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Species Fissicrambus intermedius - Hodges#5432

Moth - Fissicrambus intermedius Moth - Fissicrambus intermedius Fissicrambus intermedius Fissicrambus intermedius Arizona Moth  - Fissicrambus intermedius Fissicrambus intermedius Fissicrambus intermedius Fissicrambus intermedius
Show images of: caterpillars · adults · both
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Pyraloidea (Pyralid and Crambid Snout Moths)
Family Crambidae (Crambid Snout Moths)
Subfamily Crambinae (Crambine Snout Moths)
Tribe Crambini (Grass-Veneers)
Genus Fissicrambus
Species intermedius (Fissicrambus intermedius - Hodges#5432)
Hodges Number
5432
Synonyms and other taxonomic changes
Fissicrambus intermedius (Kearfott, 1908) (1)
Crambus intermedius Kearfott, 1908
Size
Kearfott (1908) listed the wingspan 16-20 mm.
Identification
Kearfott's (1908) original description as Crambus intermedius is online (see below). Kearfott describes the rich buff-orange color ("dark ochreous") of the FW between the white streak and the costal margin. The white streak widens from the base to the "middle", narrowing rather abruptly outward, and splitting at the end of the cell to become just white vein streaks extending to the outer margin. Identified examples of F. intermedius on MPG, BG, BOLD, and iNaturalist apparently lack any of the smudgy dark spots above the white stripe routinely seen on other species such as F. profanellus and F. quadrinotatus.
Range
Southern California(2) to Texas. (3)
Type localities: USA: "Arizona"; Texas, Burnet Co.
Moth Photographers Group - large map with some distribution data.
Season
Most records of adults are from March to May; August to October. (3)
Food
Unknown.
Remarks
Kearfott (1908, p. 383) noted some size and color differences in the examples he studied from Arizona and Texas but concuded that the Texas specimens were just "darker varieties" of the same species. BOLD barcode results on a small sample show very limited divergence between Arizona and Texas specimens for the COI gene.
Bleszynski (1963)(1) said of this genus: "Externally nearly all the species of this genus are practically indistinguishable from each other, being sometimes distinct only on size. The study of this genus is only provisional, many questions are still unsolved." At the time, Bleszynski thought F. intermedius might be synonymous with F. profanellus but he had not examined Kearfott's types. Specimens and images accumulated since that time, as well as barcoding results, suggest these are distinct species.
See Also
Compare to related species on the pinned plates of Moth Photographers Group.
Print References
Kearfott, W.D. 1908. Descriptions of new species of North American Crambid moths. Proceedings of the United States National Museum 35: 382.