DACTYLOPIUS PULVERARIUS. 175 



her body, only a small quantity remaining attached to 

 the food- plant. 



Larva. Pale yellow; elongate-ovate. Antennae of 

 six joints, of which the last is the longest, and equal in 

 length to the first four together ; joints one to five 

 nearly equal in length ; all with fine hairs. Loop of 

 rostrum reaching to insertion of intermediate legs ; 

 the latter with fine hairs. Anal orifice with six hairs ; 

 lobes normal, each with a long hair. 



Habitat. Chiefly on Agrostis vulgaris, but also on 

 other grasses. I first discovered this species at Sandi- 

 way, Cheshire, in 1891. I have also taken it freely on 

 the Helsby Hills, in the same county, and at Chisle- 

 hurst, Kent. Mr. Brockton Tomlin has obtained 

 examples at Deal. 



Habits. I have occasionally found examples of 

 young adult females actively moving about in the 

 " crowns " of the grasses on which they feed, and 

 Mr. Tomlin's examples were found wandering over the 

 leaves of a specimen of Galium. Finally, however, the 

 female locates herself between the leaf -sheath and 

 the flowering stem of the grass, and there secretes 

 the fine white powder which covers her body and 

 her eggs. This takes place at the end of August 

 and the beginning of September. Probably the eggs 

 do not hatch till the following spring, but of this I 

 have at present no proof. 



Distribution. Not recorded outside the British Isles. 



EXPLANATION OF THE PLATE. 



PI. LXVI, fig. 4. Adult female (dorsal) from life. 



X 10. 



Figs. 5, 5 a, 5 b. Antennas of adult female. X 150. 

 Fig. 6. Anal segment of adult female, with lobes 

 and anal orifice. X 150. 



