248 ICERYA. 



stationary ; with or without ovisac. Rostrum and 

 mentum present. Segmentation inconspicuous. 



" Adult males without tassels on the abdomen ; 

 antennae with two dilations on each segment" (Maskell, 

 1. c.). 



To this genus belongs the destructive cottony- 

 cushion scale leery a purcfiasi, Mask., which "is sup- 

 posed to have come originally from Australia. It has 

 been very injurious to orange and lemon trees at the 

 Cape of Good Hope and in California. In Auckland it 

 has destroyed whole orchards of the same trees, and in 

 Nelson and Hawke's Bay it is a dreadful pest on all 

 kinds of plants " (Maskell, 1. c.). leery a gegyptiacum 

 was at first made the type of the genus Crossotosoma, 

 but the insect is now recognised as a true Icerya, and 

 the name has been abandoned. 



The ovisac, when present, is attached to the abdomen 

 of the female (see Fig. 7,& in the text), in which respect 

 it is similar to those of the genus Orthezia. 



ICERYA ^GYPTIACUM (Douglas). 



(Fig. 7, a,/,.) 



Crossotosoma segyptiacum, Douglas; Ent. Mo. Mag., 



s.s., vol. i, p. 79, figs. 1-4 (1890). 

 leery a ssgyptiacum (Doug.), Riley and Howard ; 



Insect Life, vol. iii, p. 97. 

 leery a ssgyptiacum (Doug.), Newstead; Ind. Mus. 



Notes, vol. iii, p. 7, pi. ii, figs. 2 a-d (1894). 



Adult female (Fig. 7, a, b) " deep orange, becoming 

 black after death ; broad oval, slightly convex above. 

 Head small, rounded in front. Antennae black, short, 

 stout, of eleven wide joints, with many projecting pale 

 hairs ; . . . the anterior margin of each with a pale 

 ring. . . . Eyes black, shining, not faceted, projecting 

 from a wide oval base in the form of a short, sub- 



