1882.] 155 



A day or two afterwards we paid a visit to Shaughbridge, a magni- 

 ficent piece of mountain scenery in the same neighbourhood, and 

 where the fern grows even more thickly than at the former place ; but 

 here we were doomed to utter disappointment, probably owing to the 

 great quantity of the plant and the less open nature of the ground in 

 consequence, for after beating and searching about for hours, we were 

 not favoured with even a glimpse of the insect. There was now 

 nothing left for us to do except again to visit the first locality. This 

 we did in the course of a day or two, and I had the pleasure of taking 

 a goodly number, principally females. Neither a Psi/lla nor a Trioza 

 passed into my bottle, but I was equally gratified with the capture of 

 the insect about to be described. 



Plattmetopius, Burm. 

 Head : croivn (without the eyes) pentagonal, apex acute, sides next the eyes 

 shortest ; anterior sides slightly convex, about as long as the length down the 

 centre ; posterior margin slightly concave ; disc slightly concave or reflexed at the 

 apex : eyes placed on the sides of the head ; viewed from above spherical triangular ; 

 outer margin continued in the same curve with the anterior sides of the crown, and 

 extending posteriorly for a short distance beyond the posterior margin : /ace, be - 

 tween the antennse, at least one-fourth less than the length down the centre ; sides 

 slightly narrowing towards the base of the clypeus : cJypeus obtusely angulate at 

 the apex. Antennce placed in a deep cavity above the middle of the eyes ; 1st and 

 2nd joints stout. 



These are the principal characters which seem to separate the 

 present genus from that of DeJtocepJialus, to which it is very closely 

 allied ; Burmeister being the first to characterize the genera in his 

 Gen. Ins. (183S). 



Plattmetopius tjndatus. 

 Cicada undata, Deg., Mem., iii, 119, 5, t. 11, fig. 24 ; Pall., Hem. 

 Suec, ii, 29, 7 ; Cicada vittata, Pab., E. S., iv, 35, 33 ; S. E., 67, 23 

 {nee Linn.) ; Jassus vittatus. Germ., P. I. E., 7, 20; Jasms (PJaty- 

 metopius) undatus, Plor, Ehyn. Livl., ii, 221 ; Kirschb., Cicad., 147, 

 127 ; Platymetopius undatus, Pieb., Yerh. K. K. z.-b. Ges., xix, 202, T. 

 6, fig. 64 ; J. Sahib., Cicad., 296, 1 ; Jassus (Platymetopius) undulatus, 

 Thomson, Opusc. Ent., i, 46, 1. 



Bright lemon or canary-coloured, shining. Head: crown chocolate-brown, 

 more or less thickly and finely spotted with yellow ; anterior sides narrowly yellow ; 

 extreme margin with a minute puncture near each eye : frons,face, clieeTcs, clypeus, 

 and rostrum, yellow, apex of the last narrowly black. Antennce : cavity black ; three 

 basal joints yellow ; setcB brownish. 



Thorax : pronotum chocolate-brown, very finely but irregularly spotted with 



