I’m back (not that you noticed I wasn’t posting), and can give you the final summary of my field work in Siberia to look for Pellenes jumping spiders: success. It was a challenge. July is past the typical breeding season, and with most males gone to the next trophic level, we were left to look for the harder-to-find females and juveniles. In the end, we found every one of our targets.
I’ve already posted about our finding Pellenes logunovi, P. limbatus, and P. sibiricus, as well as P. gobiensis and P. stepposus. Those we found on the first major trip out from Novosibirsk, to the Altai. For the second major trip, to Tuva, there was one big target left: Pellenes pulcher.
Pellenes pulcher, a member of a distinctive group of species important for my studies, was known from only a few specimens from Mongolia, Kazakhstan, and Russia. The only Russian locality was in the Uvs Nuur basin, a unique area of special steppes and salt lakes that is primarily in Mongolia, but just reaches north into Tuva, a republic in the Russian Federation. The precise locality from which Dmitri Logunov had collected it more than 20 years ago was right along the Mongolian border where Uvs Nuur Lake peeks into Russia.
As happened with P. logunovi and P. gobiensis, Galina Azarkina saved the day by finding the first female of P. pulcher, thereby figuring out that they live on the rocks of their strange steppe habitat: the tiny round woody “bushes” of Nanophyton, only a centimetre or two tall, dot the landscape, making it look like a bonsai savannah. In the end we got one male and four females. As its name suggests, P. pulcher is beautiful both in appearance (striped!) and personality (vivacious! — they hop a lot). Above is the male; here is the female and other views of the male. Notice the elegantly long first legs of the male, and his reddish jaws.
And so, in the end, we got 7 species of Pellenes. Here are the other 6, in retrospect.
We got only females and juveniles. Here are two females to show variation in colours.
Closely related to the well-known European P. tripunctatus, we got only a few, but both males and females.
We found just three, two old decrepit males, and a juvenile female. I kept the female alive, and am feeding it in hopes it will mature.
We got only females and babies.
Although this is currently considered a Pellenes, I suspect this isn’t a Pellenes, but rather a Sibianor. It was common on bushes in the drier steppes.
I’m not sure about the identity of this. We found four juveniles, including this one, in the Altai. They look similar to P. epularis that Galina found recently in Kazakhstan. I am trying to raise them to maturity to figure out what they are.