Psephenops robacki ( Spangler, 1966 ) Barr & Shepard, 2024
publication ID |
https://doi.org/ 10.5281/zenodo.11450152 |
publication LSID |
lsid:zoobank.org:pub:5C9ECB63-6A77-4FF6-8391-BF0F77BE5674 |
DOI |
https://doi.org/10.5281/zenodo.11450190 |
persistent identifier |
https://treatment.plazi.org/id/616D87FE-FFC7-FFDB-FF70-FD54209D3AF3 |
treatment provided by |
Felipe |
scientific name |
Psephenops robacki ( Spangler, 1966 ) |
status |
comb. nov. |
Psephenops robacki ( Spangler, 1966) , new combination
Psephenus robacki Spangler, 1966
( Fig. 17 View Figure 17 )
Type locality. PERU, Huánuco Region, Río Rondos near Tingo María.
Type material examined (photographic). Holotype female. Peru, nr. Tingo / Maria IX-29-55 / Rio Rondos / S. S. Roback // Psephenus / N. SP. / det. PJSpangler // HOLOTYPE / Psephenus / robacki / P.J.Spangler [red label] [ Fig. 17e View Figure 17 ].
Other material examined (n = 7). PERU: Madre de Dios / Manu / July 2005 547 m / Rio Salvacion / 12°50′S 71°21′W / F. Montes & J. Chavez // Psephenops / robacki / W.D.Shepard (1♀, EMEC) GoogleMaps ; PERU: Cusco Region / 3.7 km N Mamabamba / 13 IX 2013 1844 m / unnamed stream / S 13°25.40′ W 70°54.13′ / WDS-A-1925 [on reverse] // William D. / Shepard, leg. (3♀, EMEC) ; PERU: Cusco Region / 10.3 km NE San Miguel / 13 IX 2013 921 m / unnamed stream / S 13°20.57′ W 70°51.54′ / WDS-A-1926 [on reverse] // William D. / Shepard, leg. (1♂, 1♀, EMEC) ; PERU: Región Cusco / Que. [Quebrada] Cadena at Hwy. / 30C SW Vitobamba / −13.3423, −70.8584 / 3-VIII-2022, C.B.Barr (1♂, EMEC) GoogleMaps .
Distribution. Peru, South America.
Remarks. Psephenus robacki was described by Spangler (1966) from three female specimens from the Río Rondos near Tingo María, Peru (Huánuco Region). The holotype ( Fig. 17 View Figure 17 ) and one paratype are at the ANSP; one paratype is at the USNM. Spangler (1966) also described and illustrated a larva, Psephenus sp. larva 1, which was collected in association with adults of the species and assumed to be the larva of P.robacki . At the time, Psephenops was not yet known from South America, and because the type series is female, tarsal modifications particular to Psephenops males are absent. The species rightfully belongs to Psephenops rather than Psephenus based on the morphology of the holotype ( Fig. 17 View Figure 17 ) and Spangler’s illustrations and description. Differences between females of the two genera include the shape and sculpturing of the pronotum, which in Psephenops is more angular laterally and is basally depressed adjacent to a glabrous, shiny median longitudinal carina. We therefore transfer Psephenus robacki Spangler to Psephenops robacki (Spangler) new combination.
We have collected associated male and female Psephenops from one stream in the Cusco Region, Peru, the females of which agree with the species description and the holotype images ( Fig. 17 View Figure 17 ) of P.robacki . At two other nearby sites, and one in the Madre de Dios Region, we collected either males or females. Our collection localities are quite far, roughly 700 km straight line distance, from the type locality. Although we think it likely that our specimens are P. robacki , we cannot be certain unless associated males and females are collected from the type locality. Alternatively, in the absence of males, DNA barcoding might link females from the type locality to males from other localities. Currently P.robacki is the only species of Psephenops known from Peru.
EMEC |
Essig Museum of Entomology |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Psephenops robacki ( Spangler, 1966 )
Barr, Cheryl B. & Shepard, William D. 2024 |
Psephenus robacki
Spangler 1966 |