4l6 NEW YORK STATE MUSEUM 



or al)cl(.)minal Ici^s pale )'ello\vish with dark o'recn bases [pi. 20, ^ll^^ 6]. 



1 he cocoon is cylindric, ovoid, sih'ery white and aliout: ? 16 inch loni;. The 



adult has been characterized b)- iJr Harris substantialh" as follows: 



I he male is i^. inch lont^ with a wing spreatl of about ~ \ inch. The 

 body is black above,, brown beneath and the wings are transparent with 

 changeable tints of rose-red, green and yellow. Tin: legs are a dirty leather 

 yellow color. The antennae resemble short black feathers, wide at the end, 

 narrowed to a point and are cinded inward on each edge so as to appear 

 liollow. '{ lie female is about -' ,,, inch long and with a wing spread of ^^ 

 inch or more. .She is yellowish brown ab(jve, with a short blackish stripe 

 on each side of the mitldle of the thorax. The body beneath antl her legs 

 are paler, of a dirty \ellow color, and her wings resemble those of the male, 

 rile antennae are short, taper to a [loint, consist of 19 segments antl are 

 serrate on one side. 



Spruce bud worm 



Tortrix f mm fcTii 1U1 Clem. 



Trees dyini; in masses nr (lumps nf greater or less extent are very likely affected by 

 this spec ies. 



The spruce bud worm has liecn cliaracterized b\' Dr Packard as the 

 most destructive eneni)' of spruce in certain portions of Maine. He and 

 others have placed on record a numlier of instances of severe injury 

 resulting from this insect's work. This is due, as observed by Mr Kellogg, 

 to the fact that there are in the spruce but a few Inids, usually two or three 

 at the end of a twig, and il they are destroyed the tree does not reproduce 

 them till the loilowing \ear. This makes it x'ery easy for an insect feeding 

 on these portions to inllict \"ery serious damage. 



Description. Young larvae have been described by Dr Packard as 

 uniformly pale green with a yellowish tint. The head is dark brown, the 

 ihor.icic shield amber, with two dots on the posterior margin ; hairs aljout 

 half the length (.)f the l)od\' thickness. Length about 3/,o inch. Just 

 before th<; last molt they are uniformh' rust-red brown with the tubercles 

 duller, thi' he-ad and thoracic shield black. The full grown larva has an 

 unusuall)- tliick, stout body tapering gradually from the midille to the end 

 and slightly flattened from above. The head is not quite so wide as the 

 body, a very dark brown, though lighter than before the last molt. 



