BY R. J. TILLYARD. 895 



Text-fig. 24. 

 Diagram showing the phylogeny of the Homoptera. There is no palae- 

 ontological evidence for the portion of the phylogenetic scheme 

 shown by means of broken lines. The positions of important fossil 

 types are indicated by circles, to which numbers are attached by 

 means of arrows, as follows: — /, Prosbole ; 2, Permofulgor ; 

 3, Scytinoptera and Permoscarta ; 4, Dunstaniidae ; 5, Enry- 

 melidium, Mesojassus and Triassojassus ; 6, Mesoscytina, Meso- 

 dip/it/iera and Triassoscarta ; 7, Ipsvicia ; S, Mesocixiinae ; 

 g, Triassopsylla ; 10, Arehijassus ; 11, Procercopis ; and 12, Ful- 

 goridium. 



BIBLIOGRAPHY. 



(1) Comstock, J. H., 1918.— "The Wings of Insects," Comstock 



Publishing Co., Ithaca, N.Y., U.S.A. 



(2) Funkhouser, W. D., 1913 — "Homologies of the Wing Veins of 



the MembracidaeS' 1 Ann. Ent. Soc. Amer.,vi., 1913, pp.74. 

 97, Pis. ih.-vii. 



(3) Handlibsch, A., 1908. — " Die Fossilen Insekten, etc." Leipzig. 



(4) Mktcalf, Z. P., 1913.— "The Wing Venation of the Jassidae." 



Ann. Ent. Soc. Amer., vi., 1913, pp. 103-112, Pis. viii.-xv. 

 (5) '. , 1913.— "The Wing Venation of the Ful- 



goridae." I.e., vi., 1913, pp. 341-352, Pis. xxxii.-xxxvii. 

 (6) -, 1917. — "The Wing Venation of the Cerco- 



pidae." I.e., x., 1917, pp.27-32, Pis. i.-ii. 



(7) Muir, P., 1913. — "On some new Fulgoroidea." Proc. Hawaiian 



Ent. Soc, ii. (5), 1913, pp. 237-269, PL vi. 



(8) Tillyard, R. J., 191(3. — "Mesozoic and Tertiary Insects of 



Queensland and New South Wales." Queensland Geol. Surv., 



Publ. No. 253, 1916, pp. 1-47, Pis. 1-9. 

 (9) ,1918. — "Permian and Triassic Insects from 



New South Wales in the Collection of Mr. John Mitchell." 



Proc. Linn. Soc. N.S.W., xlii., 1917, pt. 4, pp. 720-756. 

 (10) ■ — , 1918. — "Mesozoic Insects of Queensland. No. 4. 



Hemiptera Heteroptera : The family Dunstaniidae , etc." 



I.e., xliii., 1918, pt. 3, pp. 568-592, PI. lix. 

 (11) , 1919.— "The Panorpoid Complex. Part 3. The 



Wing Venation." I.e., xliv., 1919, pt. 3, pp. 533-718, Pis. 



xxxi-xxxv. 



LETTERING OF TEXT-FIGURES. 

 amb, ambient vein; 1A, first anal vein; 2A, second anal vein; Cu, 

 cubitus; Cui, first cubitus; Cui a , its upper, and Cuibi its lower 

 branch; Cu2, second cubitus or vena dividens ; M, media; Mi. M2. M3 ; 

 M4. its branches ; me, median cell; R, radius; Ri R2, R3, R-i, R5, its 

 branches; re, radial cell; Sc, subcosta; Sci, Sc2, its branches. 



