Sphegina (Asiosphegina) tenuis Brunetti, 1915

Steenis, Jeroen Van, Hippa, Heikki & Mutin, Valeri A., 2018, Revision of the Oriental species of the genus Sphegina Meigen, 1822 (Diptera: Syrphidae), European Journal of Taxonomy 489, pp. 1-198 : 177

publication ID

https://doi.org/ 10.5852/ejt.2018.489

publication LSID

lsid:zoobank.org:pub:B234C53F-BB56-4F3D-B400-F214E19DCF90

DOI

https://doi.org/10.5281/zenodo.3850133

persistent identifier

https://treatment.plazi.org/id/03AF879D-1990-FF57-6837-A16E73F9F87D

treatment provided by

Valdenar

scientific name

Sphegina (Asiosphegina) tenuis Brunetti, 1915
status

 

Sphegina (Asiosphegina) tenuis Brunetti, 1915 View in CoL

Sphegina tenuis Brunetti, 1915: 224 View in CoL . Type locality: India, Darjiling (holotype, ♂, NZSI).

Type material

The holotype from India was not examined by us, but is redescribed based on data in the literature.

Differential diagnosis

See under the Remarks below.

Description

Male

See also Brunetti (1915, 1923).

LENGTH. Body 4.5 mm.

HEAD. Face in lateral view clearly concave. Face black, light grey pollinose. Hypostomal bridge black. Gena black, mouth edge red-brown. Frons dull black, grey pollinose. Occiput grey. Antenna black, arista long.

THORAX. Colour black, weakly greyish pollinose, with denser grey pollinose vitta submedially; pleuron with greyish pollinosity and grey-yellowish pile.

WING. Entirely hyaline, stigma yellowish.

LEGS. Pro- and mesoleg yellow, tarsi with tarsomeres 4 and 5 black. Metaleg with coxae black; femur basal half yellow, apical half black, incrassate; metatibia black and yellow biannulate; metatarsus entirely black, basitarsomere rather thick.

ABDOMEN. Terga black; tergum II slightly constricted anteriorly and very long; tergum III with sub-basal yellow fascia. Genitalia large, apparently globular.

Female

Unknown.

Remarks

Only the holotype male of Sphegina (Asiosphegina) tenuis from Darjeeling, India, is known. By the hyaline wing, yellow pro- and mesolegs with two black apical tarsomeres and sub-anterior yellow fascia on tergum III it recalls other small species like Sphegina (Asiosphegina) minuta , S. (A.) pusilla and S. (A.) philippina but differs by the mesonotum sub-shiny with three grey-pollinose vittae and the metafemur yellow basally and black apically.

The synonymy with Sphegina (Asiosphegina) javana ( Pape & Evenhuis 2018) is rejected based on the bicoloured metafemur (biannulate in S. (A.) javana ); the black face (yellow S. (A.) javana ) and the yellow sub-anterior fascia on tergum III (anterior in S. (A.) javana ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Sphegina

Loc

Sphegina (Asiosphegina) tenuis Brunetti, 1915

Steenis, Jeroen Van, Hippa, Heikki & Mutin, Valeri A. 2018
2018
Loc

Sphegina tenuis

Brunetti E. 1915: 224
1915
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF