236 LecaniincB. 



Young larva reddish. Caudal setse about half length of body. 



Egg brownish red. 



Habitat on upper surface of leaves of Dalbergia and Liisea : Pundaluoya. 

 On an undetermined shrub : Elephant Pass. 



Occurs also in Java, on various plants ; and in Queensland, Australia ; on 

 Ficus ; probably an introduced insect in the latter country, as it has been found 

 there only on ornamental trees in parks. 



LECANIUM EXPANSUM, Green, var. OUADRATUM, n. var. 



Differs from type in the smaller and blunter scales of anal operculum ; their 

 base and outer edge about equal in length, together approximately forming a 

 square (compare//. Ixxxvi.,^?"-^. 4 and 19). The antenna also is more stunted 

 in this form. In all other characters it agrees with the type. 



Habitat on leaves of the cultivated nutmeg : Balangoda. On an undeter- 

 mined tree : Kalutara. 



I have also received this variety from Jnva, where it occurs on filyristica 

 fragrans (' nutmeg ') and several other plants. 



The size and form of the anal scales of the adult female are usually so constant 

 in any one species of Lecaniwn that such a marked difference as is found in the 

 present instance must be looked upon as varietal. I do not find any inter- 

 mediate forms. 



EXPLANATION OF PLATE LXXXVI. 



LeCANIUM EXPANSUM. 



Fig. I. Adult 9, in situ, nat. size. 



2. „ dorsal view, x 7. 



3. „ anal operculum and surrounding parts 



4. „ anal operculum, x 100. 



5. Group of spinnerets from dorsal surface. 



6. A single ventral spinneret. 



7. Stigmatic cleft and spines. 



8. Waxy plate from dorsum. 



9. Marginal scales, dorsal view, x 650. 



10. Antenna. 



11. Marginal hairs of immature female. 



12. Marginal hairs of male larva. 



13. A single marginal hair of male lan'a. 



14. Male puparium. 



15. Adult male, dorsal view. 



16. Head of male, from below, 



17. Terminal joint of antenna of male. 



LeCANIUM EXPANSUM, var. QUADRATUM. 



iS. Antenna of adult female. 

 19. Anal operculum, x 100. 



