676 



STATE BOARD OF AGRICULTURE. 



Figure 11. 



Lccanium longiihim. — Antenna: spiracular setae: 

 and ventral view of anal-plates ; d, discal seta ; 

 sa, sub-apical setae ; a, apical setae, on dorsal 

 surface.. 



LECANiuM (Eucalymnatus) perforatum Newstead. 



Female a flat, dark-colored scale of broad-oval form often 3/16 inch 

 long. The mature female almost black and marked distinctly into 

 plates or tesselations of irregular form. The diirk, chitinous shell of 

 these plates is pierced by round transparent pores which appear to ex- 

 tend clear through the chitin. There is also an appearance of a grain 

 to the plates produced by narrow streaks and dots of transluscent ap- 

 pearance. 



Antennae usually of eight joints with the line of division between 

 joints 4 and 5 often obscure. Spiracular setae pointed with the middle 

 one of each group of three much the longest. 



The anal-plates have all three corners with abrupt angles. Anal- 

 ring apparently with eight long hairs, often difficult to see. There are 

 on each side two long fringe setae each borne on a papilla, three sub- 

 apical setae, and three apical setae. 



Found most commonly on palms, common in greenhouses and not 

 readily confused with any of the other species in this region. 



