| 21. | Their eyes are relatively small and their antennal scapes are half as long as their heads.
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| 22. | Some evidence of early evolutionary history is the structure of the antennal heart, a separate antennae.
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| 23. | In the Chrysopsinae, the antennal flagellum has a basal plate and the flagellum has four annuli.
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| 24. | The local neurons, which are primarily inhibitory, have their neurites restricted to the antennal lobe.
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| 25. | The space between its compound eyes is about a third of the distance between its antennal sockets.
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| 26. | It lacks hinaria on its eighth antennal segment as well as sclerotised spurs on its hind tibia.
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| 27. | The first antennal segment is quite bulbous and has a strong sub-apical notch in the female.
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| 28. | They have three part to their antennal receptors : odorant receptors, gustatory receptors, and ionotropic receptors.
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| 29. | The nymphs have a flattened, pentagonal-shaped head, a long first antennal segment and long legs.
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| 30. | The epistome is effectively the sternite of the antennal segment, and lies between the base of the labrum.
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