Homalinotus coriaceus
In 3 days ~10% in a week ~30%
Homalinotus coriaceus, the black coconut bunch weevil, is a species of weevil belonging to the family Curculionidae. This species is found in Brazil and is considered a pest because it feeds on cultivated coconuts. Due to the damage H. coriaceus can inflict on coconut trees, it is considered a major pest in Brazil. Larvae will tunnel into the peduncles of the coconut tree, feeding on sap. Likewise, adults will often damage the flowers and fruit tissues. H. coriaceus has been estimated to have reduced coconut production in Brazil by around 50%.
Black coconut bunch weevils are black and range between 25 and 30 millimetres (0.98 and 1.18 in) long with a rostrum of approximately 8 millimetres (0.31 in), the mature larvae are white, curved, bigger than the adult-beetle with 40 to 50 millimetres (1.6 to 2.0 in) in length and display a rust-tinted head. The eggs laid on the floral peduncle are white, smooth, and elongated. This species has little to no sexual dimorphism, where females are a bit larger than males and have two subtle indentations on the pronotum. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tijuca National Park | 🇧🇷 Brazil |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | João Pessoa | 🇧🇷 Brazil | |
| 2 | Santos | 🇧🇷 Brazil | |
| 3 | Niterói | 🇧🇷 Brazil | |
| 4 | Brasilia | 🇧🇷 Brazil | |
| 5 | Curitiba | 🇧🇷 Brazil | |
| 6 | São Paulo | 🇧🇷 Brazil | |
| 7 | Porto Alegre | 🇧🇷 Brazil | |
| 8 | Vitória | 🇧🇷 Brazil | |
| 9 | Rio de Janeiro | 🇧🇷 Brazil | |
| 10 | Belo Horizonte | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Black Coconut Bunch Weevil sighting in Tijuca National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 95th most-seen of the 132 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May and November–March
In those months about 10% of wildlife watchers report a Black Coconut Bunch Weevil in Tijuca National Park on a given day, against under 5% in April and June–October, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Black Coconut Bunch Weevil sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Tijuca National Park, in our data
Tijuca National Park is the only park on Wallace's Line with enough records to rate Black Coconut Bunch Weevil sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Curculionidae
The closest relatives of the Black Coconut Bunch Weevil that you can see in Tijuca National Park (family Curculionidae, True Weevils) are Ameris ynca (about 10%) and Hypsonotus clavulus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black Coconut Bunch Weevil is recorded against all the insects logged in Tijuca National Park (6 verified sightings from 2019 to 2026), 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.
