Yeah, I know these pictures aren't really good enough to identify, but I figured it would be useful to share these just to get the species on the web-- this was the first time anyone had caught this species in decades! (I've since found them in another site.) You can't really see it here, but L. shermani have a reddish tint to their genitalia and their legs (tibiae, base of femur).
The L. shermani were up on the sandy / leaf littery forest trail and along a seep up there, well above the main river. Along the actual main river banks (both pure sand and rocky) you mostly got a different species (L. schizopygus).
TAM_705c. Specimens collected and sequenced.
First found at this location by @whatch11. Thanks Wes!
Seemingly on territory on a rock in a small tributary.