Bombyliidae, Latreille, 1802

Yao, Gang, Luo, Jun, Li, Xuankun & Yang, Ding, 2022, First records of the subfamilies Ecliminae and Lomatiinae (Diptera, Bombyliidae) from China with description of two new species, Zootaxa 5094 (3), pp. 396-408 : 398

Identification key to the subfamilies of Bombyliidae recorded in China.

1 Postcranium flat or tumid, without concavity surrounding occipital foramen ....................................... 2

- Postcranium with deep or shallow concavity surrounding occipital foramen....................................... 7

2 R 4+5 unbranched; palps absent or minute; abdominal spiracles located in tergites; very small, 1–5 mm ..... Mythicomyiinae

- R 4+5 branched; palps present and most often large; abdominal spiracles in pleural membrane........................ ... 3

3 M 2 absent........................................................................................... 4

- M 2 present.......................................................................................... 5

4 Flagellum with subapical sulcus containing a style..................................................... Usiinae

- Flagellum without a subapical sulcus ............................................................ Toxophorinae

5 Flagellum with an apical sulcus containing a style................................................... Phthiriinae

- Flagellum lacking an apical sulcus ........................................................................ 6

6 Body slender, abdomen elongate, slender and slightly tapering towards apex; vein dm-cu strongly curved; flagellum onesegmented; acanthophorite spines apically expanded..................................... Ecliminae (new to China)

- Body broad, abdomen not elongated, stout and strongly tapering towards apex; if body slender and vein dm-cu strongly curved, then flagellum three-segmented; acanthophorite spines apically narrowed, sometimes absent............... Bombyliinae

7 Clypeus reaching base of antennae.................................................. Lomatiinae (new to China)

- Clypeus not reaching base of antennae........................................................... Anthracinae