212 ISCHNASPIS FILIFORMIS. 



plants, looking like little bits of silk thread accidentally 

 affixed." I have also met with it sparingly on various 

 palms in the conservatories of the Duke of Westminster 

 at Eaton, Chester, and have received it from the Royal 

 Botanic Gardens, Kew, on Diospyrus discolor; from the 

 Botanical Gardens, Dublin (Burbidge), on Fir us, sp. ; 

 and from Scotland and the Midlands on Anthwriwin, sp. 



It appears, therefore, to have become pretty gener- 

 ally distributed, and being a difficult species to destroy 

 will probably spread. 



Distribution. Common on coffee at Lagos, W. Coast 

 Africa ; is plentiful in the West Indies, and also in 

 Brazil. 



EXPLANATION OF THE PLATK. 



PI. XXVIII, fig. 1. Insects, natural size, in situ on por- 

 tion of palm leaf. 



Fig. 2. Puparia of adult female (dorsal). X 25. 



Fig. 3. Puparium of adult female (ventral), x 25. 



Fig. 4. Puparium of male. X 25. 



Fig. 5. Adult female. 



Fig. 6. Adult female after treatment with potash. 

 X 70. 



Fig. 7. Pygidium of adult female (dorsal), x 250. 



Fig. 8. Pygidium of adult female (ventral). X 250. 



Fig. 9. Moulted skin (exuviae) of larva showing 

 tubercles formed of secretionary matter at margin. 



ERRATA. 



Page 51, lines 4 and 11 from bottom, for Ortliewcu read 



Orthezia. 



Page 81, line 17 from top, for BROMILIJ] read BROMELI^I. 

 Page 86, top line (repeated), for bromiliae read bromdiae. 

 Page 124, line 19 from bottom, for cyanophyli read 



cyanophylli. 



