114 LECAXIITM HEMISPHJEEICUM. 



Lecanium coffese* Walker; List of Homoptera, p. 



1079 (1852). 

 Chermes liibernaculorum, Boisduval ; Essai sur 1'Ent. 



Horticole, p. 387 (1867). 

 Lecanium liibernaculorum (Boisduval), Signoret ; 



Essai, p. 266. Douglas ; Ent. Mo. Mag., vol. 



xxiii, p. 78 (1886). 

 Lecanium beaumontiae, Douglas ; Ent. Mo. Mag., 



vol. xxiv, p. 95 (1887). 

 Lecanium dypeatum, Douglas; Ent. Mo. Mag., vol. 



xxv, p. 58 (1888). 

 Saissetia^ fe0wfepA#rica,Cockerell; The Ent. Student, 



vol. ii, p. 32 (1901). 



Old adult female after parturition (figs. 1, 1 aI d} 

 varying from light brown or reddish-brown to dark 

 brown or dark castaneous, frequently shaded with 

 darker brown or black, the position and intensity of 

 the latter being inconstant. Form more or less hemi- 

 spherical, obovate or ovate, or slightly elongate, and 

 highly convex ; surface smooth and shining to the 

 naked eye, but, under the microscope, the dermis is 

 seen to be thickly studded with minute yellowish dots 

 or points, indicating the position of the derm-cells; 

 sides usually with irregular raised carinas (fig. 1), the 

 two strongest, which sometimes extend towards the 

 subdorsal area, being the remnants of the strong 

 lateral carinae characteristic of the younger insect ; 

 these carinse are usually much less distinct in the 

 hemispheric forms, but very few examples occur 

 without some trace of them; margins more or less 

 narrowly flattened ; body immediately above with a 

 distinct, narrow, and well-defined constriction ; dorsum 

 frequently with a series of whitish secretionary pro- 

 jections forming a median line (fig. 1), and beneath the 

 body is a rather thick secretion of white wax which 

 generally projects beyond its margins. Antennas 



* Although bearing an earlier date than L. hemisphaericum, the latter is 

 always given priority. 



f Deplanches, FauveL 'Bull. Soc. Linn. Norm./ ix, p. 127 (1865). 



