| FIG. | |
| 1. | Inside of elytrum of Dytiscus marginalis. |
| 2. | ———————— Strategus Aloeus. Part of hypoderma
peeled off. |
| 3. | Part of ditto of Buprestis vittata, to show the axis. |
| 4. | —————— Passalus. |
| 5. | —————— Dynastes. |
| 6. | —————— Elater sulcatus, to show the epipleura. |
| 7. | —————— Blaps lethifera, ditto. |
| 8. | —————— Dynastes quadrispinosus, ditto. |
| 9. | Alitrunk and part of tegmina and wings of Locusta.
a. Space marked by the transverse nervure in which all
the nervures of the anal area terminate. Vol. III.
p. [618]. |
| 10. | Alitrunk and part of elytra and wings of Phyllopertha horticola. |
| 11. | Alitrunk and part of tegmina and wings of Fulgora laternaria.
Postfrænum funiculate, with an elastic part
marked a. Vol. III. p. [558]. |
| 12. | –———————— hemelytra and wings of Pentatoma. |
| 13. | –———————— wings of Panorpa. |
| 14. | ———————————— Trichoptera. |
| 15. | ———————————— Lepidoptera. Geometra. |
| 16. | ———————————— Lepidoptera. |
| 17. | ———————————— Diptera. |
| 18. | Wing of Chermes Fraxini. |
| 19. | Tegmen of Locusta. |
| 20. | ————– Issus. |
| 21. | Wing. Cercopis sanguinolenta. |
| 22. | ——– Locusta. |
| 23. | Hemelytrum of Reduvius? |
| FIG. | |
| 1. | Gills of a spider. (Treviran.) |
| 2. | ———– Scorpio europæus. (Ibid). |
| 3. | Aëriducts of larva of Ephemera fusco grisea. (De Geer.)
Vol. IV. p. [58]. |
| 4. | —————————————– vespertina. (Ibid.) [Ibid]. |
| 5. | —————————————– vulgata. (Ibid.) [Ibid]. |
| 6. | ————————– Sialis lutaria. (Ibid.) [Ibid]. |
| 7. | Thread-like ditto of the upper and under side of the larvæ
of Trichoptera. (Ibid.) Ibid. p. [56]. |
| 8. | Part of the body of the larva of a Libellula, laid open to show
the tracheæ. (Reaum.) a. a. a. Tracheæ. Vol. IV. p. [66]. |
| 9. | Part of the imago of ditto. (Ibid.) a. Vesicles that
terminate the tracheæ. b. Oblong ditto. Vol. IV. p. [68]. |
| 10. | Pupa of Corethra culiciformis. (De Geer.) a. b. Vesicles
connected with the tracheæ. c. Tail. Vol. IV. p. [67]. |
| 11. | Part of the head of Armadillo zonatus. a. Pseudo-spiracle.
Vol. III. p. [493]. |
| 12. | Part of the trunk of Goerius olens, to show its antepectoral
spiracle. Vol. IV. p. [43]. |
| 13. | Part of the abdomen of Pneumora. a. The series of
ridges, by striking the hind leg over which they probably
produce their noise. Vol. II. p. [391]; III. p. [339]. |
| 14. | Underside of part of the alitrunk of Lygæus sexmaculatus
K. MS. b. Branchiform apparatus between the
scapula and parapleura. Vol. IV. p. [45]. |
| 15. | —————————————————— Pentatoma rufipes.
a. Corrugated membrane. b. Apparent fringe of hairs
or bristles. [Ibid]. |
| 16. | Spiracle of larva of Oryctes nasicornis. (Sprengel.) |
| 17. | ———————— Dytiscus marginalis. (Ibid.) |
| 18. | Part of the trachea and bronchiæ of the pupa of Smerinthus
Populi. (Ibid.) |
| 19. | Spiracle of the imago of Oryctes nasicornis. a. The boss.
(Ibid.) |
| 20. | Dorsal spiracle of Cermatia. |
| 21. | Pencil of hairs attached to a supposed respiratory plate
in certain Noctuidæ. Vol. IV. p. [60]. |
| 22. | Part of the back of the abdomen of the pupa of a Pentatoma.
a. Pseudo-spiracle. b. Connecting corrugations.
Vol. III. p. [713]. |
| 23. | Unilabiate spiracle of Gonyleptes. |
| 24. | Portion of ventral segments of abdomen of Aradus laminatus
K. a. Tobaccopipe-shaped organ near the ventral
spiracles. Vol. III. p. [713]. |
| 25. | Part of the back of the alitrunk of Belostoma grandis, to
show the metapnystega? or rather spiracle. Vol. III.
p. [572]; IV. p. [45]. |
| 26. | Pseudo-spiracle of Carkinodes cancriformis. Vol. III.
p. [714]. |
| 27. | Part of the ventral segments of the abdomen of Lygæus
compressipes. a. Pseudo-spiracles. |
| 28. | Portion of dorsal segments of Dytiscus marginalis, to
show the large anal spiracles. Vol. IV. p. [42]. |
| 29. | Plumiform gills in the mouth of the spiracles of the larva
of Cossus ligniperda. (Sprengel.) |