Did you mean: Psammodes, Psammodus or Psamodus?
 1. On the type species of Geophilus Gistel, 1834 (Coleoptera: Scarabaeidae: Aphodiinae).
Nardi G, Dellacasa G, Dellacasa M Zootaxa, 2018 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0
2. Status of the new genera in Gistel's "Die Insecten-Doubletten aus der Sammlung des Herrn Grafen Rudolph von Jenison Walworth" issued in 1834.
Bousquet Y, Bouchard P ZooKeys, 2017 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0
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