22 The Philippine Journal of Science 1917 



Phenacaspis pellucida sp. nov. 



Female scale slightly elongated, about 2 millimeters long, or 

 1.5 millimeters in diameter, white, transparent, and thin, show- 

 ing the shriveled insect beneath; exu\ise terminal; yellow to 

 brown, second skin broad-oval, first skin projecting beyond 

 scale. Adult female pale yellow, almost colorless, oval, broadest 

 across the middle; abdominal segments apparent; caudal area 

 with median lobes slightlj' darker, moderately divergent, rounded, 

 with six to eight teeth on the inner edges, not produced to 

 level of other lobes; second and third lobes each composed of 

 two rounded lobules; a pointed glandular process laterad of 

 median and second lobes ; a well-developed spinelike plate laterad 

 of each lobe; margin beyond lobes serrate with an incision and 

 a spinelike plate (Plate III, fig. 15). Circumgenital glands 

 with median group of 7 or 8 orifices, anterior laterals of 19 

 or 20, posterior laterals of 11 to 16. A few dorsal tubular 

 spinnerets. 



Male scale white, sides parallel, distinctly tricarinate, exuvia 

 pale yellow; about 1 millimeter long. 



Luzon, Laguna, Los Baiios {Baker), October, 1915, on Maca- 

 ranga ianarius. 



All of the species listed in the above table ha\ang three pairs 

 of lobes resemble Phenacaspis varicosa Green in the general 

 characters of the caudal margin. However, P. pellucida seems 

 to be distinct owing to its thin, transparent, and smaller scale. 

 The same characters distinguish it from P. chinensis Ckll. The 

 male scales and circular female scales of P. latissima Ckll., the 

 oval pores of P. strobilanthi Green, and the verj^ large lobes 

 of P. megaloba Green, respectively, differentiate them from this 

 species. 



Phenacaspis thoracica sp. nov. 



Female scale circular, 2.5 to 2.75 millimeters in diameter, flat, 

 opaque, white; exuvia yellow, first skin scarcely projecting 

 beyond the margin, second skin broad-oval. Adult female brown- 

 ish, elongated, thorax protruding, with lateral prominences, 

 abdomen regularly and conspicuously segmented (Plate III, fig. 

 16) ; on each side of the mouth a gland with oval pores; median 

 lobes of caudal margin divergent, rounded, finely dentate on 

 inner sides, produced to level of other lobes, very little darker; 

 second and third pairs of lobes each composed of two rounded 

 lobules; a pointed glandular process laterad of median and sec- 

 ond lobes ; a well-developed, spinelike plate laterad of each lobe ; 

 margin beyond dentate, resembling P. mischocarpi (Plate III, 



