Red bugs

Definition

A common name for members of the family Pyrrhocoridae (Hemiptera), a group of brightly colored, often red-and-black true bugs. Many species are phytophagous seed predators, with several Dysdercus species economically significant as pests of cotton and other malvaceous crops; their common name 'cotton stainers' refers to the indelible stains left on lint when bugs are crushed during harvesting. The family is distinguished from superficially similar Lygaeidae by the lack of ocelli and specific trichobothrial arrangements on the abdomen.

Etymology

From the vivid red and black aposematic coloration characteristic of many species.

Example

Dysdercus suturellus, the cotton stainer, is a red bug that aggregates on developing cotton bolls and transmits fungal pathogens that discolor fibers.

Synonyms

• firebugs
• Cotton stainers

Related Terms

• Pyrrhocoridae
• Hemiptera
• Lygaeidae
• Dysdercus
• true bugs
• seed predation
• agricultural pest
• aposematic coloration

Usage Notes

In casual usage 'red bugs' may also refer to other reddish insects (e.g., certain Miridae or even non-hemipterans), but in entomological contexts it typically denotes Pyrrhocoridae. The term 'cotton stainer' specifically applies to pestiferous Dysdercus species. Contrast with 'milkweed bugs' (Lygaeidae: Oncopeltus), which share similar coloration but belong to a different family.