27000 images of jumping spiders

announcementImagesOver the years, I’ve tried to take photographs of living males and females of every species of jumping spider collected on most of our expeditions. This amounts to many hundreds of species, some of them poorly known or entirely undescribed. In total, I have about 27000 digital or digitized photographs of salticids, some going back to the 1970’s.

There has been no point in keeping them secret, but any system of organizing them for release was hampered by the lack of a good taxonomic organization of the family. Now that I have published a new salticid classification, that problem is solved. Thus, I am releasing most of my photos here: http://salticidae.org/salticidImages. They are released under a Creative Commons license so that they may be re-used. My hope is that they will be useful to other arachnologists in their research, and that arachnological elves will incorporate them into Wikispecies and other places.

As noted, this collection includes many images of undescribed species. If you plan to describe some of these species, please contact me first, because I may already be preparing a species description. Consider this as a fair exchange, because if I am not describing the species, then you are welcome to use the photographs in your own publication describing the species.

A new phylogenetic classification of jumping spiders

announcementYesterday, my paper on the classification of jumping spiders was released online; the paper publication is 25 November. It’s good old-fashioned taxonomy/systematics, finished with hand-carved wood, and leather, and brass, but on the inside is phylogenetics, the union of my 44 years of looking at spider bodies and our 20 years of molecular phylogenetic work. It is the first new complete classification of the family published since 1903, and implicitly the first phylogenetic treatment of all 600-plus genera. The paper is available online here.

I expect that, among all the works in my career in empirical, theoretical and computational systematics, this paper will give me the most pride, and will best give the spiders the honour they deserve.

The new Andean jumping spider genus Urupuyu and a revised classification of the Amycoida


Urupuyu edwardsi, male. © 2015 W. Maddison, Creative Commons Attribution (CC-BY) 3.0 license

In the cloud forests of Ecuador we found, in 2004 and 2010, some small shiny black jumping spiders that we couldn’t recognize. Gustavo Ruiz and I have just published a paper describing them as the new amycoid genus Urupuyu, from the Quechua words for spider (uru) and cloud (puyu). This paper does a lot more than that, however. We take the opportunity to do a phylogenetic analysis of the whole clade of amycoids, and present, finally, a comprehensive phylogenetic classification of the group. I’m proud of what Gustavo and I accomplished with this paper, as it is a major step forward for salticids in the Americas.

Ruiz GRS, Maddison WP. 2015. The new Andean jumping spider genus Urupuyu and its placement within a revised classification of the Amycoida (Araneae: Salticidae). Zootaxa 4040: 251–279.