Baccha placiva, Williston, 1888

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: 20

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-E47A-FF96-FF0F-FCF00F87B601

treatment provided by

Plazi

scientific name

Baccha placiva
status

 

placiva Williston, 1888  [incertae sedis]

Figs 71, 75, 77 View Figure .

Baccha placiva Williston, 1888: 269  . Type-locality: Brazil, Mato Grosso, Chapada [LT ♂ AMNHAbout AMNH]  . Lectotype ♂ here designated.

Ocyptamus placivus  . Thompson et al. (1976: 25).

Hybobathus placivus  . Miranda (2017: 55).

Comments. Baccha placiva Williston  was described from a male and a female. A male deposited in the AMNHAbout AMNH and labeled “Chapada” “ TYPE // No. // A.M.N.H.” [red] “S.W. Williston // Collection” “Am. Mus. Nat. Hist. // Dept. Invert. Zool. // No. 19166 ” “ Lectotype // Baccha placiva Williston  // Des. G.F.G. Miranda, 2017 ” is here designated lectotype and has been so labeled. This lectotype designation is made in order to fix the concept of placiva  and to ensure universal and consistent interpretation of the same.

Morphological evidence brings this species close to conjunctus Wiedemann  and grata Curran. Besides  the similar scutum and abdominal pattern, and the mostly hyaline wing with slightly sinuous veins R4+5 and M1, male genitalia have a more sclerotized phallus and have lateral lobes on the hypandrium, as in those two other species. The evidence is still weak to support a taxon comprising these three species; furthermore, placiva  has a regular antenna when compared to the other two species.

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Baccha

Loc

Baccha placiva

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

2018
Loc

Baccha placiva

Williston, 1888 : 269

Loc

Ocyptamus placivus

Thompson et al. (1976 : 25

Loc

Hybobathus placivus

Miranda (2017: 55)