330 THE CANADIAN ENTOMOLOGIST. 



intervals. Derm, after boiling in K. O, H., becomes colourless, with 

 numerous round gland-orifices and small brown dots. Antennae 6-jointed, 

 indistinctly segmented, joint 3 apparently longest. 



Larva reddish-puri)le, slightly covered with secretion. Derm, after 

 boiling in K. O. H., colourless. Legs and antennje and caudal tubercles 

 yellowish-brown. Antennae 6-jointed. Joint 3 longest, joint 4 shortest, 

 joints 2 and 5 subecpial. Formula approximately 3, 6, i (2, 5), 4. Body 

 elongate oval, about twice as long as broad. Margin with short, stout 

 spines. Caudal tubercles rounded and very prominent, with three stout 

 spines. Caudal setae long and stout. Legs short and stout. Tibia two- 

 thirds of tarsus. Tarsus one-quarter shorter than femur. Claw long and 

 slender, slightly curved. Digitules long, fine, knobbed hairs. Anal ring 

 with six long stout hairs, reaching to end of tubeicle, 



Male sac of snow-white felt, elongate oval, convex above, about i}^ 

 mm. long and }^ mm. broad ; sometimes flakes of yellow wax are found 

 on sac. 



Male is very small, abdomen dark red, thorax and head black, wings 

 iridescent. Stile well developed. Antennae 10-jointed, joints sausage- 

 shaped, very hairy. Joint i shortest and stoutest, joints 5, 6, 7 longest 

 and subequal. Formula : (5, 6, 7), 2, 4, 8, 9, 10, 3, i. 



Legs long and slender. Femur stout, shorter than tibia. Tibia with 

 stout spines. Tarsus about half of tibia. Claw long and slender, and well 

 curved. Digitules fine hairs. 



Hah. — On Quercus chrysolepia^ Stevens Creek Canyon, Mountain 

 View, California. Named in honour of my friend, Prof Volney Rattan, 

 of San Jose, Cal., for whose kind assistance in botany I am under great 

 obligation. 



Eriococcus bahue, sp. n. — Adult female enclosed in a closely-felted 

 sac, the exterior of which is cream coloured, the interior snow-white. Sac 

 about 3 mm. long and 1)4 nim. broad, convex above, more or less 

 flattened below. Eggs reddish-purple. 



Body of female tapering, plump, shiny, about 2^ mm. long and 



I mm. broad. Segmentation distinct. Colour dark crimson-purple. Legs 



and antennae light brown. Margin with short white filaments. When 



boiled in K. O. H., derm is colourless, antennae, legs and mouth-parts 



remaining light brown. Margin with a row of stout conical spines. 



Dorsal surface covered with small stout spines. Antennae 7-jointed, quite 

 hairy. Joint 3 longest, joints 2, 5, 6 subequal and shortest. Formula: 3, 



4 (i, 7). (2, 5i '')• 



