Simosyrphus grandicornis ( Macquart, 1842 )

Ramage, Thibault, Charlat, Sylvain & Mengual, Ximo, 2018, Flower flies (Diptera, Syrphidae) of French Polynesia, with the description of two new species, European Journal of Taxonomy 448, pp. 1-37 : 22-24

publication ID

https://doi.org/ 10.5852/ejt.2018.448

publication LSID

lsid:zoobank.org:pub:413AE92E-862A-4879-B72F-1C0DCF1F7240

DOI

https://doi.org/10.5281/zenodo.3815673

persistent identifier

https://treatment.plazi.org/id/FA02BC3C-C970-FFAF-955A-FB474B250492

treatment provided by

Valdenar

scientific name

Simosyrphus grandicornis ( Macquart, 1842 )
status

 

Simosyrphus grandicornis ( Macquart, 1842) View in CoL

Figs 5F, I View Fig , 6B View Fig

Syrphus grandicornis Macquart, 1842: 96 View in CoL (holotype: ♂, MNHN; type locality: Australia, Sydney, Port Jackson).

Syrphus sydneyensis Macquart, 1846: 263 View in CoL .

Syrphus pusilla Macquart, 1847: 77 .

Syrphus melanurus Bigot, 1884: 97 View in CoL .

Syrphus obesus Hutton, 1901: 41 View in CoL .

Syrphus vitiensis Bezzi, 1928: 71 View in CoL .

Ischiodon scutellaris Bryan, 1934: 412 View in CoL .

Metasyrphus fasciatus Shiraki, 1963: 186 View in CoL .

Syrphus australiensis Van der Goot, 1964: 220 View in CoL .

Syrphus huttoni Van der Goot, 1964: 220 View in CoL .

Differential diagnosis

Simosyrphus grandicornis has often been confused with species of Ischiodon , especially I. scutellaris , as they are sympatric and the males of both species have large genitalia. The morphological characteristics to distinguish S. grandicornis are the broadly rounded basoflagellomere (subacute apically in I. scutellaris ), black katepisternum ( Fig. 5F View Fig ) (with a dorsal yellow marking in I. scutellaris ; Fig. 3G View Fig ), simple male metatrochanter ( Fig. 6B View Fig ) (with a spine-like process in I. scutellaris , Fig. 6A View Fig ) and black metafemur, yellow on the apical fourth (mostly yellow, black only subapically in I. scutellaris ).

Material examined

Not collected or studied from French Polynesia, but Nishida (2008) reported it from the Society Islands. We believe that Nishida’s records might be a misidentification of I. scutellaris .

Geographical distribution

Very common Australasian species, found throughout Oceania (from New Caledonia and Fiji to Hawaii), New Zealand and Australia (all states). Simosyrphus grandicornis is absent from the island of New Guinea.

Status in French Polynesia

Unknown.

Flowers visited

No records.

References

Nishida 2008 (list).

Remarks

Among the material examined there were no individuals of this species from French Polynesia; thus, we believe that S. grandicornis is not present in the archipelago. Mengual (2015) stated that the dispersal of this species into many of the occupied Oceanic islands in its range was due to human activities, probably introduced by the early Polynesians who might have brought them in as larvae on fruits and plants they were transporting. Because it is plausible that S. grandicornis will reach the islands of French Polynesia in the near future, we have included this species in the identification key (indicated with an asterisk *).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Simosyrphus

Loc

Simosyrphus grandicornis ( Macquart, 1842 )

Ramage, Thibault, Charlat, Sylvain & Mengual, Ximo 2018
2018
Loc

Syrphus australiensis

Van der Goot V. S. 1964: 220
1964
Loc

Syrphus huttoni

Van der Goot V. S. 1964: 220
1964
Loc

Metasyrphus fasciatus

Shiraki T. 1963: 186
1963
Loc

Ischiodon scutellaris

Bryan Jr. E. H. 1934: 412
1934
Loc

Syrphus vitiensis

Bezzi M. 1928: 71
1928
Loc

Syrphus obesus

Hutton F. W. 1901: 41
1901
Loc

Syrphus melanurus

Bigot J. M. F. 1884: 97
1884
Loc

Syrphus pusilla

Macquart P. J. M. 1847: 77
1847
Loc

Syrphus sydneyensis

Macquart P. J. M. 1846: 263
1846
Loc

Syrphus grandicornis

Macquart P. J. M. 1842: 96
1842
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF