Grain Aphid vs European Firebug

Side-by-side species comparison

Attribute Grain Aphid European Firebug
Scientific Name Sitobion avenae Pyrrhocoris apterus
Order Hemiptera Hemiptera
Family Aphididae Pyrrhocoridae
Size 1.5-3 mm 9-13 mm
Habitat Farmland Underground
Diet Herbivores Predators
Regions Europe, Asia, Africa, South America Europe, Central Asia, North Africa
Conservation Not Evaluated Least Concern

Grain Aphid

A major pest of cereal crops in Europe and other temperate regions. It feeds on ears and leaves, reducing grain quality and transmitting barley yellow dwarf virus.

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Did You Know?

Feeding on wheat ears during grain fill can reduce thousand-kernel weight by up to 20%.

European Firebug

A strikingly patterned red and black bug that forms large aggregations at the base of linden trees. It is one of the most recognizable insects in Europe. The bold aposematic coloration warns predators of its unpleasant taste.

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Did You Know?

It was one of the first insects in which scientists discovered that the gut microbiome is essential, as germ-free individuals show stunted growth and high mortality.