Chalcostephia flavifrons
In 3 days ~50% in a week ~80%
Chalcostephia is a monotypic genus of dragonflies in the family Libellulidae containing the single species Chalcostephia flavifrons. It is known by the common names yellowface and inspector. It is native to central Africa, where it has a widespread distribution. This dragonfly lives in swampy habitats. It is affected by the drainage and reclamation of swamps for agriculture, but it is not considered to be threatened.
Chalcostephia flavifrons is a fairly small species of dragonfly, with a hind-wing length of 24 to 29 mm (0.9 to 1.1 in). The mature adult male is a bluish-grey colour and pruinose (covered with a dusting of wax particles on top of the cuticle). The adult female and the newly emerged male are dark with bold yellow banding. Both males and females can be distinguished from other similar species by their yellow face contrasting with the flattened, metallic green frons (front of the head).
The membranous, veined wings are transparent except for the pterostigmata, a small group of thickened cells at the leading edge of the wing-tips, which have pale centres and dark edges. This species has a widespread distribution over tropical... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | uMkhuze Game Reserve | 🇿🇦 South Africa | |
| 2 | Odzala-Kokoua National Park | 🇨🇬 Republic of the Congo | |
| 3 | iSimangaliso Wetland Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ouagadougou | 🇧🇫 Burkina Faso | |
| 2 | Kampala | 🇺🇬 Uganda |
Possible
About 20% of wildlife watchers report an Inspector sighting in Ouagadougou on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 17th most-seen of the 28 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
July
In that month about 50% of wildlife watchers report an Inspector in Ouagadougou on a given day, against under 5% in February–March, May and November, the lowest months. That is one of Ouagadougou's wettest months, with about 180 mm of rain against almost none in December.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Inspector sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Inspector sightings, Ouagadougou has the highest daily chance: about 20%. Next come Kampala (Uganda, about 20%).
Same family: Libellulidae
The closest relatives of the Inspector that you can see in Ouagadougou (family Libellulidae, Skimmers) are Broad Scarlet (about 40%), Violet Dropwing (about 40%) and Lucia Widow (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Inspector is recorded against all the insects logged in Ouagadougou (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.
