ZooL.-VoL. III.] KUWANA-COCCID.^ OF JAPAN. 47 



tibia; tibia more than twice as long as tarsus; inner margin of tibia and tarsus 

 bearing several strong spiny hairs; all segments with many hairs; claw large, 

 with one to four spine-like digitules on its inner margin. Anal ring hairless. 



Found by the author on the trunk of Qtierctis sp. in the 

 grounds of Nishigahara Agricultural Experiment Station, 

 Tokyo. 



This species is related to Monophlebus burmeisteri West- 

 wood, but may be readily distinguished from the latter by 

 its great size, legs much thicker and stouter, femur com- 

 paratively short. 



Type in the Entomological Collection of Leland Stan- 

 ford Jr. University, and co-types in the author's collection. 



Genus Icerya Sign. 



3. Icerya sp. 



Two specimens were obtained by the author in Mr. 

 Yafune's orange orchard, Arita-gun, Yakayamaken. Not 

 being in a good condition the species could not be 

 determined. 



Subfamily MARGARODIN^. 

 Tribe Xylococcini. 

 Sasakia, gen. nov. 



Adult female with nine-segmented antennae; body distinctly segmented, 

 mouth-parts wanting in the adult stage; no digitule on claw nor on tarsus; 

 anal tube absent; enclosed in a cottony secretion. 



Larva with six-segmented antennae; anal tube wanting. 



4. Sasakia quercus, sp. nov. 

 Plate VII, Figs. 4-8. 



Adult Female.— The adult female is usually found in crevices on bark, in 

 a white cottony secretion. Color red; antennae and legs reddish brown. 

 Length 1.85 mm., width about i mm.; subelliptical, narrower toward ante- 

 rior. Antennae close to each other, very stout, nine-segmented, constricted 

 at base of each segment, about .5 mm. long; formula, i, 9, (2, 3, 4, 5, 6, 7, 8); 

 segment i very stout and long; segments 2 to 8 subequal; short hairs on 

 each segment. Legs subequal, very stout; coxa stout, as wide as long. 



