LIST OF HOMOPTEROUS INSECTS. 421 



rounded on each side, straight where it joins the epistoma, surrounded 

 by a slight rim and having three ridges, the side j3air slightly curved 

 and disappearing in the disk, its hreadth less than twice its length ; 

 epistoma tawny, triangular, pitchy on each side : mouih tawny with 

 a black tip : fore-chest arched, partly tawny, more than twice the 

 length of the crown : middle-chest partly ferruginous and with an 

 oblique ridge on each side, having a high crest towards the hind 

 border: abdomen obconical, as long as the chest, tawny beneath to- 

 wards the base : legs tawny: fore-wings brown, colourless with four 

 interruptions along the fore border and at the tips, where there are 

 numerous irregular hrown dots ; veins ferruginous, tawny in the 

 colourless parts ; longitudinal veins very numerous towards the tips ; 

 cross-veins few ; along the fore border a row of long mostly parallel 

 cross-veins which are more oblique towards the tips than elsewhere : 

 hind-wings colourless. Length of the body 31 lines ; of the wings 

 12 lines. 



a. Port Natal. From M. Gueinzius' collection. 



30. Flatoides RUDisPMas. 



Ricania rudis, Schaum. P 



Cicada rudis. Stall, Cic. 81, pi. 21, f. 113. ? 



Fuscus ; caput striatum ; frons carinatus ; 'prothnrax fulvus^ cari- 

 natiis, fusco maculatus ; mesothorax tricarivatus^apice flavun ; 

 melathorax et pectus ferruginea , abdomen ferrugineo varium; 

 pedes fiilvi ; aUe antica angustiores, fusca, ad costam nigrce ; 

 alcB posticce cinerece, apice fusca. 



Body brown : head as broad as the chest ; crown finely striated ; 

 very concave behind, slightly convex in front, its lengih iu the middle 

 about half of that on each side ; front very much longer than broad, 

 surrounded by a slight rim, rounded and rather broader on each side 

 towards the epistoma, to which it is closed joined by a very slightly 

 concave suture, obliquely and very finely striated on each side of the 

 very distinct middle ridge which is continued along the epistoma ; 

 the latter is lanceolate: fore-chest conical in front, slightly concave 

 on the hind l)order, tawny with brown spots h;iving a slightly raised 

 tawny middle stripe, its length on each side about one-third of that 

 in the middle: middle-chest having a slightly raised tawny middle 

 stripe, and on each side a sligiitly undulating ridge: tip yellow: 

 hind-chest and breast ferruginous: abdomen obconical, partly fer- 

 ruginous, a little longer than the chest ; a])pendages at the tip black r 

 legs tawny: fore-wings narrow, brown, paler in the disk and about 



p3 



