Parlatoria. 163 



a mesal squame, a lobe, a spine, and two lateral squames. The third space has 

 similar characters to the second, with the addition of a supplementary semi- 

 lunar pore between the two lateral squames. The fourth space bears a mesal 

 squame, a rudimentary lobe, a spine, and usually three lateral squames, with 

 two supplementary pores. The basal space differs from the fourth only in the 

 greater number (three or four) of lateral squames. (These divisions are indicated 

 by dotted lines on fig. 7, plate Iviii.) The dorsal pores have conspicuously 

 thickened rims, and communicate with short stout cylindrical ducts- The anal 

 aperture, in all known species, is considerably below the level of the genital 

 orifice. 



The adult male, in such species as have been examined, is very similar to 

 that of Aspidiotiis^ being rather broad and dorso-ventrally depressed. The 

 terminal joint of the antenna bears one or more knobbed hairs. 



The three species described below have been discovered since the completion 

 of Part I. of this work. According to the synopsis of genera, on p. jpi this 

 genus should have followed Aonidia. 



Our i&w Ceylon species are of no economic importance. 



Synopsis of Species. 



I. Scale with large secretionary area. 



A. Scale oblong. Pygidial lobes bicuspid i. viytilaspiformis. 



B. Scale sub-circular. Pygidial lobes squarely 



truncate 2. cingala. 



II. Scale consisting principally of the large second 



pellicle, with a very narrow secretionary border 3. aonidiforniis. 



