Spruce Gall Adelgid vs Black-and-Red Froghopper
Side-by-side species comparison
| Attribute | Spruce Gall Adelgid | Black-and-Red Froghopper |
|---|---|---|
| Scientific Name | Adelges abietis | Cercopis arcuata |
| Order | Hemiptera | Hemiptera |
| Family | Adelgidae | Cercopidae |
| Size | 1-2 mm | 8-10 mm |
| Habitat | Farmland | Grasslands |
| Diet | Gall Makers | Sap Feeders |
| Regions | Europe, North America (introduced) | Southern Europe, Mediterranean |
| Conservation | Least Concern | Least Concern |
Spruce Gall Adelgid
A tiny woolly aphid-like insect that induces distinctive pineapple-shaped galls on Norway spruce twigs. The galls form when the insect's feeding causes abnormal growth of developing needles.
Did You Know?
The pineapple-shaped galls are formed by modified needles that swell and fuse together, creating chambers in which the adelgid nymphs develop protected from the environment.
Black-and-Red Froghopper
A southern European froghopper similar to C. vulnerata but with differently shaped red markings. It is common in Mediterranean grasslands.
Did You Know?
Its bright coloration warns predators of its distasteful body chemistry, a defense rare among xylem-feeders.