Zoology.-} NATURAL HISTORY OF VICTORIA. [Insects. 



As Fabricius does not mention the color of the wings of his 

 G. musicuSj and subsequent writers have quoted that species also 

 from India and the Cape of Good Hope, where I do not think the 

 Australian species occurs; while, on the other hand, Leach's 

 G. pictus is unmistakably our insect, and has never been quoted 

 from any other country, I should have been glad to use Leach's 

 specific name, if it were not certain that Sir Joseph Banks's 

 specimen was our species, and Fabricius's name, founded on that 

 specimen, has the priority. 



Very common everywhere in Victoria in the latter part of the 

 summer. 



Explanation of Figures. 



Plate 110. — Fig. 1, female, natural size, flying. Fig. la, side view of end of abdomen of 

 ditto, magnified three diameters, showing the down-turned lower pair of appendages and up-turned 

 upper pair of oviducal plates. Fig. \l>, end view of ditto. Fig. \c, tegmen or anterior wing, 

 magnified twice, to show veining and absence of stridulating organ at base. Fig. Id, bilobed upper 

 lip or labrum, magnified three diameters. Fig. le, powerful, serrated first jaw or mandible, magni- 

 fied three diameters. Fig. If, slender, bidentate maxilla or second jaw, with hood and 5-jointed 

 palpus, magnified three diameters. Fig. Ig, lower lip or labium, with 4-jointed palpi. Fig. Ih, one 

 of the antennae, magnified three diameters. Fig. li, side view of anterior segments of abdomen, 

 to show the stridulating cavity, with its tense membranous cover over base of hind legs, magnified 

 three diameters. Fig. Ik, front view of head, to show the four vertical keels and position of 

 the three stemmata, or small simple eyes, magnified two diameters. Fig. 1/, hind leg, magnified 

 two diameters, to show the chevron-grooving. Fig. \m, side view of 3-joiuted tarsi, magnified 

 three diameters. Fig. In, under view of ditto, to show apparent division of the basal joint. 

 Fig. \o, sternum with bases of six legs, to show wide, flat, smooth, middle and hind segments, 

 and narrow, unarmed front joint. Fig. 2, male, natural size, flying, to show its smaller size and 

 proportionally longer antenna?. Fig. 2a, side view of end of abdomen of male, magnified three 

 diameters, to show the upward-curved sub-anal plate and small appendages. Fig. 2b, ditto, 

 viewed from above, showing pair of small appendages with up-turned end of sub-anal plate 

 between them. Fig. 3, female, natural size, side view. Fig. 4, female, natural size, viewed 

 from above, of variety, with thorax and basal or inner margin of tegmina brown, to show the 

 overlapping of the left anterior wing upon the right when at rest. Fig. 5, pupa, natural size, 

 to show short wings and tegmina. Fig. 6, hind wing, natural size, of very small specimen, to 

 show range of dimensions. 



Frederick McCoy. 



Voi. II.— -Decade XI.— h, ' 45 



