13. a) Hind femur much longer than greatest breadth, with distinct basal spine, hind tibia broadest subapically, expansion smoothly rounded (Figure 23a) ….. Dufourea maura (Cresson)
b) Hind femur robust, half as broad as long, without basal spine, hind tibia greatly expanded to apex, triangular (Figure 23b) ….. Dufourea dilatipes Bohart |
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Figure 23a: D. maura (male), hind femur much longer broad, with basal spine; hind tibia broadest subapically, rounded |
Figure 23b: D. dilatipes (male), hind femur robust, without basal spine; hind tibia greatly expanded to apex, triangular |