BY R. J. TILL YARD. 435 



occasion US no surprise, but is rather to be expected; just as we 

 may expect that the more advanced ])ragoiiflies of to-day will 

 remain in existence, loni;: after Petahira has become extinct. 



BIBLIOGRAPHY. 



Handliksch, a. — Die Fossileii Insekten, etc., arid Atlas. Leipsic, 



1908. 

 TiLLYARD, R. J. — '* Mesozoic and Tertiary Insects of Queensland and 



New South Wales."' Queensland Geological .Survey, Publication 



No.2."i.3, IDie;. (Me.sophleJna, p.24). 

 "Mesozoic Insects of Queensland. "" No. 1. Planipen- 



nia, Trichoptera, and the new Order Protomecoptera."' Proc. Linn. 



Soc. N. S. Wales, 1917, xlii., Part 1, pp. 175-200. 

 "Mesozoic Insects of Queensland. No.2. The Fossil 



Dragonfly ^Esdinidiopsis ( .Eschna) flindersien.s'ts (Woodward), from 

 the Rolling Downs (Cretaceous) Series. Op. cit., 1917, xlii., Part 4, 

 pp. (576-692. 

 Walkom, a. B. — " The (Geology of the Lower ^fesozoic Rocks of 

 Queensland, with special Reference to the Distribution, Fossil Flora, 

 and their Correlation with the Lower Mesozoic Rocks of other parts 

 of Australia." Proc. Linn. Soc. X. S. Wales, 1918, xliii., Part 1, 

 pp.37-ll."5. 



EXPLANATION OF PLATES XLIV.-XLV. 



Plate xliv. 

 Fig. 12. — Ai'i'opldiia niirahilia, n.g. et sp. Principal preserved portions of 



the wings; ( x 7). 



Plate xlv. 

 Figs. 18-14. — Airoplana mi nihil i-<, n.g. et sp. Restoration of fore- and 

 hindwings; ( x 4K Fig. 13, forewing; fig. 14, hindwing. 

 lA, analis; C, costa; Cu^, Cu2,the two branches of the cubitus; Mi-M-, 

 the seven principal branches of the media; R, , main stem of radius; Rs, 

 radial sector; Sc, subcosta. 



Postscript {added Jul u 1 ith, I'.JhS). — The following important 

 changes of nomenclature have to be made: — 



Jhsopanorpa Tillyard, 1918 (Type, J/. irianamaUeusis Till- 

 yard, Upper Triassic of Glenlee, N.S.AV., Mecoptera,) becomes 

 Mps<>panorpode>^, n.n.; preoccupied by Mesopauorpa Handlirsch, 



