Pachygnathus Dugès, 1834

Uusitalo, Matti, Ueckermann, Edward A. & Theron, Pieter D., 2020, A review of the family Alycidae (Acari, Acariformes) from South Africa, Zootaxa 4858 (3), pp. 301-340 : 305

publication ID	https://doi.org/10.11646/zootaxa.4858.3.1
publication LSID	lsid:zoobank.org:pub:7BA52F1C-4084-4915-A7D9-8DA99379086B
DOI	https://doi.org/10.5281/zenodo.4412365
persistent identifier	https://treatment.plazi.org/id/AC6C87BA-C460-EB68-FF1C-66F411BBD20E
treatment provided by	Plazi (2021-01-03 15:43:19, last updated 2024-11-26 05:11:53)
scientific name	Pachygnathus Dugès, 1834
status

Treatment

Type species: “Pachygnathe velu” Dugès , 1834 (= Pachygnathus villosus Dugès [in: Oken], 1836) from France; by monotypy .

Differential diagnosis. The genus can be segregated from the other genera of the family by the beak-like chelicera ( Fig. 18 View FIGURES 16−22 ; Uusitalo 2010: fig. 3), small, fork-like rutella and less than six sparsely barbed eupathids on the palpi ( Fig. 19 View FIGURES 16−22 ; Uusitalo 2010: fig. 63).

References

Uusitalo, M. (2010) Revision of the family Alycidae (Acariformes, Acari), with special reference to European species. PhD thesis, Helsinki University Print, University of Helsinki, Helsinki, 143 pp. Available from: http: // ethesis. helsinki. fi (accessed 20 January 2020)

Figures

FIGURES 16−22. Pachygnathus nasutus sp. nov. 16—Prodorsum, sclerotized crista, filamentous sensilla ve and sci ciliated, setae exp small; 17—Swollen naso; 18—Beak-like chelicerae, typical to genus; 19—Palp tarsus with 4 pseudacanthoid eupathids; 20—Subcapitulum, 1 pair of adoral setae; 21—Genital valve of female, 13 genital setae, 2 eugenital setae; 22—Tarsus I (2 solenidia), famulus I (arrow), Tibia I (2 solenidia).