Unadilla bidensana

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Unadilla bidensana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Pyralidae
Genus: Unadilla
Species:U. bidensana
Binomial name
Unadilla bidensana
(Swezey, 1933)
  • Hornoeosoma bidensanaSwezey, 1933

Unadilla bidensana is a moth of the family Pyralidae described by Otto Herman Swezey in 1933. It is endemic to the Hawaiian island of Kauai.

Moth Group of mostly-nocturnal insects in the order Lepidoptera

Moths comprise a group of insects related to butterflies, belonging to the order Lepidoptera. Most lepidopterans are moths, and there are thought to be approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal, but there are also crepuscular and diurnal species.

Pyralidae Family of moths

The Pyralidae, commonly called pyralid moths, snout moths or grass moths, are a family of Lepidoptera in the ditrysian superfamily Pyraloidea. In many classifications, the grass moths (Crambidae) are included in the Pyralidae as a subfamily, making the combined group one of the largest families in the Lepidoptera. The latest review by Eugene G. Munroe & Solis, in Kristensen (1999) retains the Crambidae as a full family of Pyraloidea.

Kauai Island of the Hawaiian Island Chain

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The larvae feed on Bidens cosmoides . They bore in the stems of their host plant. The infested stems become swollen and gall-like. Pupation takes place within this swelling.

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Bidens cosmoides, commonly known as the cosmosflower beggarticks, is a species of flowering plant in the sunflower family. It is endemic to mixed mesic forests at elevations of 2,000–3,000 ft (610–910 m) on the island of Kauaʻi in Hawaii. This particular member of the genus Bidens is far larger than its relatives and is pollinated by birds.

Gall insect-induced growth on plant

Galls or cecidia are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from viruses, fungi and bacteria, to other plants, insects and mites. Plant galls are often highly organized structures and because of this the cause of the gall can often be determined without the actual agent being identified. This applies particularly to some insect and mite plant galls. The study of plant galls is known as cecidology.

Elwood Curtin Zimmerman was an American entomologist best known for his two multivolume series: Insects of Hawaii published by the University of Hawaiʻi Press and Australian Weevils published by Australia's CSIRO.

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