1062 WattTeR H. WELLHOUSE 
hawthorns. They hibernate among the fallen leaves under the trees, 
and hundreds of them were present under Crataegus punctata trees in 
March, 1919. During warm days in winter they hop about over the 
leaves. Some individuals have pale pink stripes, and others reddish brown. 
Adults are found feeding on the trees in June and October. 
pallidus Fb., [diocerus 
A single adult of Idzocerus pallidus was taken on June 23, on Crataegus 
punctata. It was 6 millimeters long, and was similar in size and shape 
to I. fitcht but was almost white. 
provanchert VanD., Idvocerus 
The adults of Idiocerus provancheri are 53 millimeters long, and are 
brown or blackish with an elongate yellow spot on the base of the inner 
margin of the wing. They are common on the leaves of native hawthorns 
during June and July. Nymphs in the rearing cages hatched from eggs 
in Crataegus punctata twigs just as the buds were expanding in April. 
They became adult in three weeks. 
querct Fitch, Empoa 
The small, whitish leaf hoppers known as Hmpoa querci are very 
abundant on both native and imported hawthorns. The nymphs may be 
found on the under side of the leaves in late June and July, and again in 
September. The adults likewise occur on the under side of the foliage in 
June, August, and late September or early October. They hibernate 
among the fallen leaves and become active on warm winter days. They ° 
are 3 millimeters long, and are pale yellowish white in color. 
seminudus Say, Hutettrx 
The adults of Hutetttx seminudus are 44 millimeters long, rather stout, 
and white with a light brown band across the middle of the wings. They 
are rather common on Crataegus punctata and C. tomentosa foliage from 
mid-July to September. 
suturalis Fb., [diocerus 
The adults of [dzocerus suturalis are 53 millimeters long, and are pallid 
except for the black inner margin of the wings. ‘They are found on 
native Crataegus in June and July, but are rare. 
vanduzer Gill., Hupteryx 
The adults of Hupteryx vanduzei are 24 millimeters long, and are slender 
with a pointed head. The head, the thorax, and the apical part of the 
wings are brown, and the central part of the body and of the wings is 
greenish yellow. One nymph was taken on Crataegus punctata foliage, 
and the adult emerged on August 15. The species is rarely found. 
