356 LEPIDOPTEKA. 



are not half as long as the fore Avings, which are rather broad 

 Avhile the hind pair are lanceolate. 



•'The larvae mine very narrow serpentine paths in the inte^ 

 rior of leaves, the mine being always on the upper surface. 

 They vary much in form, being sometimes a slender gallery or 

 line, either simple, or enlarged towards the end into a blotch. 

 When the larva is full-fed it quits the mine, cutting for this 

 purpose the separated cuticle, in order to Aveave a minute co- 

 soon." (Clemens.) N. corylifoliella Clemens mines the hazel. 

 N. platandla Clemens mines the button-wood tree, or syca- 

 more, and N. amelanchiereUa Clemens mines the leaves of the 

 June berry in June and July. 



Pteropiiorid.e Latreille. The small group of Plnme-moth% 

 may be at once known by their fissured and plumed wings. 

 The body is long and slender, with long antennae and legs. 

 They are the lowest moths, the long slender abdomen and fis- 

 sured wings being marks of degradation. The larvtxi have six- 

 teen legs and are rather hairy. They form no cocoon, but. 

 fastening themselves by the tail to a leaf or stem, shed their 

 larva-skins and appear in the pupa state. Some of the pup* 

 are nearly as haiiy^ as the larvae, others are quite naked. IVlost 

 of the larvffi feed in the earlj^ summer months, and the perfect 

 insects appear rather later, though some may be seen in spring. 

 (vStainton, Manual of British Butterflies and Moths.) 



In Ptc-ropl torus the hind margin of the fore wing is more or 

 less deeply cleft, while the hind wings are almost divided into 

 three separate slender lobes or plumes. Tlie larvje live in the 

 liowers and stems as well as on the leaves of plants. P. peri- 

 .tcelidacti/lus Fitch (Plate 8, fig. 23 ; a, larva : />. pupa, enlarged) 

 is tawny yellow, the fore Avings having three lai-ge white spots 

 and two bands beyond ; the outer line is thread-like, the inner 

 line being much broader on the costal division of the wing, re- 

 appearing at the base of the split in the Aving. and beloAv 

 extending out to the loAver half of the outer line. The hind 

 wings are darker broAvn than the rest of the moth, while the 

 tliird and shortest division of the Aving is white, but broAvn at 

 the end, Avith the fringe on the outer fourth of the wing still 

 darker brown. The let's are Avhite with tufts of broAvn scales 



