BY R. J. TILLYARD. 747 



9. Already described (Martin, " Cordulines," 1906, p. 72; see 

 also these Proceedings, 1906, xxxi., p. 491). 



Hab. — Kuranda, N.Q. 



The type-male above described was taken by Mr. F. P. Dodd, 

 December, 1907, and is the only one that has so far been captured. 

 Several females have also been taken, and are now in my collec- 

 tion together with the type-male. I also saw a fine male near 

 Cooktown last January, and my friend, Mr. Allen, of Cairns, has 

 ;seen the insect at the Barron Falls. 



This exceedingly fine and handsome insect is by far the largest 

 of our Australian Corduliince. It has a swift straight flight and 

 it is not easy to capture. It inhabits densely wooded streams 

 and creeks. It appears to be very closely allied to the rare 

 European M. splendens Pictet, both in markings and in the form 

 of the appendages, but it can be immediately separated from that 

 species by the conspicuous black spine on segment 10 of the male, 

 which is not found in the male of M. splendens. 



7. Synthemis Olivei,* n.sp. (Plate xxii., fig.4). 



£. Total length 39 mm.; abdomen 30 mm.; forewing 28*5 mm., 

 hind wing 27 mm. 



Wings: rather slack; neuration fine, black; two, or sometimes 

 three, cross-nervules in basilar space, four in submedian; ptero- 

 Migma short, 1*7 mm., black; membranide nil, outer side of anal 

 triangle convex, a tiny cross-nervule very low down; one row of 

 discoidal cells following triangle of forewings; one cross-nervule 

 in hypertrigonal spaces of all wings; first two or three postnodals 

 of all wings not continuous. Nodal Indicator 10-11 6-7[ 

 Head: eyes brown behind, black in front; occipital 8 7[ 



triangle very small, black; vertex small, hairy, tubercled, black, 

 the black extending on to the base of the front; antennce small, 

 tine, black, central ocellus transparent, larger than the other two, 

 which are black; front dull white; a black mark in the clypeal 

 suture; postclypeus dull white, anteclypeus grey; labrum white, 



* Dedicated to my friend, Mr. E. A. C. Olive, of Cooktown. 



