Lasioptera ephedrae
Cockerell, 1898
Mormon Tea Stem Gall Midge
Lasioptera ephedrae is a of in the . It is known for inducing stem on Ephedra trifurca, a desert shrub commonly called Mormon tea. The species was described by Cockerell in 1898 and is found in arid regions of the southwestern United States and adjacent Mexico. Like other gall midges, it has a complex involving intimate association with its .
Pronunciation
How to pronounce Lasioptera ephedrae: //leɪˌsaɪəpˈtɛrə ɛˈfiːdriː//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
are tiny , typically 2-4 mm in length, with the characteristic delicate build of . The Lasioptera can be recognized by patterns and antennal structure, but -level identification usually requires examination of male or association with . The stem galls on Ephedra trifurca are the most reliable field indicator of this species.
Habitat
Arid and semi-arid regions where the Ephedra trifurca (Mormon tea) occurs. This includes desert scrub, dry washes, and rocky slopes in the southwestern United States and northern Mexico.
Distribution
Southwestern United States (Arizona, New Mexico, southern California, southern Nevada, southwestern Utah, western Texas) and adjacent northern Mexico. The range corresponds closely to that of its Ephedra trifurca.
Diet
feed internally within stem on Ephedra trifurca. feeding habits are not well documented but typically do not feed as adults or consume only nectar or .
Host Associations
- Ephedra trifurca - inducerForms stem on this
Life Cycle
Females lay on or near the stems of Ephedra trifurca. induce the formation of stem in which they develop, feeding on tissue. The gall provides protection and nutrition. occurs within the gall. emerge to mate and disperse. The number of per year is not well documented but likely varies with local climate conditions.
Ecological Role
As a inducer, this modifies growth and creates microhabitats that may be used by other organisms. The galls represent a form of plant- interaction that can affect host plant , though the magnitude of impact on Ephedra trifurca is not well studied.
Human Relevance
No direct economic importance. The may be of interest to naturalists and studying - interactions. The plant Ephedra trifurca has historical medicinal use by peoples, but the itself is not involved.
Similar Taxa
- Other Lasioptera speciesMany Lasioptera induce on different plants; identification requires host association or detailed morphological examination
- Other Cecidomyiidae on EphedraMultiple may occur on Ephedra species; L. ephedrae is specifically associated with E. trifurca stem
More Details
Taxonomic history
Described by Theodore Dru Alison Cockerell in 1898, based on specimens from New Mexico. The epithet 'ephedrae' directly references its .
Gall morphology
The stem induced on Ephedra trifurca are typically irregular swellings on the green photosynthetic stems. Detailed descriptions of gall structure are lacking in the accessible literature.