96 LECANIUM PERSIC^E, VAR. CORYLI. 



enough to send me Bohemian examples which I find 

 are identical with those found in this country on Ribes 

 spp., etc. Taking these facts into consideration, I 

 have decided' to adopt Linngeus's name ; at the same 

 time I should have preferred retaining Fitch's, which 

 is undoubtedly the more appropriate of the two. 



Habits. Single-brooded as with the type ; the larvae 

 hatch in June (26th June, 1896), and are of a pale 

 yellow colour. 



EXPLANATION OF THE PLATE. 



PL LI, fig. 9. --Insects natural size in situ on 

 currant branch : 9 a, females at period of gesta- 

 tion ; 9 /;, females after parturition ; 9 c, scar or 

 mark of secretion left upon the branch after the 

 removal of the insect. 



Fig. 10. Larva shortly before hibernating, with 

 long, iridescent, glassy filaments. X 20. 



LECANIUM CILIATUM (Xewstead, MS.), Douglas. 

 (PL LII, figs. 1-11.) 



Lecanium ciliatum,* Douglas ; Exit. Mo. Mag., s.s. y 

 vol. ii, p. 67, pi. i, figs. 3 a-3 d (1891). 



Adult female after parturition (fig. 1 ? ) ochreous- 

 brown or dusky chestnut-brown ; parasitised speci- 

 mens pale ochreous ; form varying according to the 

 position of the female on the food-plant ; those fixed 

 in a transverse position are often more or less trans- 

 versely ovate (fig. 2), the breadth being equal to or 

 greater than the length ; those fixed in a longitudinal 

 position slightly elongate-ovate; central area with a 



* The name ciliatum was given by me in my original MS. description of 

 the insect, which was approved by Mr. Doiiglas, the description in part 

 being embodied in his diagnosis. 



