272 ENTOMOLOGICAL NEWS. [ June, ’14 
It is probable that this louse has an alternate host, as the alate form, 
the second generation, all leave the cottonwoods. 
Our records on this louse in Colorado are as follows: 
Grand Junction, June 16, 1907; Migrant; Recorded by C. P. Gillette; 
Host, Populus candicans. 
Rocky Ford, May 27, 1908; Fundatrix and 2nd generation; Recorded 
by L. C. Bragg; Host, Populus coccinea. 
Denver, June 16, 1911; Fundatrix and alate migrants; Recorded by L. 
C. Bragg; Host, Populus coccinea. 
Fort Collins, June 17, 1913; Fundatrix and alate migrants; Recorded 
by L. C. Bragg; Host, Populus coccinea. 
Longmont, June 17, 1913; Fundatrix and immature young; Recorded 
by Asa C. Maxson; Host, Populus coccinea. 
Fort, Collins, June 21, 1913; Migrants; Recorded by L. C. Bragg; 
Host, Populus coccinea. 
Phyllaphis quercifoliae n. sp. 
In Bulletin 31, page 116 (1895), of the Colorado Experi- 
ment Station, Mr. Cowen gave a brief description of a woolly 
plant louse found upon the under side of the leaves of scrub 
oaks in Colorado, which he thought to be Fitch’s Eriosoma 
querci, but which he placed in the genus Schizoneura. Mr. 
Davis in his paper in EnromorocicaL News, Volume XXII, 
IQII, page 242, accepts Cowen’s reference of the species, hav- 
ing no examples for study himself. 
This is a common louse, which I have often seen on oaks in 
the mountainous sections of Colorado. A rather careful study 
of the material in hand has convinced me that the Colorado 
form is a distinct and new species and not the species describ- 
ed or referred to by Fitch, Thomas, Oestlund and Davis and 
that it is probably distinct from the species recorded by Clarke 
and Davidson found on the live oaks of California. I am, 
therefore, offering the notes and descriptions given below. 
While I am referring this species to the genus Phyllaphis, it 
does not have the short beak, knobbed cauda, or short second 
antennal joint found in P. fagi, the type of the genus, and the 
hind wings have but one transverse vein, and any of these 
characters might be considered of generic rank. 
The specimens here described were taken at Manitou, Colo- 
rado, September 20, 1913, by the writer, on native scrub oak, 
