Zoology.] NATURAL HISTORY OF VICTORIA. [Zresccte. 



between eyes to end of abdomen, 1 in. 6 lines; lengtb of eacb tegmina, 1 in. 11 

 lines, to 2 ins. 1 line; length of antennas, 1 in. 11 lines; length of appendages, from 

 bifid anal plate, about \ line ; length of two upper appendages, lh lines. The sub- 

 pentagonal, horizontal, inner basal angle of tegmina containing the stridulating organ 

 is about as long as the head and prothorax, and of the same brownish color in some, 

 greenish in others; the rest of the tegmina abruptly deflexed. Proportional measure- 

 ments : Male — Length of tegmina, 1 in. 10 lines ; length from fore part of head to end 

 of abdomen, yVo 5 length of antenna?, x^nfj length of hind thigh, T r ^° . Female: 

 Coloring as in the male, except the inner angles at base of tegmina, which are 

 minutely reticulated, and of the same consistence and color as the rest of the tegmina. 

 Length from base of antenna? to end of abdomen, excluding ovipositor, 1 in. 4 lines 

 to 1 in. 7 lines; ovipositor, 1 in. 4 lines; appendages above base, 1 line ; length of 

 hind thigh, 1 in. 3 lines; length of hind tarsus, 1 in. 3 lines; length of each 

 tegmina, 2 ins. 3^ lines; expanse from tip to tip, 4 ins. 6 lines; greatest width of 

 tegmina, 6| lines. Proportional measurements (length of tegmina taken as 100) : 

 greatest width of tegmina, y^ ; length of hind wing, xsVs greatest width, -/^ ; 

 length of antennae, T Vo 5 length of prothorax, xo%5 length of ovipositor, T %°<y ; 

 length of hind thigh, -{±\. 



Reference. — Audinet Serville Hist. Nat. des Ins. Orthop., p. 530. 



The family of GryHidce, or the Grasshoppers, is composed of a 

 number of genera of insects often confounded with the Locustidce, 

 or the Locusts, to which they are most nearly allied, but from which 

 they may be easily distinguished by the more slender body, the 

 very long antennae, exceeding the body in length, and the abdomen 

 of the female being terminated by a very long, stiff, multivalve 

 ovipositor, about as long as the abdomen ; and the base of the 

 anterior wings or elytra of the male having usually each a round 

 talc-like spot (unsymmetrical, the right differing from that of the 

 left side), for producing the peculiar chirping song or call for the 

 female. This latter structure is surrounded with prominent veins, 

 those of the under-side of the left one being most prominent and 

 lying; over the right one when the wings are closed ; the sound 

 being produced by rubbing the bases of the wing-cases one over 

 the other. In the Grasshoppers generally the legs are long and 

 slender, and the delicate wings usually extend far beyond the end 

 of the abdomen when folded at rest. The anterior tibiae of both 

 legs have an oval pit closed by a talc-like plate in the slightly 

 dilated base ; the functions of these curious peculiarities being 

 unknown, although Glaus in his Lehrbuch der Zoologie suggests 

 they may be the organs of hearing. This from their position and 

 want of otolites is unlikely (and I have suggested the cavity 

 opening in the basal joint of the antennae to be the organ of 



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