Melitara junctolineella
Hulst, 1900
Melitara junctolineella is a snout moth (Pyralidae) native to southern Texas and eastern Mexico. It has been introduced to Australia as a agent for the cactus Opuntia stricta. The is , with two distinct periods annually. Its larvae are specialized feeders on several Opuntia cactus species.
Pronunciation
How to pronounce Melitara junctolineella: //ˌmɛlɪˈtɑːrə ˌdʒʌŋktoʊlɪˈnɛlə//
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Identification
are small snout moths with the characteristic elongated labial palps of Pyralidae. Specific diagnostic features distinguishing M. junctolineella from congeneric are not documented in available sources. The species is best identified by its restricted geographic range and association with Opuntia plants.
Habitat
Native range includes arid and semi-arid regions of the Chihuahuan Desert in southern Texas and the coastal plain of eastern Mexico. In Australia, it occurs wherever its introduced plant Opuntia stricta has established.
Distribution
Native to southern Texas (Brownsville to Presidio) and Mexico (coastal plain from Texas border south to Tampico). Introduced to Australia for purposes.
Seasonality
active mid-January to May and late August to early November. Two per year. Second-generation larvae feed during winter and pupate in January.
Diet
Larvae feed on Opuntia rufida, Opuntia macrorhiza var. macrorhiza, Opuntia stricta var. stricta, and Opuntia lindheimeri var. lindheimeri. feeding habits are not documented.
Host Associations
- Opuntia rufida - larval food plantnative
- Opuntia macrorhiza var. macrorhiza - larval food plantnative
- Opuntia stricta var. stricta - larval food plantnative ; target of Australian introduction
- Opuntia lindheimeri var. lindheimeri - larval food plantnative
Life Cycle
with two annually. Second-generation larvae overwinter, feeding during winter months before pupating in January. occurs in January, with emerging shortly thereafter.
Ecological Role
herbivore of Opuntia cacti. In Australia, functions as a agent reducing of the cactus Opuntia stricta.
Human Relevance
Introduced to Australia as a agent for Opuntia stricta, an cactus . No other documented economic or cultural significance.
Similar Taxa
- Melitara prodenialisCongeneric with similar associations on Opuntia; may co-occur in native range and requires careful morphological examination for separation
- Melitara dentataAnother Opuntia-feeding ; may be confused without detailed genitalic or wing pattern examination
More Details
Biological control history
The was introduced to Australia specifically to control Opuntia stricta, one of the most problematic cactus invaders in Australian rangelands. Its establishment and efficacy as a control agent have been documented in Australian entomological literature.