BY n. J. TILLYARD. 887 



Thus we see that, under no circunistances cati ive prove veins 

 Ms and Bs to he. complete hoinologues. And, until further evi- 

 dence can be brought forward in support of statement No.3 

 above, it would seem advisable to retain the notations Ms for 

 Zygoptera and Rs for Anisoptera in their entirety. 



BIBLIOCIRAPHY. 



1. Needham, J. G., 1903. — "A Genealogie Study of Dragonfl3' Wing- 



Veiiatinn." Proc. U.S. Nat. Mu.s. , xxvi., pp. 703-764, Plates xxxi.- 

 liv. [No.1331]. Washington, U.S.A., 1903. 



2. Tii.i.VARD, R. J., 1914. — "On some Problenis concei-ning the Develop- 



ment of the Wing- Venation of C/donafa.'' Proe. Linn. Soc. N. S. 



Wales, xxxix., Part 1, 1914, pp. 163-216, PI. xi.xiii. 

 3. — 1915. — "On the Development of the Wing-Venation 



in Zygopterous Dragonflies, with special reference to the Cciloptti y- 



>lkhtr I.e., xl.. Part -2. Utl.!, pp.212-230, PL xxxii.-xxxiv. 

 i. n — 1916. — "Studies on Australian Xeuroptera. No. i. 



The Wing- Venation of the Mz/nnKhonidit." L.c, xl.. Part 4, 



1915, pp. 734-750, PI. Iviii. 



