j 4 6 DESCRIPTIONS OF PREPARATIONS. 



.with larvae feeding on vegetable food, &c., have but few (one to four) ; those with 

 larvae feeding on dung have many; the Honey-bee has 14,000 to 15,000 grooves 

 and 300 cones on one antenna, Ichneumon 3000 grooves : but in the phytophagous 

 subsection of the Hymenoptera grooves are absent, and cones are present in com- 

 paratively small numbers. The Lamellicorn beetles have vast numbers on the 

 foliate expansions of the joints, e.g. male Cockchafer about 39,000, female 35,000. 

 Hauser was unable to find any organs in the antennae viHemiptera and Neuroptera 

 ( Chrysopa), nor in the Carabidae, but in the latter and in other Coleoptera he found 

 identical structures on the maxillary and labial palpi. They may, however, in these 

 situations have a gustatory rather than an olfactory function. Cones especially 

 appear to be present in larvae, not only on the antennae, but also on the palpi. 

 In many instances, however, the organs appear to be absent. 



Cone-like structures occur on the antennae of Lithobius forficatus and Julus 

 terrestris among Myriopoda ; see also Bourne (G. C.) on Sphaerotherium, J. L. S. 

 xix. Dec. 1885. 



Insecta, MacLachlan, Encyclopaedia Britannica (ed. ix.) xiii. Anatomia degli 

 Insetti, Camerano, Turin, 1882. Die Insekten, Graber, ' Naturkrafte ' series, xx., 

 Munich, 1877. Elementary Text-book of Entomology, W. F. Kirby, 1885. Intro- 

 duction to Entomology, Kirby and Spence, 4 vols. (vols. iii. and iv. 1826, which con- 

 tain orismology and anatomy, have never been reprinted). Guide to the study of In- 

 sects, Packard (ed. 3), Salem, 1872. Modern Classification of Insecta, Westwood, 

 2 vols., London, 1839. Entomologist's Text-book, Idem, 1838. 



Orthoptera. Orth. Europaea, Fischer, Leipzig, 1853 ; see for Family Blattinae, 

 pp. 84-88. Recherches anatomiques, etc., sur les Orthopteres, Le'on Dufour, Me'moires, 

 etc., des savants Strangers, Acad. Roy. de France, 1841. Classification of Orthop- 

 tera and Neuroptera, and Genealogy of Insects, Packard, American Naturalist, xvii. 

 1883. 



The Cockroach. Beitrdge zur ndheren Kentniss von Periplaneta orientalis, Cor- 

 nelius, Elberfeld, 1853 ; cf. Hagen, Stettin. Entomol. Zeitung, xv. 1854, p. 378 ; and 

 Huxley, Anatomy of Invertebrated Animals, 1877, p. 398. 



Structure, movement, and function of Insectan limbs. Dahl, A. N. 50, 1884. 

 Adhesive organs. Simmermacher, Z. W. Z. xl. 1884; cf. Dewitz, Z. A. vii. 1884; 

 viii. 1885 ; and Reviews by Emery and Graber in Biol. Centralbl. iv. 1884-85. 

 Glands of feet. Dahl, A. M. A. xxv. 1885. 



Folding of wings. Scudder, American Naturalist, x. 1876 ; De Saussure, A. Sc. 

 N. (5) x. 1868. Circulation in wings of Blatta, Moseley, Q. J. M. xi. 1871. 



Thoracic muscles. Luks, J. Z. xvi. 1883 ; Structure of muscle, von Limbeck, SB. 

 Akad. Wien, xci. Abth. 3, 1885. 



Somites of head. Packard, American Naturalist, xvii. 1883. 



Structure of antennae, Hauser, Z. W. Z. xxxiv. 1880. Mouth-parts of Insecta. 

 Brulle, A. Sc. N. (3), ii. 1844 ; Chatin, A. N. H. (5), xiv. 1884. 



Brain of Cockroach. Newton, Q. J. M. xix. 1879. Of Locust. Packard, 

 American Naturalist, xv. 1881. Stomatogastric and sympathetic systems. Kostler, 

 Z. W. Z. xxxix. 1883. Nervous system of Insects in general. Leydig, Vom Bau 

 des Thierischen Korpers, Tubingen, i. 1864 and Atlas. Lobi olfactorii, Flogel, Z. A. 

 vi. 1883, p. 539; Id. Z. W. Z. xxx. (Suppl.) 1878, described under Blatta, p. 566. 



Digestive tract, &c. Basch, SB. Akad.Wien, xxxiii. 1858. Salivary glands. Kupfer, 



