BY H. J. TILLY A RD. 387 



EXPLANATION OF PLATE X. 



Fig. 1. — Hasal portion of wings of Hesperocordn/ia berthoudi q, n.gen. 



et sp. 

 Fig. 2. — Basal portion of wings of Lathrororduliu mtiallica (J, n.gen. et sp. 

 Fig.;^. —Appendages of Hesperocordulia berlhovdi n.sp. q, dorsal view. 

 Fig 4. —Appendages of Ldthrorordu/ia metullica n.sp. Q, dorsal view. 

 Fig. 5. —Appendages of Htmicordtdia snperba n.sp (J, dorsal view. 

 Fig. 6 — Appendages of Hemirordulia xuperJta n.sp. (J, lateral view. 

 Fig. 7. —Appendages of Hemirordulia siipeiba n.sip. $, lateral view. 

 Fig. 8. —Ventral view of seg.9 of Hemicordidia suptrba n.sp. 9' 

 Fig. 9. —Appendages of H enptrcordidia berthoudi n.sy>. q, lateral view. 

 Fig. 10. — Appendages of Lufh?-orordiUia mf-.tallira n.sp. $, lateral view. 

 Fig. 11. — Pterostigma of Macromia viridescens n.sp. 9' 

 [Figs.1-2, x; figs. 43 11, X 10.] 



Posfiicript, added Augiist l.^th, 1911. — In a letter just received 

 from M. Rene Martin, the following words are used by him 

 regarding Hemicordulia novce-hollandice (I translate from his 

 letter, written in French) : — " Hemicordidia continentalii< differs 

 from //. novo'-hollandice by the fades. It is a smaller, shorter 

 and thicker dragonfly. The thorax is more entirely deep metallic 

 blue above, the abdomen appears quite black above, the yellow 

 colour of the sides is placed lower down and is scarcely visible; 

 whereas in H. novfp-hollandica the yellow is very broad and 

 apparent. //. continenUdix is perhaps a race or form of H. novcr.- 

 hoU(mdiff; but the facies is very different. In the female of 

 //. novce-holliindi(f in my collection, and that which I have seen, 

 the abdomen is long, not narrowed at segment 2; 2-3 very yellow 

 above; in the female of H. contiiientalis, the abdomen is shorter, 

 narrowed at segment 2, and then cylindrical, with a little yellow 

 on the sides of 2-3; the wings shorter, the thorax more touched 

 with metallic green; segment 10 is nearly all black, scarcely 

 edged with yellow at the extreme tip." 



With these words before me, I am still of opinion that the two 

 are not specifically distinct, R. J. Tillyakd, 



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