Rhysodesmus acolhuus ( Humbert & Saussure, 1869 )

John Hollier, Edmund Schiller & Nesrine Akkari, 2017, An annotated list of the Diplopoda described by Aloïs Humbert alone and with Henri de Saussure, and the Diplopoda from Saussure’s Mexico expedition, Revue suisse de Zoologie 124 (2), pp. 203-224 : 204

acolhuus Humbert & Saussure, 1869a: 150 [ Polydesmus (Fontaria) ].

Mexico temperata. Unspecified number of ♂ and ♀.

Saussure & Humbert (1872) gave a more detailed redescription. They stated that they had eight ♂ and seven ♀ from “Moyoapan et Sierra de Agua, près Orizaba” but it is not clear whether this refers to the original series or to a variety described just before this information was given. The MHNG collection has a card-mounted ♂ and at least eight specimens (or parts of specimens) in alcohol (loose in two jars) under the name Fontania acolhuus . The dry specimen is accompanied by a glass vial containing a dry pair of gonopods secured by a pin through the cork stopper. The dry specimen is labelled “Sierra de Agua” and the jars containing the specimens in alcohol are labelled “St Cruz, Mexique” and “Sta Cruz Mexique.” The labels in both jars indicate type material; the dried specimen is also part of the type series. Hoffman (1970: 159) designated one of the ♂ as a lectotype, put in a separate vial in the jar with the label “Lectotype!” There is a ♂ paralectotype in the NHMW (Inventory number 3348, Acquisition number 1866.I.A).

Rhysodesmus acolhuus ( Humbert & Saussure, 1869)