ASPIDIOTUS ARTICULATUS. 129 



plates between each of the lobes are usually bifurcate, 

 and not extending beyond the lobes; beyond the 

 second pair of lobes are three palmate plates, the first 

 very small, the other two much larger than the lobes. 

 Immediately above these is a very conspicuous spiny 

 process, and anterior to the latter are four to five more 

 plates, the first broadest and serrate all along its outer 

 margin, the others are usually deeply divided. Dorsal 

 tubular spinnerets occupying a broad area along the 

 margins ; and numbering about fifty-five on either side. 

 A single minute spine is situate at the base of each 

 lobe, a larger one over the first palmate plate, and a 

 similar one near the base of the last plate. Circum- 

 genital glands in two lateral groups consisting of six 

 to eight spinnerets. 



The female of the second stage shows no signs of 

 the articulation which forms so marked a feature in 

 the adult insect. 



Habitat. On Ixora coccinea, under glass, Worcester 

 Park, Surrey, collected by Mr. E. E. Green, June, 

 1899. 



Distribution. This curiously distinct species is of 

 tropical origin. Mr. Morgan's types were from 

 Demerara (Coll. Douglas), on Dictyospermum album. 

 Hempel also records it from Brazil, and Cockerell from 

 Mexico. It is one of the commonest species of Coccids 

 in the West Indies, where it infests palms and various 

 other plants. It has also been found in the southern 

 states of America, and is generally known as the 

 "West Indian Red Scale." It does not appear to 

 have got much hold in this country as a greenhouse 

 pest, but may in time spread, and every precaution 

 should be taken to prevent its doing so. 



