Continuation of this discussion
from another forum.
Currently on BugGuide, the taxonomy tree for Coccinellidae is simply:
--> various genera
--> Tribe Scymnini
There are no other subfamilies or tribe nodes except Tribe Scymini, and that tribe has no genus nodes (because all the genera are directly under Coccinellidae). Updating the taxonomy tree to include subdivisions between the family and genus levels might be a significant improvement and bring BugGuide's treatment of Coccinellidae in line with that of many other families.
[edit: added this paragraph]
This question was addressed in 2007
, and 14 genera (including 7 in Scymninae) have been added to the Guide since then, so it may be worth bringing up again.
a detailed, subdivided taxonomy list on the Coccinellidae Info page
. It's not up-to-date (Scymninae definitely isn't, I don't know about the rest). Hopefully it can be reviewed, discussed, and updated in this forum. (It doesn't necessarily mean changing the taxonomy tree.)
[edit: removed the Info page taxonomy list to condense space; use the link above to get to it if you're interested]