1974] 
Bailey — Stephanitis 
535 
numbers. One grows on the north corner of our auditorium and the 
other on the west side of the same building. The latter grows beside 
a hybrid Rhododendron that also showed considerable leaf discolora- 
tion, especially on leaves of the previous year. This year’s growth 
was only thinly specked with fine whitish dots on the upper surface 
and no lace bugs were located on either the older or the newer 
foliage of this plant. 
On October 3rd I extended the search and inspected Pieris japonica 
specimens in the front foundation plantings of five college owned 
houses situated on the opposite sides of the two streets that parallel 
the east and the west sides of the main campus. A sixth house is on 
a road beyond the tennis courts at the southern edge of the college 
property and about a half a mile from the front of the campus where 
specimens were first found. All of the plants observed showed some 
evidence of injury and several were heavily infested. In spite of 
light frosts on at least two nights recently, temperatures below 40°F 
for another two nights, and only in the low fifties during the two 
consecutive days, adults (some teneral) and nymphs of Stephanitis 
were numerous and active on some of these Pieris on October 3rd 
and 4th. 
On the 4th a collection was taken from a Pieris japonica by the 
northeast entrance to the campus. This plant had numerous nymphs 
and some adults on the leaves. At least four nymphal instars are 
represented in this one late season collection. The smallest nymph, 
without apparent spines, was 0.7 mm. long. Others measured 1.2 
mm., 1.8 mm. and 2.4 mm. in length and these all had prominent 
spines on the dorsal side of head, thorax, and abdomen Three adults 
found with them measured from 3.9 to 4.2 mm. 
Although many leaves were examined (several with the aid of a 
stereoscopic microscope), no evidence of eggs was discovered. There- 
fore, the late occurrence of early nymphal instars and of teneral 
adults strongly indicates that S. takeyai may over-winter in these 
stages, contrary to my earlier suggestion (1951). Obviously this 
point needs clarification. 2 
On October 26th, specimens of Pieris japonica showing character- 
istic discoloration were seen in Haverhill at least two miles from the 
2 While this paper was in press, I received a copy of Dr. Dennis Dunbar’s 
recent (1974) article on this tingid, in which mention is made of the gen- 
eral occurrence of takeyai in southern New England, without giving specific 
localities in Massachusetts. The same paper provides a full account of the 
life history in Connecticut and indicates the species lays eggs that over- 
winter in the Pieris leaves there. 
