

Ontario Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

, and the eastern United States. There are two to four generations per year. The larvae feed on ''

Carya Hickory is a common name for trees composing the genus ''Carya'', which includes 19 species accepted by ''Plants of the World Online''. Seven species are native to southeast Asia in China, Indochina, and northeastern India (Assam), and twelve ...

'' and ''

Juglans Walnut trees are any species of tree in the plant genus ''Juglans'', the type genus of the family (biology), family Juglandaceae, the seeds of which are referred to as walnuts. All species are deciduous trees, tall, with pinnate leaves , with ...

'' species. Larvae of the first generation bore into the new growth of their host plant. The species overwinters in the larval stage. Larvae of the following generation hollow out the interior of the nut and pupate within.

References

Moths described in 1887 Acrobasis Moths of North America {{Acrobasis-stub