40 



The Philippine Journal of Science 



1917 



median lobes prominent, almost contiguous, rounded apically 

 with a deep notch on the outer edges, laterad of these is a spine- 

 like plate, then a pointed projection ; two lobules of second lobe 

 shaped like the blade of an ax, also followed by a spinelike plate 

 and a pointed projection; remainder of margin serrate with a 

 few spinelike plates (Plate VI, fig. 13). Circumgenital glands 

 with median group of 4 orifices, anterior laterals of 10, posterior 

 laterals of 9 to 11. 



Male scale about 0.5 millimeter long, parallel-sided, strongly 

 tricarinate, brown (Plate V, fig. 18) . A specimen of P. siphono- 

 dontis has been determined in which the male scale is white. It 

 might be possible to have a male scale with a white variety. 



Luzon, Laguna, Los Banos {Baker), on Celtis philippinensis, 

 Sandoricwm koetjape, and Siphonodon celastrineus. 



Pinnaspis buxi (Bouche). 



Pinnaspis buxi (Bouche) Fernald, Cat. Coccidae of the World (1903), 

 242; CocKEEELL and Robinson, Bull. Am. Mus. Nat. Hist. (1914), 

 33, 329. 



Female scale elongate, only slightly broadened posteriorly, 

 often curved, 2 to 2.5 millimeters long, light brown, exuviae 

 somewhat lighter. Adult female oval; median lobes of caudal 

 margin with three terminal notches, sides parallel and almost 

 contiguous, followed by a spine and a narrow glandular process, 

 second lobe with the first lobule similar to the median lobes, 

 second lobule rounded, followed by a glandular process and a 

 spinelike plate (Plate VI, fig. 14). Circumgenital glands with 

 anterior laterals of 9 to 10 orifices, posterior laterals of 10 to 12. 



Luzon, Laguna, Los Banos (Baker), on Homalonema philip- 

 pinensis. 



HOST INDEX 



Achras sapota Linn. 



Aspidiotits cydonix var. greenii 

 Ckll. 

 Aleurites moluccana (Linn.) Willd. 



Aspidiotus translucens Ckll. 

 Anona muricata Linn. 



Saissetia hemisphasrica (Targ.). 

 Anona squamosa Linn. 



Aspidiotus translucens Ckll. 



Coccus elongatus (Sign.). 



Pseudococcus virgatv^ (Ckll.). 

 Antidesma bunius (Linn.) Spreng. 



Coccus viridis (Green). 



Pulvinaria psidii Mask. 

 Antigonon leptopus Hook, and Arn. 



Pulvinaria tyleri Ckll. 



Arachis hypogaea Linn. 



Pseudococcus virgatus (Ckll.). 

 Arenga saccharifera Labill. 



Chrysomphalus aurantii (Mask.) . 



Chi-ysomphalu^ rossi (Mask.). 

 Artocarpus sp. 



Chrysotnphalus aonidum (Linn.). 



Chrysomphalus aurantii (Mask.). 



Pseudaonidia trilobitiformis 



(Green). 

 Asplenium nidus Linn. 



Coccus diversipes Ckll. 

 Astronia sp. 



Chrysomphalus aurantii (Mask.). 

 Blumea balsamifera (Linn.) DC. 



Aspidiotus cydonix Comst. 



