Throat Bot Fly of Horses vs Oregon Tiger Beetle

Side-by-side species comparison

Attribute Throat Bot Fly of Horses Oregon Tiger Beetle
Scientific Name Gasterophilus nasalis Cicindela oregona
Order Diptera Coleoptera
Family Oestridae Cicindelidae
Size 11-15 mm 11-15 mm
Habitat Farmland Rivers & Streams
Diet Omnivores Omnivores
Regions Worldwide wherever horses are kept Western North America from Alaska to California
Conservation Least Concern Least Concern

Throat Bot Fly of Horses

A yellowish-brown bot fly that lays eggs under the jaw of horses. Larvae migrate to the area between the teeth and gums before traveling to the pyloric region of the stomach and duodenum. It is one of the most common horse bot flies worldwide.

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Did You Know?

Unlike other horse bots, this species' larvae prefer the duodenum over the stomach, a unique niche among Gasterophilus species.

Oregon Tiger Beetle

A variable-colored tiger beetle found in open sandy and gravelly habitats across western North America. Coloring ranges from greenish-bronze to dark brown.

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Did You Know?

It is one of the most widespread tiger beetles in North America, with over a dozen recognized subspecies.