174 Transactions of tJie Boyal Society of South Africa. 
Africa," Journal of Forestry, vi., p. 44, May, 1882, quotes Triraen as 
writing under date of March 17 (1882?), that the insect had then mainly 
attached itself to orange-trees, " many of the finest plantations have been 
destroyed and others are on the high road to destruction. You will 
remember," he says, " how good and cheap oranges used to be here ; 
they have lately been threepence and fourpence apiece, and often inferior 
in quality even at such a price." 
In 1886 Miss Ormerod received specimens from Port Elizabeth 
(letter to C. V. Eiley), and in 1888 it was collected at Eichmond, Natal 
(Lewis, I.e.). 
After this date the spread of the insect was probably rapid, and the 
list of host-plants grew with the range of distribution. 
The Vedalia ladybird {Novius cardinalis) was introduced into California 
in the year 1888 and was sent from there to South Africa three years later. 
Collection No. : 6. 
52. ICERYA SEYCHELLAEUM (Westwood). 
(Plate XXII., Fig. 47. Plate XXV., Fig. 54. Plate XXVI., Fig. 62.) 
Dorthesia seycliellarum Westw., Gard. Chron., p. 830, 1855. 
Orthezia seycliellarum Targ., Catalogue, p. 30, 1869. 
Coccus sacchari Sign., Ann. Soc. Ent. Fr. (4), ix., pp. 93, 94, 1869. 
Icerya sacchari Sign., Ann. Soc. Ent. Fr. (5), v., p. 352, 1875. 
seychellaricm Mask., N.Z. Trans., xxix., p. 329, 1897. 
,, ,, de Charmoy, Pr. Soc. Amic. Scien., p. 47, 1899. 
CklL, Ent. Mon. Mag., p. 86, 1902. 
Green, Mem. Dept. Agr. India, ii., 2, p. 18, 1908. 
Ovisac : White, usually short and broad, with posterior margin 
truncate. Upper surface flatly arched, faintly fluted ; most common 
length, when completed, about as long as the body of the 2 . 
Adult 2 '■ Size with waxy secretion, but without counting ovisac, 
usually about 10 mm. Waxy secretion arranged in more or less regular 
masses, yellow on dorsum and white at margin. Around the body are 
numerous fine silky or glassy filaments. The secretion of the young 
stages is often entirely yellow, the colour being slightly darker than in 
the adult. 
Denuded of its waxy covering the insect is orange-red in colour. 
Cleared and mounted the adult ? averages ^ mm. long. The derm 
has numerous hairs and gland-pores of two sizes ; the smaller are more or 
less broadly oval, with a diameter of 10 ^. These have a beaded edge and 
an elongate elliptical pore. The larger pores are distributed around the 
