THE STATE ENTOMOLOGIST. 11 



June 9th. — The past two days have been exceedingly warm, the 

 thermometer rising above 90 degrees F. in tne shade, and. the young 

 lice are running all over the twigs. 



June 11th. — They have all become fixed, having gathered in the 

 greatest numbers around the base of the lateral shoots of the termi- 

 nal twigs. 



June 12th. — A white, waxy secretion commences to issue from the 

 body, in the shape of very fine, delicate threads (see Fig. 3, 3). 



June 22d. — They have increased materially in size, the waxy secre- 

 tion vanishing soon after the last date, leaving what appears to be the 

 body, of a yellowish brown color, though in reality the body is under- 

 neath and separate, and has lost all trace of members. 



July 1st. — Though watched every day, there is no perceptible 

 change since the 22d of June. 



July 2d. — They are now 0.03 long, or three times as large as when 

 hatched, and a thin 3 waxy secretion commences to appear at the pos- 

 terior end. 



July 6th. — This secretion has increased rapidly, and taken on a 

 somewhat oval form, with usually a slight cut or depression posterior- 

 ly. It appears quite distinct trom the original yellowish-brown por- 

 tion, and is duller, or of a more grayish color. On raising it carefully, 

 the louse is seen underneath, yellowish, of a flattened form, the ante- 

 rior tapering more than the posterior portion, which latter is always 

 distinguished by having a patch of bright reddish-brown (see Fig. 3, 5). 

 Though from analogy it must have a beak of some kind, it is so ex- 

 ceedingly fine and fragile that I have never been able perceive it. 



July 10th, — There seems to be another pause in the growth, the 

 scale presenting the appearance of Figure 3, 4. 



July 12th. — A third plate or secretion has commenced from the 

 posterior portion. 



July 15th. — This last plate enlarges rapidly, and is the exact color 

 of the bark. 



July 20th. — The three plates are at present readily distinguished ; 

 the last, which is considerably larger than the two others together, 

 having usually taken a slight curve, which gives the scale its charac- 

 teristic form. 



August 1st. — Their growth is to all appearances completed, the 

 scale measuring 0.12, while the louse measure but 0.05, occupying thus 

 about half the space within. The three different growths are now not 

 readily distinguished, though the narrow end is always reddish-brown. 

 On lifting the scale the insect does not fall out, being retained by a 

 slight whitish fringe extending from each side of the scale (see 

 Fig. 3, 7). 



August 12th. — Some of them have commenced to deposit eggs. 



August 28th. — The eggs are now, apparently, all deposited, and I 

 have watched with interest, as the deposition went on, the body of the 

 parent louse shrinking day by day, instead of extending and becoming 



