BLOOD-VEIN— MALLOW 



pro or false legs, and in consequence progress by arching 

 the body, and then drawing the hinder part along. The 

 larva seems to be carefully surveying, or measuring, the 

 area it wishes to negotiate. The present species is of 

 wide distribution, but is rare in Ireland and Scotland. 

 Damp situations where there is a profusion of rank 

 herbage are frequented, and the chief food-plant seems 

 to be dock. The brownish-grey larva has three light 

 lines down the back. The perfect insect has pointed 

 edges to the pale, fawn-coloured wings (especially those 

 behind), with a blood-vein running across both pairs, 

 succeeded by a narrower one towards the outer edge, 

 and joining the former near the top corner of the fore- 

 wings. 



FAMILY HYDRIOMENID^ 

 Mallow. — {Ortholithacervinata.) This species (Fig. 34) 







makes a late appearance in September and October, 



79 



