Deer Bot Fly vs Spring Firefly

Side-by-side species comparison

Attribute Deer Bot Fly Spring Firefly
Scientific Name Cephenemyia stimulator Photinus ardens
Order Diptera Coleoptera
Family Oestridae Lampyridae
Size 12-15 mm 5-8 mm
Habitat Woodlands Woodlands
Diet Parasites Predators
Regions Europe North America
Conservation Least Concern Least Concern

Deer Bot Fly

A parasitic fly that deposits larvae in the nostrils of roe deer. The larvae develop in the pharyngeal region before being sneezed out.

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Did You Know?

Once erroneously claimed to fly at over 1,300 km/h, making it a famous example of scientific exaggeration.

Spring Firefly

A small early-season firefly of the eastern United States with a distinctive fast double-pulse flash pattern. It has a dark body with a pinkish-red pronotum and is among the first fireflies to appear each year.

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Did You Know?

This species often begins flashing earlier in the evening than most other North American fireflies.