Synonyms and other taxonomic changes
Metzneria paucipunctella Zeller, 1839
The genus Metzneria includes two named species in America north of Mexico.
The forewing length averages 6-8 mm.
Wingspan 15 mm.
Introduced in the 1980's as a biological control agent for Centaurea
(knapweed) in the western United States. (1)
Established in Colorado, Idaho, Minnesota, Montana, Oregon, Washington, and western Canada.
Released in Nebraska but is not considered established (2013).
Metzneria paucipunctella is a native of Europe.
The adults are most common from May to July.
The larvae of the genus Metzneria feed in the seedheads of the host plant, and are known to have one generation per year.
Coulson, J.R., 1982. Releases of beneficial organisms in the United States and territories. United States Department of Agriculture, Miscellaneous Publication, no. 1505: 295
, 330, 342, 400.
Meyrick, E., 1925. Lepidoptera Heterocera Fam. Gelechiidae. Genera Insectorum, Fascicules 184: 29