NEUROPTERA. 



stones, and even sometimes of the cases of smaller Phryga- 

 nidce (which are then arranged in the same way as the 

 vegetable fragments). They live in standing or slowly running 

 water. 



Sub-genus Glyfhot;elius, Stephens. 

 Apical margin of the anterior wings with a rounded emar- 

 gination. Case formed of imbricated fragments of grass or 

 wood. 



7. Limnophilus pellucidus, Oliv. ; Steph. 111. 210, 1 ;. 

 Walk. Cat. 18, 2; L. basalis, Curtis; L. emargi- 

 natus, Curt. Phil. Mag. 122, 1 and 2. 



Brownish ; antennae, palpi and legs paler ; anterior 

 wings yellowish-grey, spotted with brown ; a narrow, 

 rhombic fenestrated spot in the centre of the wing ; 

 a larger round spot about the anastomosis (which, 

 however, may be entirely wanting, or broken up into 

 a number of small dots) ; both spots vary much in 

 form and size, and, when they unite, may form a 

 large crescent (L. basalis, Curt.); the emarginate 

 apex is bordered with white, with dark spots; on the 

 anterior margin is a blackish pterostigma ; posterior 

 wings limpid, with a brown apex, in which a paler 

 spot not unfrequently occurs. This species varies 

 considerably ; sometimes the anterior wings are almost 

 uniformly pale brown. 



Length 7 lin. ; exp. 12 lin. 



Hab. not rare in the summer around London, New 

 Forest, Devonshire, Norfolk, Suffolk, Dover, Scot- 

 land, &c. 



L. binervosus, Villers; P. punctato-lineata, De Geer; 



