490 
Journal of Agricultural Research 
Vol. XXXI, No. 6 
large, faint areolations, not always evident; tibia about twice length of tarsus, 
about two and one-half times in hind pair, claw without denticle, both pairs of 
digitules long, slender, knobbed, but those of claw stouter; beak elongate conical, 
fairly evidently 2-segmented; series of cerarii incomplete, one pair on head and 
the 5 or 6 posterior abdominal pairs only present, each of those on head com¬ 
posed of 2 spines, a few triangular pores and 1 or 2 accessory setae, rarely with 
one or both of the spines elongated and setalike, still more rarely with 3 spines, 
the apical abdominal pair each large, with 2 spines, a loose cluster of pores and 
several accessory setae, not underlaid by any definite chitinous thickening, the 
remaining pairs with the spines progressively smaller anteriorly, each with 2 
spines, a few triangular pores and one or more accessory setae, spines in each of 
sixth or anterior developed abdominal cerarii most often elongate, setalike; 
anal lobes hardly protruding, apical seta fairly large, about 100 m long when 
uninjured, longest anal ring seta about 64 /x; with the usual types of pores and 
ducts, triangular disk pores well distributed over body both dorsally and ventrally, 
apparently scattered or in very poorly defined broad segmental bands, multi- 
locular disk pores confined to the ventral abdominal region, in a large cluster 
Fig, 2 .—Pseudococcus boninsis adult female. Apex of abdomen, X 185 
around the genital opening, and in two transverse rows or narrow bands on the 
two ventral segments anterior to the genital clusters, in no case, so far as has been 
determined, occurring in the head, thoracic, or anterior abdominal region, and 
none of the bands or clusters attaining the body margin at any point; only 
medium or rather small, short tubular ducts present, these, in the abdominal 
area, most abundant along the body margin adjacent to the cerarii, but present 
to some extent in the median area both dorsally and ventrally; body setae, both 
dorsally and ventrally, comparatively long and slender, showing considerable 
variation in length, those of ventral area actually and relatively longer; anal 
ring not unusual, with inner and outer single pore bands and 6 setae; ventral 
cicatrix of medium size, roughly quadrate, with rounded corners. 
Pre adult female. —In general, rather closely resembling the adult except for 
smaller size and extent of development of the different structures; multilocular 
disk pores wanting. 
This species has been redescribed from a considerable series of 
specimens, all from sugar cane, from Argentina, Bermuda, Brazil, 
