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(A) Lateral view. (B) Anterior view. (C) Ventral view showing the five labial segments. (D) Enlarged anterior view of labrum. Hc, head capsule; Cl, clypeus; Lm, labrum; Lb, labium; Lg, labial groove; Sf, stylet fascicle; CH2, sensilla chaetica II; I-V, segments of labium. Bars: (A), (B), and (C) = 1500 μm; (D) = 120 μm.
