Silhouette: Prespa Research Group · PhyloPic
Apalus bimaculatus
In 3 days ~20% in a week ~30%
Apalus bimaculatus, the early blister beetle, is a species of blister beetle from the family Meloidae. It is the type species of the genus Apalus. This species is a 1 centimetre (0.39 in) long predominantly black beetle which has distinctive yellow-orange elytra each with a single black dot near the posterior end of each elytron. The females have a swollen abdomen and some of its segments are yellowish in colour.
Apalus bimaculatus is a widespread species over much of Europe, as far north as southern Scandinavia although it is absent from Great Britain. Apalus bimaculatus occurs in sandy area such as coastal dunes and riparian floodplains as well as being found in man made habitats such as sand pits and sand quarries. It is a cleptoparasite of the solitary bee Colletes cunicularius. The adults of this beetle emerge early in the spring to mate and to lay their eggs near the nesting aggregations of their host bee. They are short-lived and the females die after mating and the eggs hatch from the body of their mother and the larvae crawl out of the protection of their mother's corpse. The first instar of larvae, the triungulins... Wikipedia →
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Apalus bimaculatus sighting in Bucharest on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 194th most-seen of the 361 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
March
In that month about 20% of wildlife watchers report an Apalus bimaculatus in Bucharest on a given day, against under 5% in February and April–December, the lowest months.
Among the best
Of the 2 cities where we can rate Apalus bimaculatus sightings, Bucharest ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Budapest (Hungary, about 10%).
GBIF citizen-science records
It is estimated from how often the Apalus bimaculatus is recorded against all the insects logged in Bucharest (9 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.
