54 INSECUTOR INvSCITIyE" ME'NSTRUUS- 



with white tarsi, dark brown at the tips of the joints, middle 

 tibiae tufted; hind legs with tarsi and tibise dark yellow gray- 

 shaded with brown, femora 3'ellow at base. Fore wings dark 

 purple, with two, tvidely separated, shining golden spots, on 

 the costal margin ; the first spot extending to the fold, the 

 costal edge of the triangle reaches from the basal fourth to 

 nearly the middle of the costa; at a distance about as great 

 as the width of the wing from the first spot is the second costal 

 spot, very small and nearly semicircular in form ; the cilia 

 are dark gray, with two distinct black lines extending around 

 the apex and well into the dorsal cilia. Hind wings dark 

 smoky gfay; cilia paler. Expanse, 10 mm. 



Type, Cat. No. 19326, U. S. Nat. Mus. 



The above description is; taken from one of a series of about 

 twenty-five specimens, reared by the writer at East River, 

 Connecticut, from mines and rolls in the leaves of Cornus 

 stolonifera Michx. The material was collected about the mid- 

 dle of July and adults emerged the last week in July and the 

 first week in August. 



The mifie is short and winding, in the lower side of the leaf, 

 ending in a somewhat elongated blotch about half an inch 

 long, placed usually between and at the junction of two of 

 the ribs or veins. After leaving the mine the larva rolls the 

 leaf downward, from one side, into a cylindrical roll. The 

 cocoon is of the usual boat-shaped form, and is made within 

 the roll, near the first fold in the leaf. 



The work of this insect closely resembles that of Bxartema 

 punctanum Wlsm., but the larva of the latter usually eats 

 through the leaf forming the roll, in a number of places, while 

 the gracilaria larva eats only one side of the leaf. 



A series of ten specimens was also obtained from Cornus 

 alternifolia L. In habits and appearance these correspond so 

 closely to those reared from Cornus stolonifera that they are 

 believed to represent the same species. Three specimens 

 reared by A. Busck from Cornus species at Washington, D. C, 

 April 2, 1900, are also included under this species. 



This insect may be distinguished from its nearer relatives 



