CICADIDAB. 



59 



posterior depressed margin. Eyes very large. Posterior margin about one- 

 fom-th. total length of pronotum. Operciila rounded apically, barely longer 

 than meracanthus, widely visible in dorsal view. Fore femora weakly armed. 

 Hind tibiae with five non-apical spines. (Hypandrium missing in type.) 

 Lateral projections of pygophor short, blunt, emarginate dorso-apically. 

 (Rostrum and most of legs missing in case of type.) 



Length to tip of Vlllth tergite 25-3 mm., tegmen length, 43-3 mm., greatest 

 width of tegmen (about halfway), 15-6 mm. 



Male nymjph, last instar : Eyes very large, antennae with 8 segments, of 

 which I-IV have the usual few very large setae, while the rest are densely and 

 evenly clothed with numerous small bristles. The tegmen pads show distinctly 

 the strong and much curved Cui and the weak M stem alongside it. Fossorial 

 fore-legs with femora as figured. Pygophor ends in a typical median tergal 

 spine, which is, however, delimited by a furrow shown dotted in the figure. 

 Length 24-0 mm. (Length of head and thorax added to that of the abdomen, 

 to avoid curve.) 



Upolu : Lanutoo, 1 more or less fragmentary, taken from a spider's 

 web ; skilfully mended by Mr. China ; no date (Hopkins) ; Malololelei, exuviae 

 of one last instar ^ nymph collected in rain forest at 2,000 feet, 26.iv.1924 

 (Bryan). 



I have felt very chary of erecting a new genus on such poor material, but 

 when one considers how many new Orders and lesser groups are founded on far 

 less complete fossil insects, the objection ceases to have weight. The genus is 

 well characterised, and the species should be recognisable from the above 

 description. 



The nymph, which is in perfect condition, is as aberrant as the imago. 

 In most cicada nymphs known to me (e.g. Platypleum, Henicopsaltria, Dicero- 

 procta, Odopoea, Magioicada, Melampsalta, Baeturia, Tettigarcta), the antennal 

 segments, even to the apical one, are supplied with a relatively small number 

 (2 or 3 up to about 6 per segment) of very large setae, sometimes as long as the 

 segment itself, whereas in the present species these are replaced on segments 

 V-VIII by numerous small bristles. 



