Styxia Hull, 1943

Mengual, Ximo, Miranda, Gil Felipe G. & Thompson, F. Christian, 2018, Unraveling Ocyptamus and the Baccha legacy (Diptera: Syrphidae): redefinition of groups and new species descriptions, Zootaxa 4461 (1), pp. 1-44: 15

publication ID

https://doi.org/10.11646/zootaxa.4461.1.1

publication LSID

lsid:zoobank.org:pub:C0F0C0EF-D22C-47ED-9400-F50A8E122DD0

persistent identifier

http://treatment.plazi.org/id/4C610E46-E467-FF8B-FF0F-FCF50997B6DD

treatment provided by

Plazi

scientific name

Styxia Hull, 1943
status

 

Genus Styxia Hull, 1943  stat. rev.

Figs 52–54 View Figure .

Styxia Hull, 1943b: 46  , as a subgenus of Baccha  . Type species: Styxia eblis Hull, 1943b  (original designation).

Ocyptamus  ( Styxia  ). Mengual et al. (2012).

Ocyptamus eblis  species group. Miranda et al. (2016). 

Diagnosis. Wide face (half the width of the head). Eyes usually pilose. Frons swollen and antennal pits separated. Ventral lobe of calypter black. Wing dark with hyaline, bare quadrangular areas. Abdomen spatulate. Abdominal terga with half of basolateral margins pale.

Comments. Although the most distinct and unique feature of Styxia  are the pilose eyes, GFGM is aware of undescribed species that are very similar to S. eblis  but have completely bare eyes.

The original taxonomic status of this name is confusing. In the original key and description (Hull 19 43b: 45– 46) the name is referred to “n. subgen.” but the type species is described as “ Styxia eblis ” ( Hull 1943b: 65)  . Following the International Code of Zoological Nomenclature (1999), Article 23.6, “ the first nomenclatural act taken in respect of a name or a nominal taxon ... constitutes the only valid such act ”. Thus, Styxia  was originally proposed as a subgenus of Baccha  and its relative priority is equal to the other subgenera proposed by Hull in that article ( Hull 1943b).

Species list (3): S. ariela ( Hull, 1944c)  , S. cerberus ( Hull, 1943b)  , S. eblis ( Hull, 1943b)  .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Loc

Styxia Hull, 1943

Mengual, Ximo, Miranda, Gil Felipe G. & Thompson, F. Christian 2018

2018
Loc

Styxia

: 46