Languria

Latreille, 1802

lizard beetles

Species Guides

9

Languria is a of lizard beetles (Coleoptera: Erotylidae: Languriinae) established by Latreille in 1802. The genus contains approximately 15-18 described distributed primarily in North America and the Oriental Region. Members are characterized by their association with plant stems, where larvae develop as internal borers. Several species have been documented as agricultural pests when they colonize cultivated crops outside their native range.

Languria angustata by (c) Judy Gallagher, some rights reserved (CC BY). Used under a CC-BY license.Languria mozardi by (c) skitterbug, some rights reserved (CC BY), uploaded by skitterbug. Used under a CC-BY license.Languria taedata by (c) Rich Sommer, some rights reserved (CC BY), uploaded by Rich Sommer. Used under a CC-BY license.

Pronunciation

How to pronounce Languria: /læŋˈɡʊriə/

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Habitat

Coastal marshes and grassland ; specifically documented in Spartina alterniflora marshes along the Gulf Coast of the United States. Larvae inhabit internal stem tissues of plants.

Distribution

North America (eastern coastal regions, western Gulf Coast); Oriental Region. Specific distribution varies by : L. taedata occurs along eastern coastal North America with polymorphic in Louisiana coastal marshes; L. mozardi has expanded range into agricultural systems.

Diet

Phytophagous; larvae feed internally within plant stems. Documented plants include Spartina alterniflora (smooth cordgrass), clover (Trifolium), canola, and soybean (Glycine max).

Host Associations

  • Spartina alterniflora - larval Primary in coastal marsh ; larvae feed within stems
  • Trifolium - larval Implied by 'clover stem borer' for L. mozardi
  • Brassica napus - larval Canola documented as new record for L. mozardi
  • Glycine max - larval Soybean documented as new record for L. mozardi

Life Cycle

Complete with documented stages including larvae and pupae. Larvae are internal stem borers. have been documented attacking immature stages.

Behavior

Larvae bore into plant stems and develop internally. are associated with plants where oviposition occurs.

Ecological Role

Herbivore; stem-boring larvae impact plant . Documented relationships suggest role in as host for natural enemies. Some function as occasional agricultural pests when host range expands to cultivated crops.

Human Relevance

Minor agricultural pest status: L. mozardi (clover stem borer) has been documented on canola and soybean as new records, indicating potential for economic impact when expand from native clover hosts into crop systems.

Similar Taxa

  • SerralanguriaNewly described Oriental established by transferring one from Languria; distinguished by morphological characters requiring examination of

More Details

Taxonomic History

Languria erythrocephalus Blatchley, 1924 has been synonymized with L. taedata LeConte, 1854 based on examination of and geographic variation. An all- 'Form C' of L. taedata was discovered along the western Gulf Coast, representing the first such color morph in the .

Polymorphism

L. taedata exhibits significant in North American , with color variation previously leading to description of distinct now recognized as synonyms.

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