Polybia occidentalis is a swarm-founding advanced eusocial wasp. Swarm-founding means that a swarm of these wasps find a nesting site and build the nest together. This species can be found in Central and South America. P. occidentalis prey on nectar, insects, and carbohydrate sources while birds and ants prey on and parasitize them. A fun fact is that workers bite each other to communicate that it is time to start working.
Melanis is a genus in the butterfly family Riodinidae present in the Neotropical ecozone, and a stray into southern portions of the United States, and ranges south to Panama. Its habitats are subtropical, and its host plants are tree Leguminosae, restricted to one species: Pithecellobium dulce. There are multiple flights all year in s. Tex, but only after several years without frost so adults move north from Mexico.
Oh, I found this wonderful tool called the Pacific Northwest Fungi Database, and you can look up documented local (for me, because I'm in the PNW) pathogens for your species. For Rumex it lists Puccinia acetosae, Uromyces rickerianus, Venturia rumicis, and Ramularia rubella. And by far I think it looks the most like R. rubella.
Colors aren't always true in photos, especially since the greens in the photos look fairly fluorescent. Are there other species it could be? I have yet to find any photo of the species you suggested that doesn't have a heavily spotted back. Including references with your suggestions would be way more useful than you always recommending people to buy books. We can't look at the book online, and it's very impractical for people to buy books on birds for tons of places. A reference would tell us about the species you are suggesting much easier
For the developers at New York start-up Networked Organisms, smartphones are the butterfly nets of the 21st Century. Their tool, Project Noah, lets people upload photos of plants and wildlife around them, creating a map of the natural world and contributing to scientific research in the process.
Bespectacled scientists of yore would carry around hefty field guides, made up of hundreds of pages of text and photos. But these days, smartphone owners have a lighter option: an app called Project Noah, which aims to help people identify plants and animals as well as collect data from "citizen scientists" about where certain species are located.
Project Noah enables us to be part of a more focused online community where we can learn more about wildlife around us and contribute to scientific research. It pulls participants into deeper, more meaningful engagement by enabling people to go on “missions” to collectively map changes based on sightings.
A modern invention that may also hold the key to saving species in the future. Project Noah is a global study that encourages nature lovers to document the wildlife they encounter, using a purpose built phone app and web community. In addition to the virtual "collection" of species, Project Noah encourages citizen science by linking up with existing surveys including the International Spider Survey and the Global Coral Reef Monitoring Network.