1894] ENTOMOLOGICAL NEWS. IO7 



the fore wings are of plain colors and entirely without markings. 

 The color and markings appear to be of service in concealing 

 them from their enemies. Very interesting dimorphic forms 

 occur in some species, as Teras mimita Robs. When these in- 

 sects are at rest the fore wings are either spread out flat, or they 

 are inclined, roof-shaped, or else they are more or less rolled 

 around the body. The fore wings have twelve veins, except in 

 a few species, which have but eleven. Vein 1 is forked at the 

 base, and all are separate at the origin, except 7 and 8, which are 

 united at the base for a greater or less extent in some species. 



The hind wings are more or less trapezoidal in form, and with- 

 out markings, except in a few Australian species. They have 

 eight veins, except in a few species, where 3 and 4 coalesce and 

 form one. There are three internal veins indicated as la, lb and 

 ic. These arise separately from the base of the wing behind the 

 median vein, and ib is forked at the base. The costal vein arises 

 free from the base of the wing and very near to the base of the 

 subcostal which is so fine near the base as often to appear to be 

 merged into the costal. This position of the costal vein of the 

 hind wing and the fork at the base of ib, readily separates the 

 Tortricids from the Pyralids. 



The subfamilies may be separated by the following table : 



1. Median vein of hind wings hairy above Grapholithinae. 



Median vein of hind wings not hairy above 2. 



2. Vein 2 of the fore wings from near middle of median vein . Tortricinae. 

 Vein 2 of the fore wings from outer third of median vein . Gonchylinae. 



A large majority of the Tortricids fold or roll together the 

 leaves of the plants upon which they feed. Some feed in fruit 

 and seeds; others are borers in stems, and a few are supposed to 

 be gall makers, while one has been shown to be carnivorous. 



There is probably no other family of insects in which a larger 

 proportion of the species is injurious to plants that are of value 

 to man. 



The usual time of flight is from 4 to 7 or 8 in the evening, but 

 they may be " flushed" or beaten from the bushes at other times 

 of the day. A very few come to light or sugar, but not many 

 can be captured by these methods. 



