OF NORTH AMERICA. 7 



HahUai. — Northern Atlantic States, (Coll. generally.) California. 

 (Coll. Boisduval). 



This well known species is abundant in the Northern Atlantic 

 States, and Boisduval states that he has received the pupaj from 

 California. The larva feeds on the grape ; the imago appears in the 

 latter part of I\Iay. The following notes on the larva and its habits are 

 extracted from " Harris's Entomological Correspondence," page 285. 



Larva. — "Very young specimens not more than three-tenths of an 

 inch long, were destitute of the black transverse lines found in older 

 specimens ; they were whitish, tinged with dull orange red on the 

 middle of each segment, and with numerous, irregular, brownish, 

 transverse lines between. The dorsal series of tubercles, particularly 

 on the fourth, fifth, sixth and eleventh segments were very prominent, 

 acuminated and brownish black; the others were brown as were also 

 the feet. The head and top of the first and last rings were very 

 pale red, and the dots were obsolete or invisible on these parts. 

 The side of the eleventh segment was distinctly marked with a 

 white, irregularly shaped spot. The hairs on the tubercles were 

 distinct, but colorless. As the larva3 become older and larger, their 

 colors become more intense and with stronger contrasts. The pale 

 orange bands become deep orange ; the transverse brownish lines and 

 the tubercles become deep black ; the head, etc., become darker 

 colored, and the black dots upon it are visible to the naked eye.'" 



Full grown larva. " The full grown larva have a decided blueish 

 tinge, entirely owing, however, to an optical phenomenon from the con ■ 

 trast of the white with the transverse black lines. The head is of pale 

 dirty orange or rusty yellow with about eight black dots on each side ; 

 a semi-circular plate on top of the first segment and the anal valves 

 are pale orange dotted with black. There is a transverse series of 

 black dots on the second and third segments, without any orange 

 band. Each of the other segments is transversely banded with orange 

 and dotted with black, the dots being in two alternate rows, and all of 

 them emitting distinct, long whitish hairs. Between each of the bands 

 there are six slender, continuous, black, transverse lines. The points 

 are also connected by interrupted black lines. Legs at base, orange, 

 black externally and at tip, except the anal pair which are orange 

 dotted with black. The large, white, lateral spot is common to the 

 side of the tenth and eleventh segments. The other lateral white spots 

 are situated immediately behind the bands on the fourth, fifth, sixth, 

 seventh, eighth and ninth segments, the anterior spots being largest ; 



