Prociphilus tessellatus
(Fitch, 1851)
Woolly Alder Aphid, Maple Blight Aphid
Prociphilus tessellatus, commonly known as the woolly alder , is a of aphid in the . It is notable for producing dense , waxy filaments that cover its body, giving it a distinctive woolly or cloud-like appearance. The species has been observed forming colonies on alder (Alnus) species, including European alder (Alnus glutinosa). It serves as for various , including the Asian (Harmonia axyridis). The waxy secretions are believed to provide protection against predators and environmental conditions.
Pronunciation
How to pronounce Prociphilus tessellatus: /proʊˈsɪfɪləs tɛsəˈleɪtəs/
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Identification
Distinguished from other by its dense covering of , waxy filaments that create a woolly or fluffy appearance. These secretions are produced from the aphid's own body rather than collected from the environment. The waxy coating distinguishes it from non- and from other that use environmental debris for .
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Habitat
Associated with alder trees (Alnus ), including European alder (Alnus glutinosa). Observed in dry-mesic upland deciduous forest settings where trees occur.
Distribution
Recorded from Vermont and other parts of the United States. Observed in Missouri at Johnson's Shut-Ins State Park.
Diet
Feeds on phloem sap of alder trees (Alnus ).
Host Associations
- Alnus glutinosa - European alder; observed colony formation on this
- Alnus - Alder ; primary association
Behavior
Forms colonies on trees. Produces waxy secretions that cover the body.
Ecological Role
Serves as for predatory , including . The waxy secretions may contribute to a complex with other waxy-coated insects and young tissues.
Similar Taxa
- Other woolly aphids (Eriosomatinae)Similar waxy filament production; distinguished by association and specific waxy coating characteristics
- Flatid plant-hoppers (Flatidae)Also produce waxy secretions; distinguished by different body plan and associations