6 THE CANADIAN ENTOMOLOGIST. 



Hab. — On Quercus, sp. \Valiuit Creek Canyon, near Flagstaff, Ariz. 



Ripersia villosa, n. sp. 



9 in clusters and single in the crotches of twigs of oak. Sac 

 loosely woven of long white wool, oval, about 2 mm. long and i mm. 

 broad. 



9 when removed from sac bright crimson, slightly covered with 

 white powder, skin shiny; about 1.5 mm. long, i mm. broad, tapering 

 anteriorly and quite convex dorsally. When boiled in K. H. O., derm 

 colourless, densely covered with slender hairs. Antennee light brown ; 

 y-jointed. Joint 7 longest. Sometimes joint i is next longest, but joint 2 

 is often longer than i, and in many cases they are subequal ; joint 6 

 usually next, although joint 3 may be longer than 6 ; joint 4 next, often 

 subequal with 5 ; sometimes 3 shortest, sometimes 5 ; 3 and 5 often sub- 

 equal. In fact, the sequence of the joints is (juite variable, as is shown in 

 the following antennal formulae : 



72i(36)(45) 



7(12)6(45)3 



71264(53) 



7(12)64(53) 



Joint I is stouter than any of the others. Each joint with hairs, joint 7 



with several stout hairs. Legs light brown, large and stout; each joint 



furnished with one or more rather long bristles. Femur, 80 x 50 \i. 



Tibia, 70 /x. Tarsus, 50 /x. Claw, 20 \i. Digitules of claw knobbed, 



moderately short and stout. Tarsal digitules long, fine, slightly knobbed 



hairs. Tubercles small and rounded, with long stout bristle. Anal ring 



with six stout hairs. 



Larva when newly hatched, colour light red, rostral loop extending 

 beyond body. 



Hab. — On Qiierctis agrifoHa, at Berkeley, California. 



[This species is probably most nearly allied to Dactylopius Quaint- 

 ancii. Tins., from which it differs in being more distinctly a Ripersia in 

 the general appearance of both the antennas and legs. — J. D. Tinsley.] 



Dactylopius formicarii, n. sp. 



$ small, broadly oval, slightly covered with powder, about 2 mm. long 

 and I mm. broad. Colour yellowish-brown ; when boiled in soda, turns 

 red. Epidemis of dorsum with scattered spinnerets and hairs on thorax ; 

 on abdomen these become more numerous posteriorly, especially the hairs, 

 which are cpiite numerous on the last 4 segments. Ventrally the long 

 slender hairs are quite numerous on all the segments, but especially so on 



