132 PHYSOKERMES ABIETIS. 



PHYSOKERMES ABIETJS (Geoffrey ). 

 (PL LVIII, figs. 1-11; PL LIX, figs. 1-5, 5 a, 56.) 



Chermes abietis rotundus, Geoff roy ; Hist, abreg. Ins., 



ii, 507, 7 (1764). 

 Coccus abietis, Modeer ; Gotheb. Vetens. Hand!., i, 



27, 20 (1778). Gmelin; Syst. Nat., i, 2221, 32 



(1791). 



Lecanium abietis, Signoret ; Essai, p. 273, 50. 

 Coccus picese, Sclirank ; Fauna Boica, 146, 1271 



(1801). Boisduval; Entom. Hort., 320 (1867). 

 Coccus hemicryphus, Dalman ; K. Vet. Acad. HandL, 



1825, p. 369, 6, tab. iv, figs. 18-27. 

 Physokermes hemicryphus, Sign. ; Essai, p. 280, pi. 



xiii, figs. 1-1 c. 

 Coccus (Lecanium) racemosus, Ratzeburg ; Stett. 



Ent. Zeit., iv, 204; Forstins., iii, 191, 1. 

 Lecanium racemosum, Goureau ; Ins. nuis., 159. 



Signoret; Essai, 275, 52, pi. xii, fig. 16. 

 Physokermes abietis (Geoff.), Newstead; Ent. Mo. 



Mag., s.s., vol. iv, p. 207, figs. 1-4 (1893); 



Coccidas Brit. Isles, vol. i (Ray Soc.), pp. 1, 5, 



6, 28, 50 (1901). 



Adult female at period of parturition (PL LVIII, 

 fig. 1 ; PL LlX, figs. 1-4) bright chestnut-brown, fre- 

 quently with dull crimson blotches or shadings, and 

 sometimes also with black suffused markings, especially 

 at the posterior extremity; after death all trace of 

 crimson disappears, and the insect changes to a 

 uniform dusky brown, yellowish-brown, or fuscous ; 

 these colours being retained in cabinet specimens. 

 The external form of the female varies considerably, 

 according to its position on the branch of the food- 

 plant, but all the forms may be classed under two 

 heads : those fixed between the bud- scales and the 

 branch (PL LVIII, fig. 1 ; PL LIX, figs. 1-4), and 

 those occupying less confined positions, such as the 



