On our last day in Texas, we visited the famous National Butterfly Center (NBC), located near McAllen, to search for south Texas butterflies and odonates. The NBC is a huge native plant garden, managed for the incredibly diverse butterfly fauna of south Texas. To date, they have recorded 235 species on the one hundred acre property, which is probably more than anywhere else in the United States. When we stepped out the back door of the center into the gardens, butterflies swarmed everywhere. I watched more than one hundred queen butterflies clustered on a flower-laden bush. Lesser numbers of monarchs and soldiers were mixed in with the queens. Smaller sulphurs, skippers, crescents and hairstreaks darted through the air around us. Many of the species that were most common there were nearing the northernmost extent of their range, making them special prizes for the butterfly enthusiast that doesn’t plan on going to Mexico. All the new and exotic looking butterflies made it hard to concentrate on photographing just one species at a time. As soon as one of the more abundant species, such as a little yellow, or a large orange sulphur landed, something else of interest would fly right in front of my face.
We wandered through the garden towards a trickle of water coming out of the woods, which we hoped would hold some dragonflies. Sure enough, as we approached we saw rosette and carmine skimmers flying long fluid loops above it. When we inspected the pool more closely, we found a desert firetail perched on a rock. I slipped my leg into the pool to get closer for a photograph of this completely red southwestern damselfly. Suddenly, I began to feel movement on my legs. Looking down, I realized I’d stepped in a fire ant nest for the second time in two days. I was able to get them off me before they really started to hurt, but so much for my desert firetail photos. A dazzling mallow scrub-hairstreak perched in perfect lighting nearby quickly made up for it, though.
We turned away from the open gardens, onto a sand trail that led through subtropical hackberry woodlands. We saw logs, coated in some sort of sugar goop, propped up next to the trail every hundred feet or so. These logs were always swarming with tropical leafwings and hackberry and tawny emperors. Occasionally, a three-inch long, iridescently colored wasp would buzz by or land on one of the sugar logs. A sign farther on advertised them as tarantula hawks, (Pepsis sp), capable of the second most painful sting of any insect in the world. They apparently prey mainly on the Texas brown tarantula in North America. Off to our right, a brilliant blue flash caught my eye. Turning, I saw a medium sized blue butterfly flitting about, the filtered sunlight glinting off its wings. It was a Mexican blue-wing, one of the species I was most excited about seeing.
Soon, we approached a group of people standing on the trail and looking at something in the trees above them. They pointed us to a malachite, a huge spectacular butterfly, the color of the mineral it was named after. Black mottling accented its light green wings. Unfortunately, it flew off before I could get a picture. We came out of the woods on the other side into more gardens swirling with butterflies. Someone showed us a clytie mini streak perched on the tiny flowers of a bush. Hairstreaks are my favorite group of butterflies, so this little gem was a special treat.
We wandered back through the gardens, stopping every now and than to photograph something new. When we reached the NBC building, we stopped at a little concrete lined pond in front of it. We knew a damselfly called the Caribbean yellow-face could be found around here somewhere, but we weren’t sure exactly where. We checked the pond, and to my surprise, we saw a tiny blue damselfly with a bright yellow face zipping away from us. By mid afternoon, I was feeling ready to fall asleep in the heat, especially after getting up at four AM for the past five days. We had seen forty-one species of butterflies. Most of them were new for me, and many of them were very rare in most of the country. I wasn’t able to include all the pictures I took at the NBC, but if you are interested, you can look at more of them here: RGVBF 2017 flickr.