Sheep Nose Bot Fly vs Red Cotton Bug

Side-by-side species comparison

Attribute Sheep Nose Bot Fly Red Cotton Bug
Scientific Name Oestrus ovis Dysdercus koenigii
Order Diptera Hemiptera
Family Oestridae Pyrrhocoridae
Size 10-12 mm 12-18 mm
Habitat Farmland Farmland
Diet Parasites Fungus Feeders
Regions Worldwide South Asia (India, Pakistan, Bangladesh, Nepal, Sri Lanka)
Conservation Least Concern Least Concern

Sheep Nose Bot Fly

A parasitic fly that shoots live larvae into the nostrils of sheep and goats while in flight. Larvae develop inside the nasal sinuses, causing distress to livestock.

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Did You Know?

This fly does not lay eggs — it shoots live first-instar larvae directly into the nostrils of sheep while flying past at speed, a method called larviposition.

Red Cotton Bug

A bright red and black true bug that stains cotton lint by piercing developing cotton bolls. Adults and nymphs aggregate in large numbers on cotton plants, and their feeding introduces fungi that further damage the crop.

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Did You Know?

The red staining caused by this bug's feeding on cotton bolls reduces the market value of the cotton fiber by creating permanent yellow spots.