[1585] In Elater, Fabricius describes 137 species; in Melolontha, 149; in one section of Rhynchænus, 161; of Curculio, 183; and in his Papiliones Heliconii, 300.
[1586] Thus he places Chlænius holosericæus and nigricornis, which might pass for varieties, far asunder; and Dromius agilis is even put in a different section from D. quadrimaculatus, truncatellus, &c.
[1587] The continuance of this important privilege, by the lamented death of the learned President, is now rendered uncertain; but I trust we may anticipate, that by the liberality of the members of the Linnean Society, and if necessary of the public, this invaluable treasure, by being fixed in the Metropolis, will be more than ever accessible to the British Naturalist.
[1588] It may not be amiss to mention a few:—Sphæridium dytiscoides is a Hydrophilus related to H. fuscipes. S. glabratum is heteromerous, probably one of the Helopii Latr. Carabus retusus and Maderæ both belong to Calosoma. Cistela angustata is a true Choleva. See Linn. Trans. xi. 138.—S.
[1591] For dissections the one recommended above, p. 201, may be used. Sometimes a watchmaker's eye-glass, which also sets the hands at liberty, will be found useful.
[1592] N. Dict. d'Hist. Nat. xxxii. 264.
[1593] Ibid. xvi. 281.