Key to subgenera of Aspidophorodon (based on apterous viviparous females)

1. Spinal processes on body absent; antennal tubercles well developed, cylindrical, finger-like, or long horn-shaped; antennae 4- or 5-segmented; cauda with 3–5 setae; mainly on Salix (Salicaceae) ............................ Aspidophorodon Verma

- Spinal processes on body present; antennal tubercles protuberant or developed in the form of finger-like projections; antennae 5- or 6-segmented; cauda with 4–10 setae; mainly on Rosaceae ................ Eoessigia David, Rajasingh & Narayanan