on 
GENUS PsEupococcus WESTWooD. 
Pseudococcine forms with triangular wax pores in the derm 
predominating over those of the circular type; with many cer- 
arli, usually seventeen to nineteen pairs, distributed among the 
abdominal, thoracic, and cephalic segments. Tarsal claw with- 
out a denticle and antennae of adult female seven or eight 
segmented. 
Type of the genus Pseudococcus longispinus (Targ.). 
As limited above, the genus comprises but five species in 
Hawaii, all of which are agricultural or horticultural pests of 
considerable economic importance and are consequently treated 
im extenso. 
The species may be distinguished by use of the following key: 
1. Derm with dorsal rows of spines, besides the marginal cerarian spines, 
the latter toward the middle of the body tending to become widely 
SOP Ar aibe Ue eacter hatenie ecg testes icky aie ts series tome ot Sch s cides Sais ares 2 
Mermy without dorsal rows’ of spines: -..--.o-- -c- > tea 3 
2. Cerarian spines short and stout, the three pairs of the marginal series 
in front of the anal lobe pair widely separated. 
Usually oceurring individually; ovovivyiparous, therefore never 
developing an ovisac; dorsal secretion in rows of small granu- 
lar masses, lateral filaments subequal, cylindrical; derm dark 
red, becoming purple madder when boiled in KOH; wide range 
of host plants, but commonly found on guava, avocado, palms, 
Ficus ecarica, Ficus bengalensis, Sterculia urens, Asparagus 
310) Depp etl oY-1t a eee ean eee CO me ee cr Ce coae Seaice nos aaiaee nipae 
Cerarian spines longer and more slender, the pairs immediately in 
front of the anal lobe pair close together. 
Usually occurring in clusters, under cover of densely matted 
yellowish white wax; the species is oviparous and this cover- 
ing is the ovisac; eggs purplish; integument shining black, 
becoming violet carmine when boiled in KOH; secretion heavy, 

Fig. 1. Trionymus caleeolariae (Mask.) a, antennae; b, leg; ¢, anal 
lobe showing cerarii, triangular pores, and auxiliary setae; d, anal lobe, 
ventral side, showing triangular chitinization. 
Fig. 2. Antonina spp. abdominal spines; a, indica; b, crawi. 
Fig. 3. Trionymus spp. Anal lobe cerarii, triangular wax pores, and 
auxiliary setae; a, lounsburyi; b, imsularis. 
