278 MAINE AGRICULTURAL EXPERIMENT STATION. I916. 



The nymphs are included in froth masses similar to those of 

 the other froghoppers and are smooth and highly polished 

 light green in color, becoming slightly more yellowish in later 

 stages, the head distinctly blunt, almost truncate in front and 

 the front somewhat flattened as compared with the bulbous 

 form of the species of Philaenus. 



Fig. 40. 



The smallest individuals taken (2nd instar?) a, Fig. 40, are 

 4 mm. long, tylus broad and distinctly truncate, beak reaching 

 base of abdomen, the meso- and metathorax with no distinct 

 development of wing pads, the color light green. The abdomen 

 is pyriform, a little wider on third segment than thorax, the 

 legs nearly uniform in size, the third pair slightly larger. 



The next larger individuals (3rd instar?) b, Fig. 40, are 5-6 

 mm. long, similar in shape and color to the preceding stage, but 

 with the wing pads clearly indicated, those of the mesothorax 

 extending only slightly over the hinder ones, the beak reaching 

 to the third coxae. 



The final nymphal instar (5th?) c, Fig. 40, is 6 to 7 mm. 

 long, based on measurement of three individuals, light green 

 in color with slightly more of yellowish and with the wing pads 

 which extend to base of third abdominal segment of yellowish 

 or whitish color. The beak extends to base of third coxae, the 

 legs nearly uniform in size, the hinder pair only slightly larger 

 than the middle and the middle a trifle larger than the front 



