320 



THB CANADIAN ENTOMOLOGIST. 



I and 2 are often subequal, although in many cases 2 is appreciably 

 longer, and 3 may be longer than i ; 5 is most usually longer than 7 ; 4 

 and 6 are shortest, sometimes one and sometimes the other. Two of 

 the most common formui?e are 

 8(12)35746 and 82315764. (See 

 figure 21.) Legs reddish, medium 

 size. Femur, 215 //- long, 85 //. wide, 

 with long, rather slender hairs. 



Tibia 215 /a long, with long, 

 rather slender hairs ; tarsus 112 /a 

 long ; claw t^t, ji long ; digitules of 

 tarsus 40 /'. long, knobbed ; digitules 

 of claw long, slender, knobbed. 



Anal lobes bearing one large 

 long hair (250 /'- long), and one Fig. 21. 



smaller hair. The usual group of spinnerets and spines. The spines 

 quite stout. 



Anal ring with the usual 6 hairs, which are quite large (140 /a long). 



Boiled in potash the insects turn a very dark bluish green, almost 

 black ; if they are now treated with acid they turn red. The colouring 

 matter contained in this insect has been found in but few other Coccids ; 

 most Coccids turning a red, of some shade, when treated with potash. 



Ovisac loose and fluffy, white, not covering the female, but contain- 

 ing the eggs, which are purplish. 



Hab. — On Azalea in Japanese nursery, San Jose, Cal. Collected by 

 Mr. Edward M. Ehrhorn ; Sept., 1898. 



Remarks. — This species is very closely allied to D. pandani, Ckll., 

 especially in the characters of the antennae, anal lobes and ring, and the 

 hairs on the epidermis. It differs, however, in colour, secretion on 

 margin, and colour in potash. Being found in a Japanese nursery, it is 

 almost impossible to say from whence it came, but it may possibly be 

 Japanese. 



