Arivaca ostreella

The species can be distinguished from similar Phycitinae moths by its geographic restriction to the southwestern United States (southern Arizona, New Mexico, and Texas) and its July flight period. The genus Arivaca is distinguished from related genera by genitalic characteristics, though these require microscopic examination. The specific epithet 'ostreella' suggests possible association with oyster plant or related host plants, though this has not been confirmed.

Adults have a wingspan of approximately 25 mm. As a member of the snout moth family Pyralidae, it possesses the characteristic elongated labial palps that project forward from the head. Specific coloration and wing pattern details are not well documented in available sources.

Occurs in arid and semi-arid regions of the southwestern United States, including desert and scrubland environments in southern Arizona, New Mexico, and Texas. Specific microhabitat preferences are not documented.

Endemic to the southwestern United States. Documented from southern Arizona through New Mexico to Texas. No records from Mexico or other regions have been confirmed.

Adults are active in July. No information available regarding larval activity periods or voltinism.

• Other Arivaca speciesThe genus Arivaca contains multiple species that are morphologically similar and require genitalic dissection for reliable identification. A. ostreella is distinguished by its specific geographic range and flight period.
• Phycitinae gen. spp.Many small pyralid moths in the subfamily Phycitinae share general appearance and size. Identification to species level requires examination of diagnostic characters including genitalia.

• Pyralidae
• Phycitinae
• snout moth
• southwestern United States
• desert fauna
• summer flight
• data deficient

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life