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Spruce Gall Adelgids On Spruce BranchBumblebee in Common Hollyhock Flower
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Spruce Gall Adelgids On Spruce Branch, Hermesu dzimta (Adelgidae), Egles (Picea)

Spruce Gall Adelgids On Spruce Branch

Code: A-512-20
Author: Aivars Gulbis
Photo taken on June 14, 2020
FREE 1000 x 667 px
72 dpi
137 KB
S 1748 x 1165 px
14.8 x 9.87 cm / 300 dpi
MB
M 3000 x 2000 px
25.4 x 16.93 cm / 300 dpi
L 6000 x 4000 px
50.8 x 33.87 cm / 300 dpi
14.7 MB

Adelges is a genus of insects which feed on conifers. Excepting galls formed by the spruce gall midge, galls are caused by aphid-like insects of the superfamily Phylloxeroidea (family Adelgidae) commonly known as the spruce gall adelgids. They have complex life cycles, some species feeding exclusively on spruce, others feeding on spruce and an alternate conifer. However, galls characteristic of each species are formed only on spruce. Six generations are usually needed to complete the 2-year cycle, and in the case of species having an alternate host, winged adults about 2 mm long are formed only in the generations that move from one host to the other.

The spruce gall adelgid (Adelges lariciatus Patch) occurs in alternate years on spruce and larch from Alberta to the Maritimes and in adjacent parts of the United States. The pale spruce gall adelgid (Adelges strobilobius Kaltenbach) has a similar range but prefers black spruce or red spruce to white spruce.

Adelges
 Kingdom:     Animalia
 Phylum:  Arthropoda
 Class:  Insecta
 Order:  Hemiptera
 Suborder:  Sternorrhyncha
 Family:  Adelgidae
 Genus:  Adelges

en.wikipedia.org

Spruce Gall Adelgids On Spruce Branch

Code: A-512-20
Author: Aivars Gulbis
Photo taken on June 14, 2020
FREE 1000 x 667 px
72 dpi
137 KB
S 1748 x 1165 px
14.8 x 9.87 cm / 300 dpi
MB
M 3000 x 2000 px
25.4 x 16.93 cm / 300 dpi
L 6000 x 4000 px
50.8 x 33.87 cm / 300 dpi
14.7 MB
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