136 



4 Scutelluni laterally broadly dark brcwn (5) 



4a Sciitellum concolorous (6 ) 



5 Tegmina feebly granulate 3 saccliaricida 



5a Tegmina strongly granulate 6 sinensis 



6 Antennae shorter, grranulation dark antl stronger 



2 graininicida 



6a Antennae longer, granulations paler and feebler. .4 I'iticnsis 



7 Longwinged forms (8) 



/■a Shortvvinged forms (9) 



8 Tegmina almost immaculate, some of the apical veins lightly 



suffusedly infuscate 4 viticnsis 



8a Median cell sometimes smoky, also 5th and 6th apical cells 

 (except small hyaline spots at apex) 3 saccliaricida 



9 Antennae longer and stouter, tegminal granules compara- 



tively feeble and paler 3 saccliaricida 



9a Antennae shorter and less stout, tegminal granules stronger 

 and darker 2 graniinicida 



Table of known nymphs of the genus Pcrkinsiclla. 



1 Ground colour of frons darkish-brown with white marks : 



a dark brown stripe across the base of the tegminal and 

 wing pads, apex of tegminal pad dark brown. ../... . 



I psendomaidis 



la Frons dark basally with pale marks, j^ale apically ; tegmina 

 not striped transversely as above (2) 



2 A conspicuous black spot at apex of abdomen on each side ; 



tibial spur fuscous 2 graniinicida 



2a No spot (or very inconspicuously) at apex of abd.omen on 

 each side ; tibial spur ])ale (3) 



3 Base of ist segment of hind tarsi brown; clypcus blackish- 



brown 4 7'iticnsis 



3a First segment of hind tarsi entirely ])ale ; clypeus pale fus- 

 cous 3 saccliaricida 



The nymph of sinensis is not yet known ; that of z'astatri.v has 

 been briefly described by Breddin, but not so as to be included 

 in the table. 



I. pseudouiaidis. 



PI. XII. figs. T-3. 



Phacalastor psendomaidis Kirkaldv 1. c. 



This species tends to connect typical Perkinsiella with Dicrano- 

 tropis, but still has the widened antennae. ]\Ir. Muir has now 



