Eastern spruce gall adelgid nymphs can be described as which color?

Eastern spruce gall adelgid nymphs can be described as which color?

• A. Dark brown or black
• B. Bright green
• C. Pale yellow
• D. Red

Answer: (A)

Color provides a practical clue about the life stage. Eastern spruce gall adelgid nymphs inside the galls are dark brown to black, reflecting their pigmented cuticle as they develop within the protective tissue. This dark appearance helps distinguish them from other stages or pests on spruce, such as pale-colored eggs or other insects that may appear green, yellow, or red. So the dark brown to black coloration is the typical look for these nymphs.

Color provides a practical clue about the life stage. Eastern spruce gall adelgid nymphs inside the galls are dark brown to black, reflecting their pigmented cuticle as they develop within the protective tissue. This dark appearance helps distinguish them from other stages or pests on spruce, such as pale-colored eggs or other insects that may appear green, yellow, or red. So the dark brown to black coloration is the typical look for these nymphs.