THE CANADIAN ENTOMOLOGIST. 315 



y^ tibia. Claw very stout and curved, with tooth. Digitules very long 

 fine hairs. 



Immature $ much Hke ?, smaller and lighter colour, about 2^ 

 mm. long, i }4 mm. broad. Legs not as stout. Antennae 7-jointed. 

 Formula: 372(1456). 



Sac of $ snow white, more or less irregular in shape, no distinct 

 carinse, about 4 mm. long, 2 mm. broad. 



Pupa.—\^\\Q\-\ removed from sac, cylindrical, shiny. Outline of 

 antennae, wing-pads and segmentation distinct. Body more or less 

 pitted. Colour greenish-brown, about 2^ mm. long, i^ mm. broad. 

 Turns dark red when placed in K. H. O. 



Adult ^ measuring, without setre, about 3 mm. long and i mm. 

 broad. Setae are about twice as long as body, of a snow-white colour. 

 Head and thorax dark brown, abdomen greenish-yellow, slightly covered 

 with white secretion. Head and thorax with numerous stout hairs, 

 abdomen thickly covered with stout hairs. Antennae very long, stout and 

 very bristly, lo-jointed. Joint 2 shortest, very little shorter than i. 

 These two joints are about as broad as long, the rest of the joints are 

 sausage-shaped. Joints 3, 4 and 5 subequal and longest. Formula : 

 (3.4.5)6.7.8.9.10.1.2. Legs very long and stout and very hairy. Coxa 

 and trochanter short, latter with very long stout spine. Femur one-fifth 

 shorter than tibia, tarsus ^ of femur. Claw stout, curved, with tooth 

 and double spur. Digitules stout hairs extending as far as tooth. 

 Tarsal digitules fine hairs extending to end of claw. Wings dusky, 

 pubescent, each about 2}^ nmi. long by i mm. broad. Halteres com- 

 paratively small, with two stout, well-curved hooks. Style long, stout 

 and conical, forming a blunt hook at caudal end. The last abdominal 

 segment has two groups of round gland openings ; on the cephalic 

 margin of each two very long stout spines arise, which run parallel 

 caudad. There are also numerous stout hairs surrounding the glands. 



Bab.— On Bahia, sp., in foothills near Mayfield, Santa Clara 

 County, Cal. May 7th, 1899. 

 Dadylopius quercus, n. sp. (Plate 7, fig. 6.) 



$ slightly covered with white secretion, about 2^ mm. long and 

 i}i mm. broad, tapering at both ends. Colour of body greenish-brown, 

 concealed more or less by secretion. Segmentation very distinct. Each 

 segment bears a white filament on the margin. Caudal seta? about }i as 

 long as body, white and quite stout. Antennae and legs dark brown. 



