424 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 6 



Phyllocoptes quinquilobus sp. nov. The body is of medium size. The posterior 

 margin of the thoracic shield is five lobed. The dorsal striae are 35 in number and 

 smooth. The ventral striae are 68 in number and are finely punctuated. The setae 

 are all present. The legs are of medium length and slender. The claw is knobbed 

 and somewhat longer than the feathered hair which is 4-rayed. Length of females, 

 170 microns; length of males, 150 microns. 



Described from individuals found among pinkish erineum galls on 

 the under surfaces of leaves of the red maple, Acer rubrum L. 



Phyllocoptes splendidm sp* nov. The body is very large and the margins are 

 strongly curved. The thoracic shield is very large, with the lateral margins con- 

 verging abruptly forward. The dorsal striae are about 60 in number and coarsely 

 punctuated. The ventrum is swollen and the striae, which are 85 or 86 in number, 

 are finely punctuated. The accessory setae are wanting. The legs are long and 

 slender. The claw is truncate and the feathered hair is 5-rayed. Length of females, 

 220 microns; length of males, 216 microns. 



Described from individuals found associated with E. negundi on 

 leaves of the black maple, Acer negundo L. 



Phyllocoptes trilobis sp. nov. The body is long and tapering with a large tri- 

 angular thoracic shield, the posterior margin of which has three broad lobes. The 

 dorsal striae are 23 in number. The ventrum has 68 finely punctuated striae. The 

 accessory setae are wanting. The legs are long and stout. The claw is knobbed 

 and much longer than the feathered hair which is 4-rayed. Length of females, 

 200 microns; length of males, 180 microns. 



Described from individuals found on leaves of the Norway maple, 

 Acer platanoides L. 



Phyllocoptes variabilis sp. nov. The body is of medium size, broadest behind 

 the shield and gently acuminate to anal lobes. The thoracic shield is large, tri- 

 angular and projects bluntly above the rostrum. The dorsal striae are about 32 in 

 number and smooth. The ventral striae are 62 in number and finely punctuated 

 along the posterior margin. The setae are all present. The legs are of medium 

 size. The claw is knobbed and somewhat longer than the feathered hair which 

 is 4-rayed. Length of females, 180 microns; length of males, 150 microns. 



Described from individuals found among red erineum galls on the 

 upper surfaces of leaves of the sugar maple, Acer saccharum L. 



An Eriococcus on Eriogonum. On July 14, Mr. E. Bethel foimd a species of 

 Eriogonum at Lake Eldora, Colorado, swarming with a small mealy-bug, and sent 

 a quantity to me alive. On examination the species proves to be Eriococcus borealis 

 Ckll., having the characteristic antennae (7-jointed in this material), denticle on claw, 

 etc. In some cases the tarsus is as long as the tibia. The living insects, prior to 

 the formation of the sac, are very pale creamy white, with the sides of the body 

 conspicuously hairy. T. D. A. Cockereli.. 



