Psylla alni
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| Psylla alni | |
|---|---|
_-_Flickr_-_S._Rae.jpg) | |
| Adult Psylla alni on alder | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hemiptera |
| Suborder: | Sternorrhyncha |
| Family: | Psyllidae |
| Genus: | Psylla |
| Species: | P. alni |
| Binomial name | |
| Psylla alni (Linnaeus, 1758) | |
| Synonyms[1] | |
Psylla alni is a species of psyllid, a plant-feeding hemipteran in the family Psyllidae. It is the type species of Psylla, which is the type genus in its family.
This species is present in the Palearctic realm (from Europe to Siberia and Sakhalin, Kazakhstan, Caucasus) and in the Nearctic realm (Canada and United States of America).[3][1]
Description
Psylla alni can reach a body length of about 5–6 mm (0.20–0.24 in). These rather large psyllids have a green head, body, and legs, and rather long antennae. The costal marginal veins of the wings are green, while the other veins are brown. Adults are initially green, later becoming orange, brown, or reddish. The nymphs are usually covered by white waxy secretions.[4] In the 5th preimaginal stage nymphs can reach a length of about 2–3 mm (0.079–0.118 in).
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