10 de febrero de 2023

30 de enero de 2023

Watercress - N. officinale or floridanum

If you want the best way to tell them apart, find some with emersed grown stems and take a picture of the joint on those (as it can be hard to see on submersed growth). If the auricle (the little flap at the crease of the joint) is there, then it’s regular N. officinale. But if it’s totally smooth, it’s N. floridanum!

Publicado el 30 de enero de 2023 12:57 por mfeaver mfeaver | 3 comentarios | Deja un comentario

10 de enero de 2023

18 de diciembre de 2022

Fishing spider - specimen for Ray Fisher

Hi and thank you for the reply. I'll accept dead or alive, but I prefer alive. I may be able to get free overnight shipping. I'll give more instructions on shipping when/if you can get some specimens.

Waiting until January is no problem. There's no rush.

At present, we only have some DNA gathered from 23 specimens across eastern US and Canada. Although they are closely related to six-spotted fishing spiders (D. triton), they might be a new, undescribed species of Dolomedes! How have they gone undetected? Perhaps because they resemble juveniles Dolomedes. All we have are these two photos to aid the search:


To my eye, some of your iNat observations resemble these photos. Here are some examples:

Most probably, most of these are in fact juveniles. But with a little luck and a lot of specimens, maybe we can get specimens of the new species!

Happy hunting!



Publicado el 18 de diciembre de 2022 13:43 por mfeaver mfeaver | 0 comentarios | Deja un comentario

7 de diciembre de 2022

Bumbee Bee ID'

Publicado el 7 de diciembre de 2022 17:33 por mfeaver mfeaver | 0 comentarios | Deja un comentario