INSECTS INJURIOUS TO CITRUS GROVES. 



501 



outer edge of the last joint yellowish. As they grow 

 older they incline to purple, which becomes deeper as the 

 insects increase in age. The adult female is 

 about 0.05 of an inch (1.3 mm.) in length. 

 The sucking proboscis is longer tha,n thebody. 



Fig. 112. Long- scale (Mytilaxpis qloverii Packard) on orange branch. 



The scale of the male is smaller than that of the 

 female, about 0.04 of an inch (1 mm.) in length, and 

 usually straight. The color varies from shades of brown 

 to yellow when young, becoming darker with age, and 

 reaching a dark brown in the older females. Generally 

 speaking, densely clustered colonies, including both 

 sexes, have a reddish hue. The male insect is a minute, 

 two-winged fly, 0.01 of an inch in length. Its body is 

 pale pink in color, and about one-fourth as wide as long. 

 The eggs are elongate-oval in shape, passing from a light 

 to a purple color before hatching. 



The life history of this scale is so nearly parallel 

 with that of the purple scale that it is unnecessary to enter 

 into details. It has practically the same number of 

 broods, which occur at about the same time as those 

 of the other species. Sometimes the broods of the one 

 species precede or follow those of the other by a few 

 days, but they are often simultaneous. The times of ap- 



