Megaderus stigma
In 3 days ~20% in a week ~40%
Megaderus stigma is a species of long-horned beetle in the family Cerambycidae. It is found in Nicaragua, Costa Rica, Panama, Trinidad & Tobago, Colombia, Venezuela, Guyana, Suriname, French Guiana, Brazil (Paraíba, Pernambuco, Alagoas, Bahia, Mato Grosso, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul), Peru, Bolivia, Paraguay, Argentina and Uruguay.
This species was described by Linnaeus. He described it as: Cerambyx sub-short, roundish, coarsely punctate, body dark, elytra smooth: with white macula. Habitat in America. Rolander. Totally black. thorax hemispherical, sub-margined, abundantly coarsely punctate, posteriorly excavated close to lateral tooth. Scutellum smooth, longer in the other species. Elytra smooth, black, on each side of scutellum with white line outward oblique. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brasilia | 🇧🇷 Brazil | |
| 2 | Belo Horizonte | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Megaderus stigma sighting in Brasilia on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 71st most-seen of the 102 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
September
In that month about 20% of wildlife watchers report a Megaderus stigma in Brasilia on a given day, against under 5% in November to July, the lowest months. That is one of Brasilia's driest months, with about 30 mm of rain against 220 mm in December.
Yes
Of the 2 cities where we can rate Megaderus stigma sightings, Brasilia has the highest daily chance: about 10%. Next come Belo Horizonte (Brazil, under 5%).
GBIF citizen-science records
It is estimated from how often the Megaderus stigma is recorded against all the insects logged in Brasilia (6 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.
