-64 — 



Auj^ust. Tlie fciiKilc lays usually three eggs near togetlier on a 

 leaf. The larva does not appear to eat them up, as the eggs are 

 found throughout the month, with simply the hole gnawed by the 

 larva in making its exit. The young larva is solitary, and eats a 

 patch on the under side of the leaf. The larva in the second and 

 later stages were unusually frequent in Maine in 1890. 



Egg. — Diameter 1.3 mm. Low hemispherical, about one-half 

 as high as broad. Under a Tolles triplet the micropyle in the 

 centre is distinctly seen, and the snow-white shell is distinctly 

 though very finely pitted or granulated. Under a half-inch objec- 

 tive the markings are seen to be very peculiar, the surface not 

 being divided into polygonal areas, but studded with microscopic 

 beads, which form near the micropyle at the apex radiating series, 

 and lower down lines of beads more or less parallel with the 

 equatorial diameter. From 3 to 7 eggs are laid on a single leaf. 

 Probably the moth flies from one plant to another, laying a few 

 eggs at a time. 



Freshly hatched hi) va,, stage I. —Described a few hours after 

 hatching, before they began to feed. Length 3.5 — 4 mm. The 

 head is rather large, shining black, smooth, and considerably wider 

 than the body ; not spherical in shape, but somewhat flattened 

 and sub-cordate or bilobed, as the occiput is deeply indented. A 

 large broad, but antero-posteriorly rather short black, mostly 

 smooth prothoracic plate, with slight roughnesses near the front 

 edge where the hairs take their origin ; the hinder edge slightly in- 

 dented on the median line. On each side of the plate is a lateral 

 black i)iliferous wart. 'l"he 2d and t^^ thoracic segments each with 

 a pair of conspicuous, oval, black, flattened, piliferous warts, and 

 two small, round ones on each side, the lower one being about one- 

 half as large as the upper. Abdominal segments 1-6 each with four 

 dorsal, i)iliferous, flattened black warts, the hinder ones a little 

 farther apart than the anterior ones, but yet close to the latter. On 

 segment 7 the four corresponding warts are arranged in a regular 

 trapezoid, the two anterior ones being much nearer together than 

 the two hinder ones. On the 8th segment is a single central dor- 

 sal black, oval, moderately prominent wart, which is twice as large 

 as the largest on the 9th segment ; it is transverse, bearing a bristle 

 at each end, thus having plainly originated from what was once 

 two sei)arate warts. The latter segment bears 4 black wartS' 

 arranged in a regular trapezoid. The 9th and loth segments are 

 held up when the larva walks. The anal legs are black and a 

 little smaller and shorter than the middle abdominal legs. The 



