_a._ Hairs, bristles, cleaning spines, calcaria, combs, etc.
=Leydig, Franz.= Zum feineren Bau der Arthropoden. (Müller’s Archiv f. Anat. und Phys., 1855, pp. 376–480.)
=Fobel, Auguste.= Les fourmis de la Suisse. Bâle, 1874.
=Saunders, Edward.= Remarks on the hairs of some of our British Hymenoptera. (Trans. Ent. Soc. London, 1878, pp. 169–171.)
=Perez, J.= Notes d’apiculture. (Bull. Soc. d’Apic. de la Gironde, Bordeaux, 1882.)
=Osten Sacken, C. R. von.= An essay on comparative chætotaxy, or the arrangement of characteristic bristles of Diptera. (Trans. Ent. Soc. London, 1884, pp. 497–517.)
—— Preliminary notice of a subdivision of the suborder Orthorrhapha Brachycera (Diptera) on chætotactic principles. (Berlin Ent. Zeitschr., 1896, pp. 365–373.)
=Janet, Charles.= Études sur les fourmis. 8^e Note. Sur l’organe de nettoyage tibio-tarsien de _Myrmica rubra_. (Ann. Soc. Ent. France, 1895, pp. 691–704, 6 Figs.)
See also J. B. Smith’s Economic Entomology, 1896, hairs of bees. Also the writings of De Geer, Huber, Fenger, Mayr, Forel, Canestrini, and Berlese (1880); Dahl, Cheshire, etc.
_b._ Glandular and poisonous setæ and spines
=Ratzeburg, J. Th. Ch.= Ueber entomologische Krankheiten. (Stettin Ent. Zeit., 1846, vii, pp. 35–41.)
=Zeller, P. C.= Revision der Pterophoriden. (Linnæa Ent., vi, pp. 319–416, 1852, at p. 356 speaks of “Drüsenhärchen.”)
=Dimmock, George.= On some glands which open externally on insects. (Psyche, iii, pp. 387–401, 1882.)
=Goossens, Th.= Des chenilles urticants. (Ann. Soc. Ent. France, 1881, pp. 231–236.) Des chenilles vésicants. (Ibid., 1886, pp. 461–464.)
=Packard, A. S.= Notes on some points in the external structure and phylogeny of insects. (Proc. Boston Soc. Nat. Hist., xxv, 1890, pp. 83–114, 2 Pls.)
—— A study of the transformations and anatomy of _Lagoa crispata_, a bombycine moth. (Proc. Amer. Phil. Soc., xxxii, pp. 275–292, 7 Pls., 1894.)
=Holmgren, Emil.= Studier öfner hudens och de körtelartade hudorganens morfologi hos Skandinaviska macrolepidopterlarver. (K. Svenska Vetenskaps-Akad. Handl., xxvii, pp. 1–83, Stockholm, 1895, 9 Pls.)
Also the writings of Leydig, Keller, Bach, Karsten, Scribner, Riley, etc.
(See also Literature of repugnatorial glands.)
