104 



ENTOMOLOGICAL NEWS. 



Apr., '19 



Phylloxera salicola Perg.? (Text figs. A, C.) 



1904. Phylloxera salicola Pergande, Proc. Davenport Acad. Sci., Vol. 



9, pp. 267-69, pi. XXI, figs. 161-168. 

 1015. Phylloxera salicola Perg.; Davidson, Jn. Ec. Ent., Vol. 8, p. 



419, pi. 25. 



In life. Exposed upon the bark of the host, chiefly on the 

 smaller twigs. Entirely covered with wooly, white secretion. 



Apterous female. Length (flattened on slide) .9 mm. or less. Shape 

 regularly oval, slightly more pointed posteriorly. Dorsum with numer- 

 ous areas of pores, these arranged in three more or less definite, longi- 

 tudinal rows. Each cluster of pores is grouped around a small spine, 



A, C. — Phylloxera salicola Pergatide (?) ; apterous female and antenna of same. Speci- 



men from Populus trichocarpa. 



B, ly.— Phylloxera stanfordiana n. sp.; apterous female and antenna of same. All figures 



drawn to same scale. 



the clusters on the head being largest, the others becoming progress- 

 ively smaller posteriorly. Derm otherwise smooth, not at all roughened 

 or beset with fine points. Last two segments each with a small, trans- 

 verse, chitinized area. Ventrally there is a small cluster of pores 

 behind each of the first pair of spiracles. Antennae short, the third 

 segment about as long as the other two combined, annulations few and 



