Adelges

Adelges is a genus of insects which feed on conifers. 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.

Adelges

Gilles San Martin from Namur, Belgium · CC BY-SA 2.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
AdelgidaePBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 30 million years on record.

The record covers at least 33.9 Mya to 3.6 Mya. No occurrence read is dated outside 37.71 Mya to 2.58 Mya.

Eocene — about 1 of 2 occurrencesEoceneOligocene — about 0 of 2 occurrencesMiocene — about 0 of 2 occurrencesPliocene — about 1 of 2 occurrencesPleistocene — about 0 of 2 occurrences38–37 Mya — about 0.1 occurrences37–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–34 Mya — about 0.2 occurrences4.3–3.1 Mya — about 0.5 occurrences3.1–1.9 Mya — about 0.5 occurrences33.9 Mya3.6 Mya38.4 Mya1.9 Mya

2 occurrences of Adelges on record. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

2 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in the same rock

489 taxa

The Paleobiology Database records 2 sites for Adelges, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

2 references

Each of the 2 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Adelges

Credit
Gilles San Martin from Namur, Belgium
Licence
CC BY-SA 2.0
Commercial use
the licence allows it

No 3D scan of Adelges was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itAdelgidae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Vallot 1836