FIGURE 1. Wing venation. Fig. 1a in Taxonomic review of the genus Hydria H , 1822 (Lepidoptera, Geometridae, Larentiinae) in the Middle East, with description of three new species and one new subspecies

FIGURE 1. Wing venation. Fig. 1a. Hydria cervinalis; Fig. 1b. Rheumaptera hastate. Pay attention to the presence of two areoles in forewing of Hydria vs. one areole in forewing of Rheumaptera.