74 NEW YORK STATE MUSEUM 



long, very fine hairs. Rostral groove uninterrupted, broad at 

 mesosternum and metasternum, angularly closed in front; rostrum 

 reaching metasternum. Abdomen of female broadly rounded at 

 apex, in the male more elongate, the sides of genital segment sinu- 

 ated ; at tip two strong claspers. Length 3.6 millimeters ; width 

 of each elytron across widest part, 1.4 millimeters. 



Last nymphal stage. Body elongate elliptical, yellowish white, 

 pellucid, some brownish spots on inner side of the wing pads 

 basally and at apex; abdominal segments on the middle . and 

 all the appendages or processes toward the tip brownish. Pro- 

 notum transverse, lateral margins rounded ; hood, median carina, 

 and triangular posterior part of pronotum already indicated. 

 Antennae as long as the whole body, finely pilose, yellowish, tip 

 of the two terminal joints brownish. Wing pads reaching the third 

 abdominal segment. Head with five long processes, of which two 

 at base of head are most prominent and bent forward ; two smaller 

 ones on a little elevation of median carina near together ; very large 

 processes on each lateral margin of pronotum ; two on the meso- 

 notum and a single one at middle of the first, third, fourth, and 

 sixth dorsal segments of abdomen ; another on each wing pad ; 

 the processes on the lateral margins of abdomen are slightly 

 smaller. These appendages or processes are peculiarly shaped, 

 cylindrical, narrowing toward the apex, the edge of tip armed with 

 two or three small sharp teeth ; there are also some pores and short 

 bristles on the surface of these processes visible by high power 

 magnification. Length, 2 millimeters. 



Egg. This, according to Heidemann, is cylindric, oval, yellowish 

 white and about .4 millimeters long. 



Life history. This species, according to Mr Heidemann. win- 

 ters in eggs deposited in the epidermis of the leaves, mostly at the 

 sides of the main rib. The eggs hatch probably early in, May in this 

 latitude, the recently emerged young being whitish, somewhat 

 transparent and without spines. Later the color becomes green- 

 ish white and the antennae extend nearly to the end of the ab- 

 domen. In about four days the skin is shed and lateral processes 

 begin to appear which become more apparent in subsequent 

 molts. The partly grown nymphs may be observed on the under- 

 side of the leaves from then to early July at which time the 

 insects become full grown. 



Food plants and distribution. This species is recorded by 

 Heidemann as quite abundant on Mountain Laurel, K a 1 m i a 

 1 a t i f o 1 i a and on the Great Laurel, Rhododendron 

 maximum, and occurs along the Atlantic slope from North 

 Carolina northward at least to New York State. 



