Agrilus biguttatus
In 3 days ~10% in a week ~20%
Agrilus biguttatus is a species of beetle in the family Buprestidae, the jewel beetles. Common names include oak splendour beetle, oak buprestid beetle, and two-spotted oak borer. This beetle is known as a pest that causes damage to oak trees and is a major factor in oak decline.
The adult beetle is 8 to 13 millimeters long. It is metallic green in color with a black or yellow cast. There is a pair of white spots on the inner edges of the elytra. The larva is a creamy white color and measures up to 43 millimeters in length. The first thoracic segment is enlarged. The grub is legless and has a pair of horns on its last abdominal segment. The beetles have an average lifespan of 2 months, but some may live upwards of 5 months.
Agrilus biguttatus is part of the subfamily Agrilinae, within the family Buprestidae in the order Coleoptera. Agrilinae is the largest, most genetically diverse subfamily in Buprestidae. It is made up of four tribes: Coraebini, Aphanisticini, Tracheini and Agrilini. Agrilus biguttatus is part of tribe Agrilini under the subtribe Agrilina. Based on when Buprestidae was estimated to have diverged, it suggests that its ancestors had a habit of wood-boring... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kyiv | 🇺🇦 Ukraine |
Rare
Under 5% of wildlife watchers report an Oak Jewel-Beetle sighting in Kyiv on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 655th most-seen of the 753 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
August
In that month about 10% of wildlife watchers report an Oak Jewel-Beetle in Kyiv on a given day, against under 5% in September to July, the lowest months.
Only Kyiv, in our data
Kyiv is the only city on Wallace's Line with enough records to rate Oak Jewel-Beetle sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Oak Jewel-Beetle is recorded against all the insects logged in Kyiv (5 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
