Nov., '03] ENTOMOLOGICAL NEWS. 299 



of my students at the Massachusetts Agricultural College, and 

 his descriptions follow : 



Egg. — r.14 to 1.4 mm. long, .48 to .56 mm. in diameter; cylindrical 

 with rounded ends ; smooth, lemon yellow before hatching ; empty shells 

 opaque, white. Length of egg stage eight days. 



The eggs are laid in clusters along the mid-rib of the newest 

 leaves in a somewhat definite manner. Along the center of 

 the mid-rib the female lays a row of eggs separated from each 

 other by nearly half their length ; on each side of this she 

 deposits another row, the eggs of which alternate with those 

 of the first row. Close to, and outside of these there may be 

 another row, or eggs may be scatteringly laid there. As the 

 leaves expand, the eggs become separated by more than half 

 their length. In the clusters noted, the number of eggs varied 

 from two to forty-five. Egg-laying continues for about eight 

 days. 



First Larval Instar. — Length, 3.74 mm. ; width of head, .58 mm. ; 

 body cylindrical, well annulated, greenish when first hatched, later be- 

 coming yellowish white, glabrous. Head viewed from above globular, 

 from the side oval, greenish yellow ; ocelli black ; antennse black, .22 to 

 .24 mm. long, obscurely seven-segmented, above and to the front of the 

 ocelli ; clypaeus quadrate, labium rounded, deeply notched ; three pairs 

 of small thoracic legs present, prolegs absent ; a convoluted fold of skin 

 of a lighter color extends along the sublateral surface, most prominent 

 upon the abdominal segments ; at the posterior end of each fold, on the 

 last segment, is an appendage .24 mm. long, black, three-segmented, 

 and bearing a circlet of spines upon the distal portion of its first segment ; 

 upon segment 13, on each side beneath the sublateral fold, is a rounded 

 tubercle which appears to be an atrophied leg ; a narrow band, inter- 

 rupted on each side by an oblique whitish line, on the dorsum of the 

 second segment ; there is a spot at the base of each foot, a linear spot 

 on the venter of segments 2, 3 and 4, a spot on the lower valve and the 

 lateral edges, and a median spot bearing a spine on the upper valve of 

 the cremaster — all dull black. 



Upon hatching, the young larvae vSpin a fine web for support, 

 and then eat through the leaf close to the mid-rib and spin a 

 loose web upon the upper surface, where they remain and feed, 

 drawing the leaf into folds. As they grow larger they eat very 

 rapidly and draw in new leaves as they need more food. 



Second Larval Instar. — Length, 6.2 mm. ; width of head, .82 mm. ; 

 appearance as in the previous stage except as noted ; larva now very pale 



