ulTei 



438 Mr. C. FiTTler on some species of 



almost cylindrical. When viewed from above, the body is elongate- 

 ovate with a marginal keel. Colour of dorsum claret-brown, some- 

 times mottled ; ventrum chestnut. Thoracic segmentation indicated 

 by tran verse bands of red. Antennae 10-jointed, tapering, joints of 

 a dark brown colour, except the 3 basal, which are red. Legs .stout, 

 and when the insect is in situ, always extended ; those of Westtvuodii 

 are drawn under the body. Opening of pouch in the form of a 

 transverse slit, terminal. Intussusception extending in to the region 

 of the mesothorax. The species is more easily distinguished from 

 the foregoing by the nature of its secretion. This appears mealy, 

 and besides covering the whole body, is strewn widely around it. 

 When highly magnified the meal is seen to consist of particles of 

 glassy cylinders bent almost into the form of a circle. Length of 

 majority of specimens one incli, width one-half inch. 



On Castoarina sj). Perth. 



3. Callipappus hufo, sp. n. (PI. XV, figs. 2, 2 a, 2h, 2 c) 

 AdiJt 9 stationary, found in exposed positions on twigs or leaves, 

 to which it is affixed by a silky pad lying between the bases of the 

 posterior legs. The legs appear to grasp the twig or leaf, but do not 

 in reality. Length of several specimens 0'5 inch. Viewed from 

 above, the body tapers to a point at the head and is abruptly truncate 

 behind ; contour almost triangular. Cephalic region thin and flat ; 

 thoracic in dated above and below ; dorsum with two median humps. 

 Where attached to twig or leaf there is a dej^ression in the ventral 

 surface. A decided keel runs round the head and terminates on 

 either side of the base. The colour of the dorsum is not uniform ; it 

 is purijle-brown, with reddish patches on either side of the median 

 line above the intermediate and posterior legs. The colour of the 

 ventral surface is a purple-brown. The whole of the body thinly 

 covered with a fine meal, which is more plentiful in the region of 

 the abdominal segments. Opening of the pouch in the centre of the 

 posterior end, almost circular. 



Taken on Casiutrina humilis, Banksia menziesii and B. 

 ilicifolia. The species approaches GaUipappus (Gcelostoma) 

 rubiginosus reported by Maskell from South Australia ; it 

 differs chiefly in having 10-jointed antenna;. 



Genus Icerya, Signoret. 

 4. Iccri/a purchasi, ]\Iaskell. 

 This species occurs in small colonies oii Acacias and 

 Citrus, etc., but is kept completely in check by Nuviits 

 cardinalis and other natural enemies. 



