Cotton Stainer Bug vs Hazel Sawfly

Side-by-side species comparison

Attribute Cotton Stainer Bug Hazel Sawfly
Scientific Name Dysdercus suturellus Croesus septentrionalis
Order Hemiptera Hymenoptera
Family Pyrrhocoridae Tenthredinidae
Size 12-17 mm 8-10 mm
Habitat Heathland Heathland
Diet Seed Feeders Herbivores
Regions North America, Central America Europe, Western Asia
Conservation Least Concern Least Concern

Cotton Stainer Bug

A red and black bug that stains cotton bolls by introducing fungal spores while feeding.

💡

Did You Know?

Aggregations of hundreds gather on fallen cotton bolls and hibiscus seed pods.

Hazel Sawfly

A medium-sized sawfly with an orange abdomen and dark thorax. The bluish-green larvae with black heads feed gregariously on hazel, birch, and alder.

💡

Did You Know?

When disturbed, the gregarious larvae raise their tails simultaneously in an S-shape, creating an intimidating group display to deter predators.