. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 518 On Acarapis woodi, Rennie. Note.—Apparently only adult bees are infested by this mite, which lives in the tracheal tubes of the head and thorax. It is not known how infection takes place—possibly by bees visiting the same flower or drinking-place. Many species of Tyroglyphidae have a migratory or travelling stage (hypopus), but this stage is not known to occur in the Tarsonemidae. In his "Acarina or Mites" (Report No. 108, Dept. Agricult. 1915, p. 109) Mr. N
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 518 On Acarapis woodi, Rennie. Note.—Apparently only adult bees are infested by this mite, which lives in the tracheal tubes of the head and thorax. It is not known how infection takes place—possibly by bees visiting the same flower or drinking-place. Many species of Tyroglyphidae have a migratory or travelling stage (hypopus), but this stage is not known to occur in the Tarsonemidae. In his "Acarina or Mites" (Report No. 108, Dept. Agricult. 1915, p. 109) Mr. Nathan Banks asserts that " The curious [Tarsonemid] genus Seutacarus has a migratorial nymphal stage much like the hypopus of the Tyroglyphidse. Fig. Acarapis woodi. a, last leg of female ; b, ovum, greatly enlarged; c, first leg of larva; d, second leg of larva. This stage has been found on bees and ; This is a mistake, however, for it has been pointed out by Michael ('British Tyroglyphidae,' vol. i. p. 126), and also by Enzio Keuter in his very excellent paper " Zur Morphologic und Ontogenie der Acariden" (Acta Soc. Fennicse, xxxvi. 1909), that the nymphal stage is suppressed in Disparipes ( = Seuta- carus) . The hypopial stage is always a nymph, and there is no free nymphal stage either in Acarapis or Tarscmemus; so that it is probable that the disease spreads through the adult Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London, Taylor and Francis, Ltd
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