Uroleucon verbesinae

(Boudreaux, 1949)

Bicolored Frostweed Aphid

Uroleucon verbesinae is a North American in the Aphididae. It belongs to the large Uroleucon, whose members typically feed on plants in the Asteraceae family. The species reproduces parthenogenetically during spring and summer, producing all-female colonies. Like other Uroleucon aphids, it exhibits synchronized defensive when disturbed.

Pronunciation

How to pronounce Uroleucon verbesinae: /ˌjuːroʊˈljuːkɒn vərˈbɛsɪnae/

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Habitat

Associated with plants in the Asteraceae , including frostweed (Verbesina virginica) and related .

Distribution

North America; recorded in the United States.

Seasonality

Active during spring and summer months; parthenogenetic occurs during warm seasons.

Diet

Phloem feeder specializing on Asteraceae plants.

Host Associations

Verbesina virginica - primary plantFrostweed, the namesake

Life Cycle

Reproduces parthenogenetically during spring and summer, with females producing live young without mating. and -laying typically occurs in autumn.

Behavior

Exhibits synchronized collective twitching and kicking response (CTKR) when the colony is disturbed by or vibrations. This coordinated defense may reduce attacks by parasitic .

Ecological Role

Serves as prey for diverse including lady beetles, larvae, flower fly larvae, lynx spiders, and parasitic . Honeydew supports other insects and promotes growth.

Similar Taxa

Uroleucon ambrosiaeClosely related congeneric with similar and ; both feed on Asteraceae and exhibit parthenogenetic and synchronized defensive .
Uroleucon hypochoeridisRelated studied for collective defense ; shares CTKR response and ecological role as prey for similar guilds.