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Can't think of anything else that would have the same patterning other than bathyphantes - which can be ruled out by the presence of metatarsal spines.
Shows that even this fairly crisp macro isn't enough to be certain of tibial spine formula, let alone the tricky and tiny sensory hairs often used to split down the linyphiid family (the tricobothria on the first metatarsus should be fairly close to the body end for lepthyphantes/tenuiphantes).
I hadn't thought about inspecting the picture that closely but, now you mention it, there looks to be a long hair (trichobothrium?) at about 0.2 on the right TM1. Doesn't help to get it down to species though.
Is it before or after the spine at the same point?
If there is trichobothria at that point on the metatarsus it doesn't clarify the species, but it does fit well with Lepthyphantes (Tenuiphantes).
Its getting to the point where frame stacked ultra-macros will show the tibial spine formula, and possibly the site of trichobothria, if not the hairs themselves...
There's a spine at about 0.25 but it's pointing up so it's difficult to see. But at about 0.2 there's something long pointing down to the right at about 4 o'clock, but it's not really in focus.
I see what you mean now.. a suggestion of something thin and insubstantial - about right for trichobothria which are often next to invisible - but I would expect trichobothria to be pointing directly upwards (and thus even harder to spot in a dorsal view), unless very badly damaged.
Also.. is it just me or does the distinction between spines and hairs get harder as the magnification goes up?
Thanks for your interest guys. It was fascinating following the exchange of comments. This was just a "grabbed" shot when I was looking for springtails!
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