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Fig. 86.—Tongue or ligula of the honey bee: A, under side of the tongue; lp, labial palpi; r, r, rod; p, pouch; sh, sheath; gh, gathering hairs; b, bouton or spoon. B, under lip or labium, with appendages, partly dissected; l, lora or submentum; a, a, retractor linguæ longus; sd, salivary duct; rb and b, retractor linguæ biceps; mx, maxillæ; lp, labial palpi; pa, paraglossa; gr, feeding groove; sh, sheath of ligula. C, D, E, sections of ligula; hp, hyaline plate of maxilla; h, hairs acting as stops; mx, maxilla; lp, labial palpi; sd, side duct. F, cross-section of extremity of tongue near the “spoon”; th, tactile hairs; r, rod; n, nucleus; gh, gathering hairs. G, cross-section of tongue without gathering hairs, × 400 times; sh, sheath; b, blood space; t, trachea: ng, gustatory nerve; cd, central duct; sd, lateral duct; pm, plaited membrane. H, same as G, but magnified two hundred times, and with pm, plaited membrane, turned outwards; h, closing hairs; lp, labial palpi; b, blood; n, nucleus; r, rod; h, closing hairs. I, small portion of the sheath; lettering as before. K, extremity of the tongue, with spoon; b, branching hairs for gathering.—After Cheshire.