Eyed Elater Glowworm vs Throat Bot Fly of Horses
Side-by-side species comparison
| Attribute | Eyed Elater Glowworm | Throat Bot Fly of Horses |
|---|---|---|
| Scientific Name | Phengodes fusciceps | Gasterophilus nasalis |
| Order | Coleoptera | Diptera |
| Family | Phengodidae | Oestridae |
| Size | 15-25 mm (females) | 11-15 mm |
| Habitat | Woodlands | Farmland |
| Diet | Omnivores | Omnivores |
| Regions | Eastern United States | Worldwide wherever horses are kept |
| Conservation | Least Concern | Least Concern |
Eyed Elater Glowworm
A railroad worm beetle whose larviform females emit light from paired organs along the body. Males are short-lived, winged, and do not glow.
Did You Know?
Females produce both green light from their body segments and red light from their head, resembling a tiny railroad train at night.
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.
Did You Know?
Unlike other horse bots, this species' larvae prefer the duodenum over the stomach, a unique niche among Gasterophilus species.