Aphis

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Hemiptera
Suborder: Sternorrhyncha
Superfamily: Aphidoidea
Family: Aphididae
Subfamily: Aphidinae
Tribe: Aphidini
Subtribe: Aphidina
Genus: Aphis

Pronunciation

How to pronounce Aphis: /ˈeɪfɪs/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Aphis houghtonensis by the Smithsonian. Used under a CC0 license.

Aphis pulverulens by the Smithsonian. Used under a CC0 license.

Aphis circezandis by the Smithsonian. Used under a CC0 license.

Aphis mali fulviventris by the Smithsonian. Used under a CC0 license.

Summary

Aphis is a genus of insects within the family Aphididae, primarily known as aphids, that are significant agricultural pests due to their sap-sucking behavior, which can cause extensive damage to crops. Many species within this genus are of economic importance.

Diet

Sap from plants

Life Cycle

Aphis undergoes a complex life cycle that includes asexual reproduction during favorable conditions and sexual reproduction during unfavorable conditions. Typically, they exhibit parthenogenesis, where females give birth to live young without mating.

Reproduction

Reproduction is primarily by parthenogenesis, where females give birth to live young (nymphs) without the need for male fertilization. Sexual reproduction occurs in some species under specific environmental conditions, leading to the production of eggs that can withstand adverse conditions.

Ecosystem Role

Aphids are important herbivores that influence plant health and serve as a food source for many predators including ladybugs, lacewings, and birds.

Economic Impact

Several species, such as Aphis gossypii (cotton aphid) and Aphis glycines (soybean aphid), have significant economic impacts as agricultural pests, leading to crop damage and economic loss.