Syrphidae, Latreille, 1802
|
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.3815661 |
|
persistent identifier |
https://treatment.plazi.org/id/FA02BC3C-C97C-FFA2-97F7-FB974B2304B4 |
|
treatment provided by |
Valdenar |
|
scientific name |
Syrphidae |
| status |
|
Key to the species of Syrphidae View in CoL View at ENA in French Polynesia
1. Postpronotum bare, head posteriorly strongly concave and closely appressed to thorax so that postpronotum is partly or entirely hidden ( Fig. 2 View Fig B–C); male abdomen with five unmodified pregenital segments; tergum 5 visible in dorsal view ( Fig. 2 View Fig A–D).............................................5
– Postpronotum pilose, head posteriorly less strongly concave so that postpronotum is clearly exposed ( Fig. 5 View Fig A–B); male abdomen with four unmodified pregenital segments; tergum 5 usually not visible in dorsal view ( Fig. 5 View Fig D–E, G).......................................................................................2
2. Vein R4+5 strongly sinuate ( Fig. 5A View Fig ); metafemur with basoventral patch of black setulae ........ ................................................................................................. Palpada vinetorum ( Fabricius, 1798) View in CoL
– Vein R4+5 straight or nearly so ( Fig. 5C, E View Fig ); metafemur without basoventral patch of black setulae...............................................................................................................................................3
3. Arista plumose ( Fig. 4E View Fig ); face with medial and two lateral tubercles ( Fig. 4E View Fig ); metafemur not enlarged, without ctenidium; entire body metallic green or purple ( Fig. 4B View Fig ) ................................... .......................................................................................................... Ornidia obesa ( Fabricius, 1775) View in CoL
– Arista bare ( Fig. 4F View Fig ); face carinate ( Fig. 4F View Fig ); metafemur greatly enlarged, with a ctenidium on posteroventral half ( Fig. 5 View Fig B–E); body coloration mainly black with pale markings ( Fig. 5 View Fig B–E, G–H)..................................................................................................................................................4
4. Spurious vein well sclerotized, as distinct as the neighboring R and M veins ( Fig. 5C, G View Fig ); ventral surface of metatibia modified, with anteroventral carina forming a prominent lamina in males, less evident in females. Male: terga 2 and 3 with a broad yellow fascia not divided medially ( Fig. 5G View Fig ). Female: tergum 4 with a distinct yellow fascia on posterior margin ( Fig. 5D View Fig ) .......... ............................................................................................... Syritta aenigmatopatria Hardy, 1964 View in CoL
– Spurious vein not sclerotized, appears as a shadow formed by microtrichia ( Fig. 5B, E View Fig ); metatibia without lamina; terga 2 and 3 with a medial black vitta forming two lateral yellow maculae ( Fig. 5E View Fig ) ......................................................................... Syritta oceanica Macquart, 1855 View in CoL
5. Face and scutellum entirely black in ground color ( Fig. 4A, D View Fig ); metasternum greatly reduced, with deep anterior incision on each side (as in Fig. 9C View Fig ) ......... Melanostoma polynesiotes View in CoL sp. nov.
– Face and/or scutellum partially pale in color, usually yellow in ground color ( Figs 3F, H View Fig , 6E View Fig ); metasternum entire, not reduced.....................................................................................................6
6. Face partly black, usually yellow with a medial black vitta ( Fig. 3B, D, F View Fig ); metasternum with at least some pile; abdomen without margin ( Figs 2 View Fig A–B, 3A).......................................8
– Face entirely yellow ( Fig. 3H View Fig ); metasternum bare; abdomen distinctly marginated on terga 2–5 ( Figs 2D View Fig , 3G View Fig , 5F View Fig )...............................................................................................................................7
7. Katepisternum without a dorsal yellow macula but densely pollinose ( Fig. 5F View Fig ); scutellum usually with black and pale pile; male metatrochanter without any process or projection ( Fig. 6B View Fig ) .......... ..................................................................................... Simosyrphus grandicornis Macquart, 1842 View in CoL *
– Katepisternum with a dorsal yellow macula ( Fig. 3G View Fig ); scutellum with pale pile only; male metatrochanter with a ventral spine-like process or calcar ( Fig. 6A View Fig ) .............................................. ............................................................................................... Ischiodon scutellaris ( Fabricius, 1805) View in CoL
8. Scutum and scutellum entirely black ( Figs 2B View Fig , 6C View Fig ); abdominal terga 3 and 4 black with two small yellow maculae each, close to the lateral margin ( Figs 2B View Fig , 6D View Fig ) ..... Allograpta jacqi View in CoL sp. nov.
– Scutum black with lateral yellow vitta ( Figs 2A View Fig , 3A View Fig ) and scutellum yellow with black medial macula ( Fig. 2A, C View Fig ); abdominal terga 3 and 4 black with a yellow fascia each ( Figs 2A, C View Fig , 3A View Fig )...9
9. Wing entirely microtrichose except cell R bare anterior to spurious vein basally; costal cell bare basally, less than 1/5 .................................................... Allograpta amphotera ( Bezzi, 1928) View in CoL
– Wing partly bare basomedially, cell BM bare on basal ¼–½ or more, cell R bare anterior to bifurcation; costal cell bare on basal ¼ ..................... Allograpta nigripilosa ( Hull, 1944) View in CoL
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.