''Melychiopharis cynips'' is an ant-mimicking

spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...

from

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. It was briefly transferred from the family

Araneidae Orb-weaver spiders are members of the spider family Araneidae. They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields, and forests. The English word "orb" can mean "circular", hence the English name ...

to Theridiidae between 2002 and 2005, based mainly on characteristics of the male palp.

References

* Santos, A.J., Brescovit A.D. & Levi, H.W (2005). ''Melychiopharis'': an atypical orb-weaving spider from South America (Araneae: Araneidae). ''Zootaxa'' 1016:57–6
Abstract
Araneidae Spiders of Brazil Spiders described in 1895 {{Araneidae-stub