Morphology
| Adult head | |
| Ocelli: present or absent | |
| Labial palp: ascending recurved | |
| Number of labial palp segments: 3 | |
| Maxillary palpus: rudimentary or short, appressed, filiform | |
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| Head vertex scaling: usually smooth, with appressed scales | |
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| Male antennae: filiform | |
| Female antennae: filiform | |
| Adult thorax | |
| Epiphysis: present | |
| Forelegs: normal | |
| Number of tibial spurs foreleg: 0 | |
| Number of tibial spurs midleg: 2 | |
| Number of tibial spurs hindleg: 4 | |
| Leg description: Legs usually smooth scaled except for hind tibia which clothed with long hairs above; foretibial epiphysis present; tibial spur pattern invariably 0 2 4 |
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| Forewing pterostigma: present or absent | |
