Table 1 Summary of representative antennae in the lower Hymenoptera.
Family | Antenna type | Length ratio of the composite first flagellomere to the second | Width ratio of the composite first flagellomere to the second |
|---|---|---|---|
Xyelydidae | xyelid-like | long, at least 3.5 times except for Ferganolyda with the first at most as long as the second | almost 1.7 times |
Megalodontesidae (except Megalodontes and Archoxyelyda) | xyelid-like | obviously long, at least 2.6 times | 1.4~1.8 times |
Pamphiliidae | filiform | short, 1.5~3.5 times, sometimes equal | 1~1.6 times |
Megalodontesidae (Megalodontes) | plumose | 1.0~2.3 times | almost equal |
Mirolydidae | filiform | 5.4~6.2 times | 0.9~1 times |
Xyelidae | xyelid-like | extremely long, at least 10 times | at least 2.5 times |
Tenthredinidae | filiform | 1.19~2.25 times | 0.7~1 times |
Xiphydriidae | filiform | 1.6 times | almost equal |
Cephidae | filiform | 0.94 times | 1.1 times |
Siricidae | filiform | almost equal | almost equal |
