''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 of Lepidoptera in the ditrysian superfamily Pyraloidea. In many (particularly older) classifications, the grass moths (Crambidae) are included in the Pyralida ...

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 pyralid moths. He is als ...

in 1887, and is known from southeastern

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...

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 tot ...

, 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 around 18 species. Five or six species are native to China, Indochina, and India (Assam), as many as twelve are native to the United States, four are found in Mexi ...

'' and ''

Juglans Walnut trees are any species of tree in the plant genus ''Juglans'', the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts. All species are deciduous trees, tall, with pinnate leaves , with 5–25 leaflets; t ...

'' 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