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Species Blastobasis glandulella - Acorn Moth - Hodges#1162

acorn moth - Blastobasis glandulella Acorn Moth - Blastobasis glandulella Acorn Moth - Hodges #1162 - Blastobasis glandulella  Hodges#0392 - Blastobasis glandulella Blastobasis glandulella Acorn Moth - Blastobasis glandulella Acorn Moth - Blastobasis glandulella Acorn Moth - Hodges #1162 - Blastobasis glandulella
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Gelechioidea (Twirler Moths and kin)
Family Blastobasidae (Scavenger Moths)
Subfamily Blastobasinae (Scavenger Moths)
Tribe Blastobasini
Genus Blastobasis
Species glandulella (Acorn Moth - Hodges#1162)
Hodges Number
Synonyms and other taxonomic changes
Valentinia glandulella (misspelled "Valentina glandulella" on numerous websites)
According to Jean-Francois Landry, the valid combination is Blastobasis glandulella (Riley, 1871). The generic name Valentinia Walsingham, 1907 is a junior synonym of Blastobasis Zeller, 1855. (pers. comm. RM)
one of 11 species of Blastobasis in North America, listed under Coleophoridae: Blastobasinae at All-Leps
wingspan 15-25 mm (1)
The only sure way to identify this and most other Blastobasidae is by microscopic examination of the genitalia or by DNA barcoding and even those methods may not result in a species identification since there are many undescribed species in North America.

Adult: forewing gray to grayish-brown with pale diffuse AM line bordered distally by dark band (sometimes absent); 1 black median dot and 2 black reniform dots form a triangle; terminal line composed of dark dots; hindwing shiny gray with dark veins and fringe of long hair-like scales.
eastern United States and southern Ontario; also occurs in California
adults fly from April to September (1)
larvae feed inside acorns and chestnuts (1)
described in 1871 by Riley, who originally placed it in genus Gelechia
Internet References
adult images plus common name reference, flight season, and larval food (Larry Line, Maryland)
6 pinned adult images and collection site map (All-Leps)
pinned adult image and photos of related species by Jim Vargo (Moth Photographers Group)
presence in Florida, list (John Heppner, Florida State Collection of Arthropods)
presence in Texas; list (Dale Clark, Texas)
presence in California; 7 collected specimens plus locations and dates (U. of California at Berkeley)
presence in Ontario; list (NHIC; Ontario Ministry of Natural Resources)
classification history of Blastobasis and Valentinia showing placement in Blastobasidae by Nye and Fletcher, 1991, and placement in Coleophoridae by Hodges in Kristensen, 1999 (Butterflies and Moths of the World)
Works Cited
1.Field Guide to Moths of Eastern North America
Charles V. Covell, Jr. 2005.