1921.1 



197 



remained in the genus Lecanopds, is unfortunately no longer character- 

 istlc since its removal to the present genus. But the laws of nomenclature 

 will permit of no change in the original name of the species. 



Eriopeltis festucae Fonsc. (Fig. 9.) 

 If a suitably stained preparation of Eriopeltis festucae is examined, 

 it will he found that few of the conical spines project completely beyond 

 the surface of the body. Most of them appear to be sunk in obconical 

 pits, though a few cases will occur in which the whole spine is exposed. 

 It would appear, therefore, that the spines are retractile, their move- 

 ments being governed by the tension of the body fluids. Figure 9 



Pig 9.-Er;opeUis feducae. Adiolt $ : a, spine completely retracted ; b, spines 

 partially retracted ; c, spine completely extended : all X 45U. 



shows, more or less diagrammatically, the position of the spines 

 (a) when completely retracted, (J) when partially withdrawn, and 

 (c) when fully extended. 



Luzulaspis luzrdae Dufour was found, in September, in unusual 

 abundance in a field which is very closely grazed by the united efforts of 

 cattle, horses, goats, and geese. The snowy-white ovisacs were so 

 crowded upon the leaves of the plant {Luzula campestns) that the 

 infested areas could be distinguished from some distance away. 



Lecanium capreae L.-Dr. W. J. Fordham has sent me examples of 

 L capreae, taken on Uihes, at Edale (Derbyshire). The species does 

 not appear to have been recorded before from this host-plant. 



