Aulacidea acroptilonica
Tyurebaev, 1979
Russian Knapweed Gall Wasp
Aulacidea acroptilonica is a of gall wasp in the Cynipidae, commonly known as the Russian Knapweed Gall Wasp. It is a herbivore that induces galls on its plant. The species is native to regions associated with Russian knapweed and has been recorded in the conterminous United States. Like other members of the Aulacidea, it is likely targeted by . The species was described by Tyurebaev in 1979.
Pronunciation
How to pronounce Aulacidea acroptilonica: //ɔː.ləˈsɪd.i.æ æˌkrɒp.tɪˈlɒn.ɪ.kə//
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Identification
Identification of Aulacidea acroptilonica requires examination of the galls it produces on Russian knapweed (Acroptilon repens), as well as morphological analysis of specimens. Specific diagnostic features distinguishing it from congeneric such as Aulacidea hieracii are not documented in available sources. Accurate identification likely depends on plant association and detailed examination of gall structure and adult .
Habitat
Associated with Russian knapweed (Acroptilon repens), a plant found in disturbed areas, rangelands, and agricultural fields. The inhabits environments where its plant grows.
Distribution
Recorded from the conterminous 48 United States (US, PRESENT). The name references Acroptilon (Russian knapweed), suggesting an association with the native range of this plant in Central Asia, though confirmed distribution records are limited.
Diet
herbivore; induces galls on Russian knapweed (Acroptilon repens). The larva develops within the gall tissue, feeding on plant material.
Host Associations
- Acroptilon repens - gall inducerRussian knapweed; primary plant for gall formation
Life Cycle
As a cynipid gall wasp, the involves: (1) female ovipositing into plant tissue, (2) induction of gall formation, (3) larval development within the gall, and (4) adult . Specific details regarding time, voltinism, and stage for this are not documented.
Ecological Role
Acts as a gall inducer on Russian knapweed, potentially influencing plant growth and tissue allocation. Serves as for , including in the Eupelmidae.
Human Relevance
Russian knapweed is an weed in North America; Aulacidea acroptilonica has been investigated as a potential agent. The iNaturalist record of 38 observations suggests moderate documentation by citizen scientists.
Similar Taxa
- Aulacidea hieraciiBoth are congeneric gall wasps that induce stem galls; distinguished by plant association (Hieracium vs. Acroptilon)
- Other Aulacidea speciesShare -level characteristics of gall induction on Asteraceae; require plant and morphological examination for separation
More Details
Biological control context
The has been considered for of Russian knapweed (Acroptilon repens), an plant in western North America. Its narrow specificity makes it a candidate for programs.