Scatellini Wirth and Stone
Creators: name: Zatwarnicki, Tadeusz
name: Mathis, Wayne N.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ephydridae

description: Key to Genera and Subgenera of Scatellini Wirth and Stone
1. Mesonotum bearing 2 rows of acrostichal setae extended to anterior margin of scutellum, setae subequal in length........ 2
- Mesonotum bearing 2 rows of acrostichal setae not extended to anterior margin of scutellum, usually with 1 larger, sutural acrostichal seta (Scatella Robineau-Desvoidy, in part)....................................................... 11
2. Arista shorter than basal flagellomere. Frontal vitta as high as wide.............................................. 3
- Arista longer than basal flagellomere. Frontal vitta wider than high.............................................. 4
3. Pedicel with a long dorsal seta, subequal to length of arista. Apical scutellar seta longer than basal seta................................................................................................ Scatella (Synhoplos) Lamb
- Pedicel with short dorsal seta, shorter than the length of arista. Apical scutellar seta same length of basal seta, small............................................................................................... Tauromima Papp
4. Costa short, extended to or slightly beyond apex of vein R 4+5 ..................................... Scatophila Becker
- Costa longer, extended to apex of vein M.................................................................. 5
5. Arista pectinate above................................................................... Philotelma Becker
- Arista bare to macropubescent........................................................................... 6
6. Only 1 lateroclinate fronto-orbital seta present. Wing infuscate, darker on anterior margin and lighter on posterior margin with distinctive pattern of numerous pale spots.................................................... Limnellia Malloch
- Two or 3 lateroclinate fronto-orbital setae present. Wing hyaline to faintly infuscate or with pattern of a few pale spots..... 7
7. Gena usually bears a long distinct seta, longer and stronger than other genal setae or setulae. Postsutural supra-alar seta subequal to length as postalar seta........................................................ Scatella (Parascatella) Cresson
- Gena without long, strong seta, with a series of uniform fine hairs. Postsutural supra-alar seta shorter than half length of postalar seta................................................................................................ 8
8. Posterior notopleural seta much farther dorsad from ventral notopleural suture than anterior seta....................... 9
- Anterior and posterior notopleural setae equidistant from ventral notopleural suture................................ 10
9. A strong, conspicuous, dorsally curved seta toward anterodorsal corner of anepisternum; prescutellar acrostichal setae long, conspicuous.......................................................................... Haloscatella Mathis
- Seta toward anterodorsal corner of anepisternum indistinguishable from surrounding setae; prescutellar acrostichal seta subequal to length of other acrostichal setae.......................................................... Amalopteryx Eaton
10. Posterior fronto-orbital seta closer to medial vertical seta than to anterior fronto-orbital seta. Frontal vitta shiny............................................................................................... Thinoscatella Mathis
- Posterior fronto-orbital seta closer to anterior fronto-orbital seta than to medial vertical seta. Frontal vitta microtomentose, appearing dull...................................................................... Lamproscatella Hendel
11. Scutellum with 3 pairs of scutellar seta, these subequal in length; mesonotum covered by scattered setulae, not forming a row of acrostichal and intra-alar setae................................................ Scatella (Teichomyza) Macquart
- Scutellum with 2 pairs of scutellar seta, basal pair shorter than apical pair; acrostichal and intra-alar setae present, in small rows.............................................................................................. 12
12. Wing slightly infuscate with few to several distinct pale spots. Sutural acrostichal seta present, conspicuously longer than other acrostichal setae (if absent, presutural dorsocentral seta present).................. Scatella (Scatella) Robineau-Desvoidy
- Wing hyaline, without pale spots. Sutural acrostichal seta present, weak or indistinguishable from other acrostichal setae................................................................................. Scatella (Apulvillus) Malloch
description: Published as part of Zatwarnicki, Tadeusz & Mathis, Wayne N., 2024, Revision of the Nearctic Species of the Shore-Fly Genus Scatophila Becker (Diptera: Ephydridae), pp. 1-100 in Zootaxa 5487 (1) on page 8, DOI: 10.11646/zootaxa.5487.1.1, http://zenodo.org/record/13210771