Allograpta
Creators: name: Mengual, Ximo
name: Ruiz, Carlos
name: Rojo, Santos
name: Ståhls, Gunilla
name: Thompson, Christian
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Allograpta

description: Key to the subgenera and species groups of Allograpta
1. Metasternum pilose; plumula present and well developed ........................................................................................... 6
- Metasternum bare; plumula absent or very short.......................................................................................................... 2
2. Wing extensively bare basally; antennal pits confluent................................................................................................ 4
- Wing completely microtrichose; antennal pits separate. Alula narrow, narrower than cell BM .................................. 3
3. Face with abrupt tubercle; abdomen parallel-sided (fig. 3) ............................................................................ Costarica
- Face with indistinct or no tubercle (fig. 9–10); abdomen petiolate (fig. 5) .............................................. Rhinoprosopa
4. Alula narrow, as wide as costal cell; male broadly dichoptic; wing without distinct apical macula .............................. ............................................................................................................................................ Allograpta, ventralis group
- Alula broad, broader than costal cell, as broad or broader than cell BM; male holoptic; wing with distinct apical brown macula ................................................................................................................................................................ 5
5. Face produced anteriorly; oral apex distinctly more prominent than antennal bases; oral opening 3.5 times longer than broad (fig. 6); large flies, 13 mm or greater ................................................................................................ Antillus
- Face straight, not produced anteriorly; oral apex distinctly less prominent than antennal bases; oral opening only about 2 times as long as broad; small flies, 6 mm or less ................................................ Allograpta, alamacula group
6. Face produced forward; oral apex distinctly more prominent than antennal bases; oral opening 3 or more times lon- ger than broad; facial tubercle high, distinctly differentiated (fig. 7) .................................................................... Fazia
- Face straight, not produced forward; oral apex distinctly less prominent than antennal bases; oral opening only about 2 times as long as broad; facial tubercle usually low (except armillata), not differentiated dorsally (figs. 1, 8) ........ 7
7. Abdomen oval, with 4 pairs of large round maculae (fig. 4); large flies, 13 mm ..................................... Claraplumula
- Abdomen elongate, tapering, usually with fasciae and/or vittae (fig. 1); smaller flies, usually 10 mm or less ............. .............................................................................................................................................. Allograpta, obliqua group
description: Published as part of Mengual, Ximo, Ruiz, Carlos, Rojo, Santos, Ståhls, Gunilla & Thompson, Christian, 2009, A conspectus of the flower fly genus Allograpta (Diptera: Syrphidae) with description of a new subgenus and species, pp. 1-28 in Zootaxa 2214 on page 12, DOI: 10.5281/zenodo.189912