334 THE CANADIAN ENTOMOLOGIST. 



Habitat. — On Juniperus virginiana^ Ashforks, Arizona. 



Ripersiella Kelloggi^ Elirh. and Ckll., sj). n. — Proc. Biolog. Society 



of Washington, Vol. 14, Aug. 9, 1901. Adult female generally attached 



to the roots of grass, producing a small quantity of white cottony secretion, 



which generally incases the body. Colour creamy-white, about y^z mm. 



long and i mm. broad, oval, sometimes pyriform, shiny. Segmentation 



not very distinct. When placed in K. O. H. derm turns yellow, but 



becomes transparent, so that it is difficult to find it on the slide. Antenn?e 



very close together, about 15/x, 5-jointed, quite hairy. Joint 5 longest, 



longer than 2 + 3 + 4, which are subequal. Formula: 5, i (2, 3, 4). 

 Legs very short and stout. Femur very stout, about as long as tibia plus 

 tarsus. Tibia about as long as tarsus, with two stout bristles, about 8ft. 

 Tarsus with stout bristle. Claw long and slender. Digitules fine hairs. 

 Caudal tubercles inconspicuous, with short fine bristles. Anal ring very 

 small, with six short fine hairs. 



Habitat. — On the roots of Bunch grass. Stevens Creek, Mountain 

 View, Cal. 



In the Proceedings of the Biolog. Soc. of Washington, Aug. 9, 1901, 

 Mr. Cockerell says : "This species was found by Mr. Ehrhorn on the 

 roots oi Bwich grass at Mountain View, Cal., in December, 1898, but no 

 description has yet been published. It is easily recognized by the 

 characters mentioned above. The length of the last antennal joint is 

 about 30/x. The mouth-parts are ordinary, the labium not elongated." 



This species was sent to Prof. Tinsley, when he established the new 

 genus Ripersiella, and I had exi)ected him to describe it, but after a long 

 silence my slices and notes were returned to me. In the above descrip- 

 tion I have added a few more important characters, which' will aid in the 

 determination. 



Piilvinaria pluchece., sp. n. — Female scales dark brown, about as 

 broad as long, varying from 3 to 4 mm. Ovisac snow-white, ribbed 

 longitudinally and varying in shape and length, according to position on 

 twig, from 3 mm. broad to 5 or 7 mm. long. After boiling in K. O. H. 

 derm is colourless. Marginal spines straight, slender and sharp, and 

 hard to detect on slide. Anal plates heart-shaped, with three slender 

 spines at tip and two bristles on outer margin. Anal ring with long stout 

 hairs. Antenna? with a few slender hairs, quite stout and 8-jointed. The 



