THE MURRAUGH 41 



where the female of either species is known as 

 the " murraugh." 



Phryganea striata appears late in the evening 

 flying rapidly over the water close to the sedge- 

 lined banks. At Uxbridge, on the Colne, I 

 have taken striata just at dusk, and then, when 



FIG. 13. Genitalia of Phryganea striata, $, 

 from above. 



almost dark, grandis has issued forth. The two 

 species may be readily separated by the form 

 of the male genitalia, of which outlines are 

 given in Figs. 13 and 14 respectively. The larvae 

 make cases entirely of vegetable matter. 



