SCALE INSECTS. 393 



insect is entirely concealed. She never leaves the 

 spot. As she develops, she loses legs and antenna? 

 as the skins are shed, and a very long sucking tube 

 develops : the anal end of the body is usually lobed. 

 (Plate 50, Fig. 7.) The eggs are numerous, within the 

 body, and from 100 to 200 living young are deposited. 

 The male insect commences life as a six-legged 

 larva similar to the female; it forms a scale and is 

 said to pupate under it. The adult male is winged, 

 but with fore wings only; there is a pair of hooks, 

 which occur behind the fore wings. (Plate 50, 

 Fig. 6.) 



Types of Scales. 



The Palm Scale, of genus Lecanmm, is a rounded, 

 bluish-brown scale found on palms, in orchards, and 

 on garden plants. One species is called the ''olive 

 scale," and it has fluted margins. We found a 

 species of Lecanmm on the leaves of the grass tree 

 ( X author rlioe a). (Plate 50, Figs. 4 and 5.) On 

 examining various scales, we found eggs under 

 many of the larger scales. (Plate 50, Fig. 3.) 

 The larvee were in all stages of development. 

 Under another scale we found a female (Plate 50, 

 Fig. 2), while from beneath yet another one we 

 found the pupa and larva of what appeared to be 

 a parasitic wasp. A young larva is shown on 

 Plate 50, Fig. 1. 



Another type of scale pests is Mytilaspis, the 

 mussel scale. (Plate 50, Fig. 9.) In the bush there 

 is a soft, creamy scale, the individuals of which 

 cluster so closely that they completely surround 

 twigs of gum-trees. It has an opening at the apex, 

 and its name is Erioc cccus. 



