Previous Step (72a)
73a Entire wing hyaline except for some darkened veins and an occasional fuscous cell and the disk infrequently faintly tinged with yellow; postero-ventral angle of lateral lobe of pronotum decidedly produced ventrally.
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73b Apical third or more of wing rather uniformly fuscous; postero-ventral angle of lateral lobe of pronotum slightly produced ventrally.
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