Pterocallis alni
This record describes Pterocallis alni (species). Recorded family: Aphididae. Recorded order: Hemiptera.
Identification and Appearance
The body length of Pterocallis alni apterae is 1.3 to 2.0 mm. Both the winged and wingless adult viviparae of P. alni are yellowish white to yellowish green. For a more detailed description of this species please use the ‘Further info:’ link below. Please add good quality images to support your record, and also state the host plant. In Britain Pterocallis alni is found almost exclusively on Common Alder, living dispersed on undersides of leaves. Sexual forms occur about September-November. True status in Britain is difficult to determine due to lack of records. https://influentialpoints.com/Gallery/Pterocallis_alni_Common_alder_aphid.htm
Classification
Habitat and Range
Habitat
In Britain
Seasonal Activity
Sexual forms occur about September-November.
Diet and Behavior
Life History
Sometimes attended by ants.
Additional species information
Recorded status
True status in Britain is difficult to determine due to lack of records.
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Pterocallis alni. Species-specific details appear above.
Group overview
Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.
Ecological role of the group
Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.
Economic and practical significance of the group
The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.
Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.
Photos of Pterocallis alni (5)
Frequently Asked Questions About Pterocallis alni
What is Pterocallis alni?
Pterocallis alni is a species in the family Aphididae, within the order Hemiptera.
How big is Pterocallis alni?
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Where is Pterocallis alni found?
Habitat: In Britain
When is Pterocallis alni active?
Pterocallis alni: seasonal activity - Sexual forms occur about September-November..
What is the life cycle of a Pterocallis alni?
Sometimes attended by ants.