As of late, I’ve been falling down a rabbit hole of organisms with interesting methods of camouflage.
I’m quite fond of organisms that mimic moss or lichens, such as Trychopeplus laciniatus or Anaphidna verrucosa. However, earlier today I discovered Siamusotima aranea, a spider-mimicking moth. As a moth enjoyer myself, I thought that was pretty cool!
Fer-de-lance, also called Terciopelo. It’s a pit viper, with venom that can cause gangrene in humans. At La Selva Biological Station, Costa Rica, there was a notice on the bulletin board; it read, “Can you find the terciopelo in this picture?” It was a photo of a rainforest trail covered with leaf litter. I stared at it for whole minutes before I finally found the terciopelo – right in the center, lying exposed in the open, so perfectly matching the leaf litter that it was virtually invisible. The message of the notice was always to wear your boots when walking outside, even just from your room to the dining hall.
Spiders in the genus Castianeira (the so-called ant-mimicing sac spiders) might be my favorites for the sole reason that most of them aren’t fooling anybody. Their camouflage is generally pretty bad. Castianeira trilineata being the exception (it actually mimics fire ant coloration quite well), most of them are very obviously spiders at first glance. Despite that, many of them adopt ant-like behaviors (perhaps hoping their acting skills might make up for the poor costume design). Since bad camouflage is generally not an adaptive trait, it’s actually kind of unique to see a natural example of camouflage that’s anything less than perfect.