Grape Flower Plume Moth - Hodges#6090
Sphenarches ontario
This record describes Sphenarches ontario (species). Recorded family: Pterophoridae. Recorded order: Lepidoptera.
Identification and Appearance

See the identification key for Oxyptilini . See the species accounts in Landry , Landry , and McDunnough as Pterophorus ontario . Sphenarches ontario adults have: a forewing second lobe that is broader with a well developed, curved outer margin, as in Sphenarches anisodactylus , Geina , Capperia , and Oxyptilus , rather than narrow with an acute apex, as in Buckleria , Dejongia , Trichoptilus , and Megalorhipida . a brown and unmarked abdominal segment four, as in Geina , and unlike in Capperia and Oxyptilus . a mostly brown metathorax, as in Geina periscelidactylus and G. sheppardi , rather than the metathorax having large, white lateral patches, as in Geina tenuidactylus and G. buscki , or having white lines on the metathorax and and on the mesothorax connecting the white tegulae, as in Sphenarches anisodactylus , Oxyptilus delawaricus , and Capperia . tawny brown ground color in the wings and abdomen, as in Geina periscleidactylus and G. sheppardi and Oxyptilus delawaricus , unlike the darker, chocolate brown ground color of Geina tenuidactylus , G. buscki , and Capperia . a dark triangular patch before the cleft base, unlike the dark, transverse line before the cleft base in Geina periscelidactylus and G. sheppardi . a dark scale tooth well developed in both the costal and dorsal fringes of the hindwing third lobe, as in Geina , and unlike in Sphenarches anisodactylus (dark scale tooth developed mostly in dorsal fringe).
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Lepidoptera (Butterflies and Moths)
- Superfamily
- Pterophoroidea
- Family
- Pterophoridae (Plume Moths)
- Subfamily
- Pterophorinae
- Tribe
- Oxyptilini
- Genus
- Sphenarches
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
About Butterflies and Moths: the wider group
Order-level background for Lepidoptera, the group containing Sphenarches ontario. Species-specific details appear above.
Group overview
Lepidoptera includes approximately 180,000 described species of butterflies and moths. Moths outnumber butterflies roughly 10:1. The monarch butterfly's eastern population has declined by more than 80% since the mid-1990s, and the western population by over 95% since the 1980s. The IUCN lists the migratory monarch as Vulnerable.
Ecological role of the group
Butterflies and moths are essential indicators of ecosystem health. As caterpillars, they are a primary food source for birds - a single nest of blue tit chicks requires ~10,000 caterpillars. Adult moths pollinate many night-blooming plants.
Economic and practical significance of the group
Lepidoptera are critical pollinators. In Europe, grassland butterfly species have declined by almost 50% since the early 1990s. In the UK, three-quarters of butterflies are in decline. In the U.S., five butterfly species have gone extinct since 1950, with 29 listed as endangered.
Recorded sources for this group: IUCN Red List, Xerces Society, USFWS, PNAS, WWF. Imported estimates may describe particular regions or reporting periods.
Photos of Grape Flower Plume Moth - Hodges#6090 (5)
Photo credits: Contributed by Tom Bentley; Additional contributions by Ted Kropiewnicki , treichard
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