Meskea

Grote, 1877

Species Guides

Meskea dyspteraria(Window-winged Moth)

Meskea is a of in the Thyrididae, Siculodinae. in this genus are gall-forming herbivores whose larvae develop within stem galls on plants in the family Malvaceae. The genus includes at least two documented species: Meskea horor, a potential agent studied for its impact on weedy Sida species, and Meskea dyspteraria, which has been recorded as a host for the Calliephialtes grapholithae. moths are or in habit.

Meskea dyspteraria by (c) Morgan Hay, some rights reserved (CC BY), uploaded by Morgan Hay. Used under a CC-BY license.

Meskea subapicula by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Meskea: //ˈmɛs.keɪ.ə//

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

Identification

Meskea can be distinguished from other Thyrididae by their gall-forming larval and association with Malvaceae plants. are small with the characteristic wing venation patterns of the Thyrididae, which typically feature reticulate or window-like wing patterns. Specific identification to species level requires examination of genitalia or larval host associations.

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Habitat

Associated with plants in the Malvaceae, particularly Sida acuta and Sida rhombifolia. Field studies have been conducted in tropical and subtropical regions where these host plants occur.

Distribution

Documented from Mexico (Veracruz) in studies of Meskea horor; broader distribution across the Americas likely given plant ranges but not explicitly documented in available sources.

Diet

Larvae feed internally within stem galls on Malvaceae plants. in laboratory conditions have been observed feeding on flowers of Sida acuta, Sida rhombifolia, and Hibiscus sabdariffa, as well as drinking water or dilute honey solution; field feeding by adults has not been observed.

Host Associations

Sida acuta - Gall-forming herbivoreLarval development in stem galls; primary for studies
Sida rhombifolia - Gall-forming herbivoreLarval development in stem galls; primary for studies
Hibiscus sabdariffa - feedingLaboratory observation only; flowers used as food source
Chalcoela iphitalis - Indirect associationMeskea dyspteraria caterpillars have been found in Polistes metricus nests, suggesting possible predatory or parasitic relationship with wasp larvae

Life Cycle

to development time approximately 192 days for Meskea horor. Adults live 11–14 days. Eggs are laid mainly on the underside of leaves. Larvae bore into stems and form galls, where they complete development. occurs within the gall.

Behavior

emerge early in the morning and are typically inactive during daylight hours. Larval gall formation retards plant growth and flowering. Some or may have complex ecological relationships, including possible association with paper wasp nests.

Ecological Role

Gall-forming herbivore that acts as a plant stressor, reducing growth and reproductive output of Malvaceae . Serves as host for including Calliephialtes grapholithae. Considered unsuitable as a agent due to broad host range within Malvaceae.

Human Relevance

Studied as a potential agent for weedy Sida (Sida acuta and Sida rhombifolia), but rejected due to broad range that includes economically important Malvaceae species.

Similar Taxa

Other Thyrididae generaSimilar ; distinguished by larval and associations
Other gall-forming LepidopteraConvergent gall-forming habit; distinguished by -level characteristics including wing venation and

More Details

Biological control evaluation

Meskea horor was evaluated for of Sida acuta and S. rhombifolia in Mexico. range testing on 48 plant showed from seven Malvaceae species and larval gall formation (but mortality before ) on 17 additional species, indicating too broad a host range for safe introduction as a biological control agent.

Complex ecological associations

Meskea dyspteraria has been documented in an unusual ecological context: caterpillars were found in an abandoned nest of the paper wasp Polistes metricus, suggesting possible on larvae similar to the related Chalcoela iphitalis. This association requires further documentation to confirm.