Hemiptera20 species

Family Adelgidae

Adelgidae is a family in the order Hemiptera. Browse 20 named species recorded in this family, or open an individual profile for its available identification and natural-history information.

Species in Adelgidae (20)

Eastern Spruce Gall Adelgid

Adelges abietis

Identification: Galls are small, short, pineapple-shaped growths found at the bases of twigs of Norway spruce Introduced from Europe before 1900

group

Adelges laricis

The larvae of Adelges laricis cause galls on Spruce. The galls are waxy, creamy and relatively small. The winged female which matures on spruce is greyish to blackish, with a body length of 1.9 to 2.0 mm. For a full description of the life cycle see

Balsam Woolly Adelgid

Adelges piceae

Identification: Purple to black. As they mature, they cover themselves with cottony white wax, and become much more noticeable. Adults are near-spherical and usually wingless.

Hemlock Woolly Adelgid

Adelges tsugae

Identification: Red-purple to purple-black. As they mature, they cover themselves with white, cottony wax, becoming much more noticeable. Accidentally introduced to British Columbia and Oregon from Asia in the 1920's or earlier. The first eastern rec

Pine Woolly Aphid

Pineus pini

The apterous female of Pineus pini , known as the 'sistens' is covered in white wax wool. Under the wax the sistens is dark brown to dark red, and almost spherical. The adult Pineus pini aptera has a body length of 1.0 to 1.2 mm. It is associated wit