130 



[May, 



which the legs arc attached arc marked with dark, and so are the ends of the joints 

 and the tarsal claws. Anal plate and limbs also darker. As all the material seen 

 by me has been in alcohol, it is difBcult to be exact as regards colour. 



Nymph moderately slender, 

 subcylindrical, the strong fringe 

 on the abdomen helping to give 

 a somewhat flattened aspect to 

 it. 



Head straight in front when 

 viewed from above ; antennse 

 (in the <J at least) a little longer 

 than the body, but not wound 

 round the abdomen. The labium 

 and mandibles protrude ; the 

 former shield-shape, with nu- 

 merous hairs ; the latter long 

 and falcate, with deeply cut 

 teeth ; the maxillary palpi curved inwards, first two joints short, subequal, the last 

 three long and tapering. Labial palpi have the three joints gradually increasing in 

 length and decreasing in thickness. 



Mesothorax robust, with trapezoidal scutellum ; metathorax has a similar but 

 smaller scutellum. Wing-cases I'eaching end of fifth segment ; upper pair blunt, 

 lower more acute. Tarsi of all the legs fringed, median pair most strongly so. 



Abdomen with 

 dense fringe run- 

 ning from third 

 and meeting below 

 eighth segment. 

 The middle of the 

 ' Ist segment above 

 with a raised 

 curved line ; the 

 posterior angles 

 and part of pos- 

 terior margin 

 coveredwith sharp 

 points. The third 

 to sixth segments 

 inclusive, above, 

 each with two an- 

 terior, nearly cir- 

 cular, small plates, 

 bearing from two 



to four backward-directed hooks ; the fifth segment has in addition two posterior 

 transverse plates, with four or five forward-directed hooks. 



The branchial tracheaj occur on the pleurte above and below the lateral line ; 

 above on the second to eighth segments in bundles of about four filaments on the 



