''Acrobasis nuxvorella'', the pecan nut casebearer, is a moth of the family Pyralidae described by Herbert H. Neunzig in 1970."''Acrobasis'' Zeller, 1839"
at Markku Savela's ''Lepidoptera and Some Other Life Forms''. Retrieved June 15, 2017. It is found in the United States in eastern New Mexico, Texas,

Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

, Louisiana, Missouri, southern Illinois, Mississippi, Alabama, Florida, Georgia, South Carolina and North Carolina. The larva feed on ''

Carya illinoensis The pecan (''Carya illinoinensis'') is a species of hickory native to the southern United States and northern Mexico in the region of the Mississippi River. The tree is cultivated for its seed in the southern United States, primarily in Georgia ...

''. It is the most damaging insect pest of pecans in Texas. The larvae feed first on buds below the cluster, then attack the nuts. They enter the nuts by cutting a circular hole in the base. As they feed, they push

frass Frass refers loosely to the more or less solid excreta of insects, and to certain other related matter. Definition and etymology ''Frass'' is an informal term and accordingly it is variously used and variously defined. It is derived from the ...

out the hole where it accumulates. A single larva may destroy the entire cluster, before pupating in one of the last nuts fed upon.

References

Moths described in 1970 Acrobasis Moths of North America {{Acrobasis-stub