With Jacana (second photo).
Young queen after the rainy season, ready to defend the future of the colony.
Blurry cell phone photo. But the shape, iridescent colors and antennas are very characteristic.
This insect is known as "guitar player" because of the sound it makes.
Here is a real photo:
Macraspis is a genus in the subfamily Rutelinae, in the family of scarabs. iNat says it's a type of flatworm ... the site does not classifies it as an insect.
Found this dead frog on the floor of the university. It was dusty in the fingers, looks like it was hit by a broom and then swept.
Was about 8 inches and very yellow. Why people do this sort of thing with such wonderful creatures? Always the same sad reaction...
They are native to Argentina, Bolivia and Brazil. It is affected by "chicharrita de la espuma" (Cephisus siccifolius) - in their state of larva they suck the sap and excrete a sugary liquid known as "llanto de las tipas". The drops are like water, not sap. Although I learned later that was sprayed with insect crap, have to admit it was ... refreshing!