204 MYTILASPIS F1CUS. 



types are from the same kind source, and I am greatly 

 indebted to Mr. Douglas for them. The species has 

 not been met with elsewhere in England, and does not 

 appear to be very widely distributed on the continent 

 of Europe. 



EXPLANATION OF THE PLATES. 



PL XXVI, fig. 3. Pygidium of adult female, x 250. 

 PL XXVII, fig. 7. Margin of pygidium of adult 

 female. X 600. 



MYTILASPIS PINN^IFORMIS (Bouchc). 



PL XXV, figs. 1012; PL XXVI, fig. 1 ; 

 PL XXVII, figs. 4, 0. 



Mytilaspis pinndtformis, Bouclie ; Ent. Zeit. (1851), 



p. 111. 

 Mytilaspis pinndtformis (Bouche), Sign. ; Essai, p. 



141, pi. vi, figs. 4, 8. 



Mytilnxjfisfulva, Targioni-Tozzetti; Catal. (1868), 4 1. 

 Aspidiotn* rili'irola, Packard ; Guide to Stud. Ins., 



1870, 2nd ed., p. 527. 

 Mytilaspis fulva, Targioni-Tozzetti ; Effemeridi del 



Comizio Agrario di Firenze, 1872. 

 ? Mytilaspis flavescens, Targioni-Tozzetti; Ann. del 

 ' Minist. Agric., Ind., e Commerc., 187<>, :><). 



Puparium of adult female yellowish brown to dusky 

 brown, or greyish ochreous, paler at the margins; 

 edges of laminae frequently white; sometimes the 

 whole puparium is faintly farinose ; convex, straight, 

 curved, or mytiliform. Larval exuviae dull yellow to 

 orange-brown; second exuviae usually of the same 

 colour. Ventral scale complete, usually comes away 

 unbroken. Form not differing materially from M. 

 porno rum, but I have never seen the colour so dark as in 

 this latter. 



