Hello fellow frog forumeers!
Flybyferns recently showed this interesting article about hybridization between A. moreletii and A. annae. It's overall a nice read and I suggest anyone interesting in more than just keeping the frogs to give it a go. However, I stumbled upon something I was totally unaware of, and that I would like to get some clarification on. As far as I knew, the Agalychnis genus currently contained 6 species:
A. salator A. spurelli A. litodryas A. annae A. moreletii A. agalychnis
However, this is from the beginning of the article (which was published on the 11th of February 2011):
There are currently 14 recognized species of Leaf frogs belonging to the genus Agalychnis: Agalychnis annae (Duellman, 1963); Agalychnis aspera (Peters, 1873); Agalychnis buckleyi (Boulenger, 1882); Agalychnis callidryas (Cope, 1862); Agalychnis dacnicolor (Cope, 1864); Agalychnis danieli (Ruíz-Carranza, Hernandez-Camacho and Rueda-Almonacid, 1988); Agalychnis granulosa (Cruz, 1989); Agalychnis hulli (Duellman and Mendleson, 1995); Agalychnis lemur (Boulenger, 1882); Agalychnis medinae (Funkhouser, 1962); Agalychnis moreletti (Dumeril, 1853); Agalychnis psilopygion (Cannatella, 1980); Agalychnis saltator (Taylor, 1955); Agalychnis spurrelli (Boulenger, 1913).
And so the confusion begins. That is 14 species, and it's missing A. litodryas. Moreover, I see some species that confuses me greatly, for example A. lemur. I know there's a species called Hylomantis lemur, but not Aagalychnis lemur. So I turned to good ol' Wikipedia, which states the following:
There used to be 8 species within the Agalychnis genus but a recent major revision of the Hylidae family moved two species to the newly created genus Cruziohyla leaving 6 species in this genus:

Blue-Sided Leaf Frog, Agalychnis annae (Duellman, 1963)
Red-eyed Tree Frog, Agalychnis callidryas (Cope, 1862)
Pink-sided Leaf Frog, Agalychnis litodryas (Duellman and Trueb, 1967)
Morelet's Treefrog, Agalychnis moreletii (Duméril, 1853)
Misfit Leaf Frog, Agalychnis saltator (Taylor, 1955)
Gliding Leaf Frog, Agalychnis spurrelli (Boulenger, 1913)
Lets face it, Wikipedia is not wrong that often, but it seems to be something wrong here, since Wiki shares my view of the Agalychnis genus.
While continuing the confusion, and tried finding something about the Hylomantis lemur, so I Wiki:ed that as well, which gives this, clearly stating that it's a frog within Hylomantis. A searched for Agalychnis lemur gives nothing. I also searched for Hylomantis and now it gets even more interesting. All the species listed within the Hylomantis article, can all be found listen as Agalychnis in the article about hybridization. After some more reading in the article, I found this:
Recent revision has led to the inclusion of the Genus Pachymedusa, and also Hylomantis, now being considered paraphyletic and the synonymy of Agalychnis (Faivovich, et al., 2010).Agalychnis litodryas, which was originally described from one specimen, is now been considered a synonym of Agalychnis spurrelii (Ortega-Andrade, 2008; Faivovich, et al., 2010).
According to this, there's no longer a Hylomantis nor a Pachymedusa genus within the world of frogs, since they all were added to Agalychnis. Since Wikipeda seems to be clueless about this, I tried to find something else to back it up with. I then found the amazing "subwiki" Wikispecies. When reading the article about Agalychnis, it looks exactly like the one in the hybrid article. In addition to this, Hylomantis and Pachymedusa both redirects you to the Agalychnis article. While at Wikispecies, I decided to look up A. litodryas as well, but it redirects to A. spurreli (where Wikipedia have two different articles, claiming they are two different species with different attributes and that they look different from each other).


So, where am I going with this? Well, I just want some confirmation from someone that knows what's up, and that can back it up with some sources, articles, research etc. I would love to know why and when this happened, and how it's possible to merge two species into one, when they look so different from each other. Where there just two different morphs, or how is the logic behind it?
I'm thankful for any answers I get regarding either the species-merge or the genus-merge. I just want to educate myself in a field that I'm very interesting in, and I want to be up to date with the research. Feels bad that I've been walking around thinking I know at least a decent amount about the Agalychnis genus, when I clearly don't!
Lastly, thanks for reading!