ZooL.-VoL. III.] KUWANA-COCCIDAi OF JAPAN. 



53 



When boiled in KOH the color is purple. Antenna eight-segmented, 

 .5 mm. long; segment 8 longest; 3 next in length, but not much longer than 

 2; segment 8 bearing many hairs; the others a few; formulae:— 



8, 3, I, 2, 5, 6, 7, 4. 

 8 (3, 2) I, 7, 5, 6, 4. 

 8, 2 (3, i) 5, 4, 7, 6. 

 8 (2, 3) I, 5, 4, 6, 7- 

 8 (2, 3, i) 5, 6, 4, 7. 

 8 (2, I) 3, 5, 4 (6, 7)- 



The measurements of the antennal segments vary as follows:— 



Mouth-parts large; rostral loop long. Spiracles large. Legs normal; coxa 

 longer than wide, with several spines; trochanter as usual, bearing one long 

 and a few short hairs; femur thick, outer margin convex, with many scat- 

 tered hairs; tibia as long as femur, tapering posteriorly, with many hairs; 

 tarsus about one-third as long as tibia, tapering posteriorly, with many hairs; 

 tarsal digitules fine and knobbed, digitules on claw short, gradually widening 

 into large knobs. Dorsum with fine scattered hairs and round pits. Poste- 

 rior end of body furnished with lobes, each bearing a fine long hair and two 

 stout spines. Anal ring round, prominent, with six hairs. 



Found at Akabane by the author in cracks or crevices of 

 trunk of mulberry-tree (Kuwa), near the ground, and pro- 

 tected by a covering made by ants. The ants and scales 

 associate in the chamber, being mutually benefited. It was 

 also found in the crevices of the trunk of a kind of maple 

 in the grounds of the Nishigahara Agricultural Experiment 

 Station, Tokyo. 



This species is related to Dactylofius theobromcs Dougl. 

 The two species may be separated by the following table: — 



