INSECT NOTES FOR 19IO. I9 



Genitalia. Female. The genital segment ends in an obtuse 

 point. Fig. 26 represents a slightly dorso-lateral view. The 

 supragenital plate has no long setae at the tip but some very 

 small setulae. A circum-anal area of wax-glands is present at 

 the cephalic portion of this plate. The deep hollow subgenital 

 plate is pointed at the apex. There are num^erous stout setae 

 scattered over the surface but none at the distal tip. 



Male. The abdomen of the male is strongly constricted just 

 cephalad the genital segment. The supragenital plate consists 

 of an erect portion ending in a circular opening, — the anus. 

 Extending nearly from the base but not quite to the tips of this 

 portion are two broad lateral processes. These processes are 

 concave on the dorsal line and bluntly rounded at the tip. They 

 are very thickly set with setae. A row of very long, strong 

 lash-like setae fringe the concave line of these processes and are 

 thickest at the tip. The forceps of the subgenital plate are 

 strong structured enlarged and blunt at the end, and consider- 

 ably constricted about midway their length. Fig. 27 shows this 

 segment. 



The nymphs of this species were found in all stages upon the 

 leaves of Amelanchier canadensis. They were collected by Mr. 

 William C. Woods, July 6 to July 27, 1910. They fed -upon the 

 ventral surface of the leaves where their presence was readily 

 detected on account of the beautiful white floss-like wax fila- 

 ments that curled softly up from the margin of their bodies. 

 These wax filaments are secreted by wax glands which extend 

 in a single marginal row in the earlier stages but which in the 

 later instars occur both on the margin and for a considerable 

 distance mesad on the dorsal surface of the body. A crescent 

 shaped area of wax glands surrounds the anus in all the nymphal 

 stages. 



Nymph. First instar. Fig. 30. The marginal wax tubes are 

 cylindrical and are arranged 8 on each side of the head cephalad 

 the eye, one on each thoracic segment at the caudal angle, and 

 about 12 along each side of the abdomen. 



Second instar. Fig. 31. The marginal wax tubes are cylin- 

 drical and are arranged 10-13 on each lobe of the head cephalad 

 the eye; a single prothoracic waxtube situated caudad the eye, 

 7 along the mesothorax, 3-4 on the metathorax, and about 18 

 along each side of the abdomen. 



