1002 WALTER 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., Idiocerus 



A single adult of Idiocerus pallidus was taken on June 23, on Crataegus 

 punctata. It was 6 millimeters long, and was similar in size and shape 

 to /. fitchi but was almost white. 



provancheri VanD., Idiocerus 



The adults of Idiocerus provancheri are 5J 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. 



querci Fitch, Empoa 



The small, whitish leaf hoppers known as Empoa 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, Eutettix 



The adults of Eutettix seminudus are 4J 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., Idiocerus 



The adults of Idiocerus suturalis are 5J 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. 



vanduzei Gill., Eupteryx 



The adults of Eupteryx vanduzei are 2J 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. 



