350 MONOGRAPH OF THE GENUS SYNTH EMIS, 



This iiymph can be at once distinguished f i om any of the other 

 four known species l>y its greater breadth and flatness, and by the 

 comparative shortness of the anal appendages. 



Types: Coll. Tillyard(Duck Creek, Auburn, N.S.W.). 



4. Synthemis MIRANDA Selys. 



Selys, loc. cit. 1871; Martin, " Cordulines," 1906, p.82, figure 

 of wings; Plate iii., tig. 19, coloured figure of type-female. 



2. Unique. Half of abdomen lacking. Hind wing 4 4 mm. 



As this species is so carefully figured by Martin, I have 

 omitted it from the coloured Plate. From the very detailed 

 description of de Selys, I append the following points for pur- 

 poses of comparison : — • 



W i n g s very much tinged with russet-l)rown on their basal 

 halves, especially the hindwing (N.B. — -Tiiis is a condition often 

 found in newly emerged females); pterostigma 3'5mm., blackish; 

 membranule very long, smoky; all triangles crossed; 4-5 cross- 

 veins in basilar space, 8-9 in submediaii. Head steely-black, 

 with yellow markings on clypeus and labrmn. Thorax brown 

 above; two yellow bands on each side. Legs brownisli-black. 

 Abdomen slender, steely-black; 2 with a transverse ray, 

 broken dorsally; 3-4 with small basal spots, 3-5 with a pair of 

 round central spots. 



Hah. — Supposed to be New Caledonia. 



The remarkable discovery of this specimen by de Selys has 

 been already related. It is apparently similar, both in colour- 

 ation and wing-venation, to the female of S. regina, whicli is also 

 a large insect. In both the anal loop is divided into three 

 portions; a condition existing in no other member of the genus. 

 But the reticulation of S. reguia is much less den.se than in .S*. 

 miranda. In its suffusion with brown, and in the numerous 

 cross-veins, S. miranda recalls a large immature female of aS'. 

 macrostigma. It differs, however, from the latter in having the 

 lateral band of the thorax entire. 



I do not think that the presence of cross-veins in the triangles, 

 and the generally dense venation warrants the formation of 



