BY R. J. TILLYARD. 753 



Metrorhynchitks grandis, n.sp. (Text-%.15). 

 This specimen consists of a considerable portion of a large, 

 elongated, and highly convex elytron, with sharply pointed apex. 

 The suture is well pre- _ 



served, from apex nearly \_ ^ ' ' '— — ----^^^'^^. 



to base; but a fracture ^ ■• '-'■■■^^^ 



of the rock, running ob- ^^"^N ^vv'.m a^^; ". ,. "\" ." - 2 ^ ^^^ 



liquely across the ely- ^H^mjil^gj^jjj^^lgiss*^ 



tron, has cut off all but Text-fig. 15. 



n ,. £ ,1 Mf'frorhvnchites graiidi^, n.sp., elytron (leni'th 



a small portion of the „ . "^ _•' ' ' ' / ^ T 



rn T 1 1 ot tragment 14 4mni.). Glenlee; Tnassie. 



margin. Jotal length 



of frayinenf., 14-4 mm.; greatest breadth 2)reserved, 3-7 mm., but 



the elytron was evidently considerably wider towards the base. 



Sculpture : finely granulate all over, including suture; three 



weakly impressed, longitudinal striae at wide intervals apart, 



and tending to vanish towards the apex. 



Type, Specimen No.20 in Coll. Mitchell. 



Only doubtfully referable to Metrorhynchites^ from which it 

 differs in its greater size, its more sharply pointed apex, and in 

 the fact that the three longitudinal striae are not nearly so well 

 marked as in the type-species, and do not unite together towards 

 the apex. 



The specimen is a cast of a left elytron, very well preserved, 

 except for the fracture. 



Order HEMIPTERA. Suborder Homoptera. 

 Family PSYLLID^. 

 Genus T r i a s s o p s y l l a , n.g. ( Text-fig. 1 6). 

 Moderate sized insects, forewing probably about 6 mm. Fore- 

 wing broad, with well-rounded apex. Five separate veins end- 

 ing up on the apical portion of the wing-margin; of these, the 

 two anterior probably represent branches of Rj, the third ap- 

 pears to be the unbranched Rs, the fourth and tiftli Mj and M„ 

 respectively. Sc present, almost, if not quite, fused with R. 

 Wing-membrane quite smooth. 

 Genotype, IViassopsylla plecioldes, n.sp. 

 In spite of some obvious resemblance to the wings of the 

 famil}^ BihionidfK in the Diptera Nematocera, and in particular 



54 



