Pseudatomoscelis

Poppius, 1911

Pseudatomoscelis is a of in the , established by Poppius in 1911. The genus contains at least four described , with P. seriatus (cotton fleahopper) being the most economically significant due to its status as a major pest of cotton in the southern United States. Species in this genus are associated with diverse plants, including both agricultural and wild plants.

Pseudatomoscelis by (c) Catherine C. Galley, some rights reserved (CC BY), uploaded by Catherine C. Galley. Used under a CC-BY license.

Pseudatomoscelis by (c) River Ahlquist, some rights reserved (CC BY), uploaded by River Ahlquist. Used under a CC-BY license.

Pseudatomoscelis seriatus by (c) River Ahlquist, some rights reserved (CC BY), uploaded by River Ahlquist. Used under a CC-BY license.

Pronunciation

How to pronounce Pseudatomoscelis: //suˌdætəmoʊˈsɛlɪs//

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Habitat

Members of this inhabit agricultural and semi-natural environments. The cotton fleahopper (P. seriatus) occupies cotton agroecosystems and adjacent semi-natural , with typically higher near field edges. Seasonal use patterns involve on woolly croton (Croton capitatus) and movement to cotton and other hosts during the growing season.

Distribution

The occurs in North America. Pseudatomoscelis seriatus is distributed across cotton-growing regions of the southern United States, particularly Texas and Oklahoma. Other have more restricted ranges: P. insularis is known from island , and P. flora and P. nubila have localized distributions.

Seasonality

Pseudatomoscelis seriatus exhibits distinct seasonal use. hatch from hosts (woolly croton) in spring. peak during the cotton squaring period (pre-floral stage). return to woolly croton at season end to oviposit, completing the cycle.

Diet

Phloem-feeding on plants. Pseudatomoscelis seriatus feeds on pre-floral cotton (squares), causing abscission and yield loss.

Host Associations

cotton - primary agricultural Gossypium hirsutum; main economic , attacked during squaring stage
woolly croton - and siteCroton capitatus; critical for seasonal and
horsemint - wild Monarda ; in some regions
various Malvaceae - wild relatives of cotton used seasonally

Life Cycle

, , and stages. Eggs are deposited in stems. Nymphs develop through five . Multiple occur annually in southern regions. occurs as eggs in plant stems.

Behavior

Pseudatomoscelis seriatus exhibits -associated differentiation with geographic patterning; genetic structure varies by location and correlates with precipitation differences. show higher near field edges, declining linearly into field interiors. and engage in rupturing and ingestion feeding behaviors on cotton squares.

Ecological Role

Agricultural pest causing direct damage to reproductive structures of cotton. Acts as a driving defense evolution and transgenic development. Serves as a model for studying -associated differentiation and in .

Human Relevance

Pseudatomoscelis seriatus is a highly economically damaging pest of cotton in Texas and Oklahoma. Management relies heavily on foliar , though transgenic cotton expressing Mpp51Aa2 has shown promise for reducing feeding damage and improving square retention. The has been the of extensive research on -associated differentiation, genetics, and .

Similar Taxa

Creontiades signatus (verde plant bug)Co-occurs in cotton agroecosystems and exhibits similar edge-concentrated distribution patterns; both are pests requiring similar and management approaches
Other Miridae genera (Lygus, Adelphocoris)Share piercing-sucking feeding habits and cotton pest status; distinguished by size, coloration, and specific associations