Philopotinae, Schiner, 1868

Feng, Qi, Zhuang, Jialiang, Shih, Chungkun, Ren, Dong & Wang, Yongjie, 2024, The oldest fossil record of Philopotinae (Diptera: Acroceridae) from the mid-Cretaceous amber of Northern Myanmar, Zootaxa 5497 (3), pp. 435-443 : 438-439

Key to genera of Philopotinae

1. Cubital and medial veins complete, reaching wing margin................................ † Burmophilopota gen. nov.

– Cubital and medial veins not reaching wing margin.......................................................... 2

2. Cell m 3 present.......................................................... † Hoffeinsomyia Gillung & Winterton

– Cell m 3 absent....................................................................................... 3

3. R 1 inflated at pterostigma............................................................................... 4

– R 1 inflated at pterostigma............................................................................... 5

4. Cell d present......................................................................... Helle Osten Sacken

– Cell d absent....................................................... Schlingeriella Gillung & Winterton, 2011

5. The humeral crossvein present........................................................ † Eulonchiella Meunier

– The humeral crossvein absent........................................................................... 6

6. Leg relatively elongate.............................................................. Dimacrocolus Schlinger

– Leg length normal.................................................................................... 7

7. Eyes pilose.......................................................................................... 8

– Eyes apilose......................................................................................... 9

8. Eyes densely pilose....................................................................... Thyllis Erichson

– Eyes sparsely pilose.................................................................... Parahelle Schlinger

9. Vein M 2 present and relatively long........................................................ Megalybus Philippi

– Vein M 2 absent...................................................................................... 10

10. Mouthpart vestigial and non-functional.................................................................. 11

– Mouthpart present and functional....................................................................... 13

11. Three pairs of tubercles present on segments II-IV of the abdomen; occiputextended posteriorly to form an acute ridge ….......................................................................................... Terphis Erichson

– Abdomen without tubercles; occiput rounded, not extended posteriorly......................................... 12

12. Antennae on ventral side of head, adjacent to mouthparts; abdomen conical.................. Quasi Gillung & Winterton

– Antennae on lower front side of head, but not adjacent to mouthparts; abdomen rounded.......... Africaterphis Schlinger

13. Mouthparts shorter than the head....................................................................... 14

– Mouthparts elongated and longer than the head............................................................ 15

14. Postpronotal lobes proximate but not contiguous medially........................ † Archaeterphis Hauser & Winterton

– Postpronotal lobes separated.......................................................... Neophilopota Schlinger

15. Vein R 4+5 reaching wing margin........................................................................ 16

– Vein R 4+5 not reaching wing margin..................................................... † Prophilopota Hennig

16. Palpi present.......................................................................... Oligoneura Bigot

– Palpi absent........................................................................ Philopota Wiedemann