DESCRIPTIONS AND RECORDS OF PHILIPPINE COCCID^ 



By Elizabeth Robinson 



THREE TEXT FIGURES 



DACTYLOPIIN^ f 



Phenacoccus spinosus sp. nov. Fig. la, 16. 



Female thinly covered with white cottony secretion, about 

 3 millimeters long, 2.5 broad, slender fragile filaments about 

 3 millimeters long. Mounted female ovate, 2.5 millimeters long, 

 1.30 broad, light brown. Antennse 9-jointed, measurements in 

 microns: (1) 50, (2) 75, (3) 75-77, (4) 55-60, (5) 62.5, (6) 

 50, (7) 47.5-50, (8) 50-52.5, (9) 72.5-77 (fig. la). 



Legs slender, length of joints in microns are as follows : 



Leg. 



Coxa. 



Tro- 

 chanter 



plus 

 femur. 



Tibia. 



Tarsus. 



Claw. 



Middle ' . 



Microns. 

 100 

 112.5 



Microns. 

 330 

 397 



Microns. 

 150 

 337.5 



Microns. 



82.5 



102.5 



Microns. 

 20-22. 5 

 27.5 



Hind 





Claw with a single denticle; digitules slender, no longer than 

 claw. Six rounded caudal lobes bearing hairs about 200 microns 

 long. Six spiny hairs of anal ring, 125 to 138 microns long. 

 Around the body, and equidistant between ventral and dorsal 

 lines, a series of circular areas composed of pores and truncate 

 spines. 



Larva ovate, yellow, 1.50 millimeters long, 0.75 broad. Fewer 

 patches of pores and truncate spines. Antennae 6- or 7- jointed. 

 Entire length of 6-jointed antenna, 235.5 microns; of 7-jointed 

 antenna, 337.5 microns. Length of middle leg in microns : Coxa, 

 50; trochanter plus femur, 155 to 160.5; tibia, 100 to 110; tarsus, 

 80; claw, 18 to 22.5 (fig. 1&). 



Luzon, Laguna, Paete (R. C. McGregor), March, 1917, on 

 Ficus nota (Blanco) Merr. 



Many of the characters resemble those of Phenacoccus azaleae 

 Kuwana and Pseudococcus nitidus Brain. The large legs and 

 and antennse of this species diff'erentiate it from both. 



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