entomologist than to the general reader, hence the}' need not 

 be mentioned here. 



The following description of the saltona in its various stages 

 may be of interest, since the reader maj^ then be able to recog- 

 nize the approximate ages of insects coming to his notice: 



First stage. — There is no trace of wing-pads. The anten- 

 nae or feelers are thirteen-jointed, and have the eighth joint 

 noticeably longer than any of the others. When first hatched, 

 quite light in color and without any definite marking, but 

 soon changing" to a dull grayish-brown. Sides of prothorax and 

 middle-thorax, ill-defined bands on hind legs, and stripe along 

 the back much darker, almost black, in some specimens. Length 

 from 7 to '' millimeters. 



Second stage. — There is still no indication of wing-pads 

 present. The antenna- are now seventeen-jointed, and the 

 third joint is slightly longer than any of the others. The gen- 

 neral ground-color is somewhat lighter than it was during the 

 first stage, being yellowish-gray, and the markings much better 

 defined and clearer. The dark line along the back is well-defined 

 and bordered on either side b}' a lighter one. The hind thighs 

 are now clearly marked in middle above, midway between this 

 and apex by a complete band, and have the apex black. Face 

 in front black. Sides of abdomen marked with wavy lines of 

 dark-brown and yellowish-gray, the dark color predominating. 

 Length from 10 to 12 millimeters. 



Third stage. — The wing-pads are now distinct though very 

 small, and project obliquely downward and backward. The 

 antenna- have from twenty to twenty-two joints. The body or 

 ground color has become decidedly more yellow, while the face, 

 sides of prothorax, and hind thigh bands are jet black. The 

 other markings are reddish-brown. Length 18 to 20 millimeters. 



Fourth stage.— The wing-pads are now of a considerable size 

 and project obliquely upward and backward so that the tips of 

 the hind pair almost reach the back edge of the following ring 

 of the abdomen. The antenna have twenty-four to twenty-five 

 joints; and the colors are even brighter and more decided than 

 in the preceding stage. The reddish-brown markings of the 

 abdomen have changed to blackish-brown, while the eyes and 

 top and back of head are tile-colored. Length from 26 to ;iO 

 millimeters. 



Fifth s/«jg'^. — The wing-pads are now quite large and, pro- 

 jecting backwards, their tips reach the back edge of the second 



