Numbers
~104 spp. in 12 genera north of Mexico; 20 genera worldwide
(1)(2)
1. Bioblapsis (1 sp.)
2. Campocraspedon (2 spp.)
3. Diplazon (18 spp.)
4. Enizemum (8 spp.)
5. Phthorima (6 spp.)
6. Promethes (4 spp.)
7. Sussaba (10 spp.)
8. Syrphoctonus (40 spp.)
9. Syrphophilus (5 spp.)
10. Tymmophorus (6 spp.)
11. Woldstedtius (3 spp.)
12. Xestopelta (1 sp.)
Identification
With 3-toothed mandibles and a box-like first
tergite.
Remarks
Larval host: aphidophagous (aphid-eating) Syrphidae