48 



STUDIES IN AUSTRALIAN NEUROPTERA, 11., 



formicaleon, and Distoleon. The phylogeny of these three tribes 

 may be exhibited thus : — 



Myrnieleontinje 



2^ l/niph id -like 

 Ancestor. 



Piotoplectrini 



Dendroleontini 



a 

 o 



C 



Uistoleontini J Q 



In this diagram, I have not attempted to show the ramifica- 

 tions of the subfamily MyrmeleoutiiuH, whose headquarters lie 

 quite outside Australia. 



Tribe Ppotopleetplnl. 



In forewing, Cu runs parallel with Cu, + M„ for some distance. 

 Genus P r o t o p l e c t r o n Gerst. 

 2. Pkotoplectron longitudinale, n.sp. (PI. ii., fig. 5). 



Total length 30, abdomen 23'5, forewing 41oxl05 wide, 

 hind wing 39 5 x 9 mm wide. 



Head: epicranium blackish, with two, small, brown spots on 

 occipital ridge near eyes; eyes black, touched with grey above; 

 antenufP 9 mm., greyish-brown, ringed with black; face and 

 mouth-parts pale, shiny orange-brown. 



Thorax: prothorax short, 3'5 x 2*5 mm., downy, grey, with 

 two, longitudinal, dorsal, blackish stripes. Frothorax grey, 

 downy, with darker markings, a small but distinct, white spot 

 close to base of each forewing; underside with soft, pale grey 

 hairs. Le<js rather short, stout; femora brown, with black stripes, 

 and long, soft, grey hairs, also a few, stifler, black hairs; tibiae 

 similarly marked, with several, large, stiff, black hairs; first joint 

 of tarsi very long, 2nd-4th short, 5th long, all blackish, claws 

 brown; tibial spines long, reaching to end of first tarsal joint. 



