322 ENTOMOLOGICAL NEWS. [Oct., '07 



During the day time the moths remain quiet, assuming a 

 most grotesque position. Grasping some object, preferably 

 the edge or petiole of a leaf, with their middle or hind feet 

 they let themselves hang downward till the outer margins of 

 the closed wings come against some object in which position 

 they remain. At night they remain quiet till well after dark- 

 ness before flying, not being crepuscular. Their flight is quite 

 speedy and produced by very rapid movements of the wings 

 and they are somewhat attracted by light. Their average life 

 seems to be about a week or ten days. 



The Egg. — The eggs are deposited on the underside of the leaf, mainly 

 near the margin and preferably toward the apex. They are oval in out- 

 line, though sometimes a little irregular, lenticular, 

 one of the surfaces being in contact with the leaf. 

 They are about iy 2 to 2 mm. in length by 54 to 1 

 mm. in width, transparent, though sometimes 

 showing a faint milky white color. Examination 

 under the microscope shows that the chorion is 

 finely sculptured, irregular polygonal areas being 

 Fig. 1.— Portion of cho- present, the longest diameters of the polygons 

 dr°a1^n r g. m camera being more or less at right angles to the long axis 

 of the egg. Scattered over the surface are tiny 

 elevations or papillae averaging about four to each polygon, though 

 many lie on the lines between the polygons. No micropyle was ob- 

 served. 



In the later stages the embryo becomes plainly evident and finally 

 escapes through an opening in the side of the chorion after an em- 

 bryonic life of six or seven days. 



First Larval Instar. — The newly-hatched larva measures about 1 mm. 

 at rest and in motion elongates about 1/5 mm., the head being re- 

 tracted into the second (prothoracic) segment when the larva is quiet. 

 The head and second segment are much narrower than the rest of the 

 body. The body increases in lateral diameter to the middle of the 

 fifth segment, then tapers gradually to the end, which is rounded. Its 

 vertical diameter is also greatest at the fifth segment. Annulations are 

 very indistinct. The color is white and semi-transparent, except for a 

 pale straw tinge, which is seemingly internal in location. A row of sub- 

 dorsal horns and a row of lateral horns is present on each side, the sub- 

 dorsal horns being located, one on each segment from the third to the 

 thirteenth inclusive, while the lateral horns are on the third, fourth 

 and sixth to twelfth segments inclusive. The first three sub-dorsal 

 horns are in length nearly half the diameter of the body, and their 



