2 The Philippine Journal of Science isit 



V. Anal ring with hairs. 



c\ Female with posterior extremity cleft; anal orifice closed above by 

 a pair of triangular plates ; secretion of female appearing cottony, 



waxy, glassy, or horny _ Lecaniinae. 



c^ Female with no posterior cleft; no triangular anal plates; female 



usually with a mealy secretion Dactylopiinae. 



a^ Adult female without legs ; scale covering adult composed partly of 

 exuviae; abdomen terminating in a compound segment or plate; anal 

 ring hairless Diaspinae. 



MONOPHLEBIN.<« 

 Synoptic table of the genera. 



a\ Adult female with a long posterior ovisac; male vsdthout lateral fleshy 



caudal processes Icerya. 



a-. Adult female without a posterior ovisac; male with lateral fleshy caudal 

 processes. 

 V. Female antennae 9-jointed ; male with ten caudal appendages.. Drosicha. 



h'. Female antenna 6- or 7-jointed; male unknown Monophlebulus. 



V. Female antennae 11-jointed; male with six to eight caudal ap- 

 pendages Llaveia. 



Genus ICERYA Signoret 



Type, Dorthesia seychellarum Westwood. 



Female soft with long, usually ribbed ovisac, varying in color ; 

 antennae 11-jointed; skin v^^ith long scattered hairs and rounded 

 spinnerets. Male without lateral fleshy caudal processes. 



Synoptic table of the species. 



a'. Antennae of female with ten joints (Plate I, fig. 1) ; filaments numerous, 



ovisac not entirely covering the insect (Plate I, fig. 3) jacobsoni. 



a'. Antenna of female with eleven joints (Plate I, figs. 4, 5) ; secretion 

 densely covering the body. 



b^. All the secretion white, filaments not numerous Candida. 



b-. Part of the secretion a bright yellow, body with many long fila- 

 ments seychellarum. 



Icerya jacobsoni Green. 



Icerya jacobsoni Green, Tijidsch. voor Ent. (1912), 55, 316. 



Adult female flat, oval, reddish orange, the color obscured 

 by the white mealy secretion excepting in two lateral stripes 

 where the color is exposed ; margin with a series of 20 radiating, 

 long, curved, white, waxy processes (Plate I, fig. 3) ; denuded 

 insect 5 to 7 millimeters long. Antennae 10-jointed, the four 

 basal joints cylindrical, the next five subglobular, the terminal 

 elongate-oval (Plate I, fig. 1). Legs well developed, moderately 

 stout, tibia slightly shorter than femur and trochanter together, 

 tarsus less than half as long as tibia, claw pointed, digitules 



