146 



The Philip2nne Journal of Science 



1918 



Pseudococcus virgatus (Cockerell). 



Luzon, Manila, Malate (McGregor), 

 April, 1917, on Hibiscus rosa-sinensis 

 Linn. : Rizal Province, Fort William 

 McKinley {McGregor), April, 1917, on 

 Bridelm stipularis (Linn.) Blume. 



DIASPIN^ 



Hemichionaspis aspidistrae (Signoret). 



Luzon, Laguna, Paete (McGregor), 

 March, 1917, on the mature fruit of 

 Areca catechu Linn. 



Aspidiotus cydoniae Comstock. 



Luzon. Manila (McGregor). 

 1917, on Sainanea saman Merr, 



April, 



■"IG. 1. Phenacoccus spinosus sp. 

 nov., X 175 ; a, antenna of 

 adult female ; b, antenna of 

 larva. 



Pseudaonidia manilensis sp. nov. Fig. 2. 



Female scale circular to subcircular, 

 convex. 1.50 to 1.75 millimeters in 

 diameter, dark brown ; exuviae lateral 

 to subcentral, yellowish brown. 



Adult female oval ; caudal margin with 

 median lobes heavy, notched on each 

 side, second and third pairs of lobes 



narrow, transparent, variable in size and 

 shape; fourth lobes represented by small 

 rounded projections followed by a series 

 of rounded projections and Spines ; biden- 

 tate or tridentate plates between the lobes 

 (fig. 2) . Circumgenital glands : Anterior 

 laterals of 23 to 25 orifices, posterior 

 laterals 8 to 12. Many tubular spinnerets. 

 On dorsal surface an extensive reticulated 

 patch, oval in outline, composed of irregular spaces. 



In some specimens the lateral lobes resemble those of Pseudao- 

 nidia cnrculiginis Green, but that species lacks the tessellated 

 area. The form of the median lobes is different in Pseudaonidia 

 trilobitiformis (Green). 



Luzon, Manila (McGregor) , April, 1917, on Samanea saman 

 Merr. 



Fig. 2. Pseudaonidia viani- 

 lensis sp. nov.. caudal mar- 

 gin of female, enlarged. 



