42 G. W. KIRKALDY ON THE STRIDULATING ORGANS 



hours on each occasion ; but although I examined every single 

 Corixa of similar size captured, saundersi did not turn up again. 



Species 7. C. scotti Douglas and Scott (Fig. 15). 



Palae, ^, shortly cultrate, widest near the base, the upper 

 margin a little sinuate apically, rounded basally ; one row of 

 twenty-six suboval, blunt pegs, a little more elongate towards 

 the apex. 



Species 8. C.fossarum Leach (Fig. 16). 



Palae, ^, very like scotti, but much broader at the base; 

 angulate supero-basally and produced a little backwards. One 

 row of thirty-three pegs, those nearer the base short and suboval ; 

 elongate and pointed towards the apex. 



Species 9. C. veiiusta Douglas and Scott (Fig. 19). 



Palae, J", twice as long as broad, upper margin arcuate. One 

 row of about eighteen blunt pegs from base almost to upper 

 margin, subparallel with the lower margin, then two large acute 

 teeth at an obtuse angle to the principal row ; parallel to these 

 two, but close to the upper margin near the apex, are seven small 

 acute pegs. 



Species 10. C. semistriata Fieber (Fig. 20). 



Palae, c^, short, widest near the base. Shorter and broader 

 than in C. venusta ; two rows, one arcuately sinuate, containing 

 about twenty small blunt pegs, and another row of about six 

 close to the apex. 



Species 11. C. limitata Fieber (Fig. 21). 



Palae, c^, broad cultrate, rounded above, narrow at the base, 

 widest about a third from the apex ; two rows of pegs, the lower 

 reaching from the base to about two-thirds of the palar length 

 and consisting of twenty -six short, blunt pegs ; the upper, close 

 to the upper margin, for a third of its length from the apex, 

 consisting of sixteen elongate acute pegs. 



Species 12. C. moesta Fieber (Fig. 22). 

 Palae, c^, upper and lower margins subparallel, slightly 

 diverging apically, upper margin not arcuate, apical margin 

 almost perpendicular ; a single row of twenty teeth, rather blunt, 

 closely following upper margin almost to the apex. 



