48 CALIFORNIA STATE COMMISSION OF HORTICULTURE. 



and others are of a reddish-yellow tint. The last segment presents the 

 following characters: The mesal group of spinnerets consists of from 

 9-15, usually 10 or 11; the cephalo-laterals, of from 20-27, usually 23; 

 the caudo-laterals, 15-23, usually 16 or 17. The mesal lobes are small, 

 separated at their base by at least the width of one of them, and 

 divergent. The second and third lobes of each side are deeply bifur- 

 cated, with the lobes divergent; in each case the lateral lobule is more 

 rounded than the mesal one. The fourth lobe is present, but much less 

 developed than the other lobes; the lateral margin of this lobe is serrate. 



The plates are simple and pointed. There are four or five plates, 

 subequally distant from each other, between the fourth plate and the 

 penultimate segment. 



The spines on each side of the ventral surface are situated as follows : 

 First mesad of the first lobe; second, third, and fourth laterad of the 

 second, third, and fourth lobes, respectively; and the fifth between the 

 seventh and eighth plates. All the ventral spines are very minute 

 except the first pair, which are very conspicuous. 



Of the dorsal spines the first is very delicate and is situated laterad 

 of the first lobe; the second is large and is on the second lobe near its 

 lateral margin; the third and fourth are laterad of the third and fourth 

 lobes, respectively; and the fifth is about midway between the sixth and 

 seventh plates. 



Between the fifth and sixth plates there is a triangular prolongation 

 of the body which bears an elongated pore. The penultimate and 

 antepenultimate segments bear plate-like spinnerets. 



Eggs. The eggs are yellow; those recently deposited are paler than 

 those ready to hatch. 



Larva. The recently hatched larvae are orange yellow, with the eyes 

 dark purplish. 



Scale of Male. The scale of the male is strongly tricarinated; the 

 exuviae are yellow. 



On pineapple. (In greenhouses.) 



This species has been reported from quarantine, on pineapples (fruit) 

 from the Hawaiian Islands. It was also observed on growing plants in 

 greenhouse. 



Diaspis carueli Targ. 



Scale of Female. Circular, snowy white, with the exuviae central, 

 naked and yellow. Diameter of scale, 1 to 1.5 mm. 



Female. Body yellow, circular, slightly elongated posteriorly. The 

 last segment of the body presents the following characters: The ante- 

 rior group of spinnerets consists of about 8, the anterior laterals of 



