1 86 Lecaniincs. 



EXPLANATION OF PLATE LXL 



Structural Characters of Female Lecanium. 



Fig. I. Ventral aspect of typical Lecanium. 



(a) eye ; {b) interantennal hairs ; (c) parastigmatic glands ; (,d) 

 anterior spiracle ; {e) posterior spiracle ; (/) stigmatic cleft ; {g) 

 abdominal hairs ; (//) circumgenital glands. 



2. Rostral apparatus. (A) clipeus ; (B) mentum ; {a) bases of rostral 



filaments ; {b) hypopharynx ; {c) sac for reception of retracted loop 

 of rostral filaments. 



3. Spiniform marginal hairs of L. marsupiale. 



4. Dilated and divided hairs of L. olece. 



5. Divided hairs of Z. inangiferce. 



6. Simple marginal hairs oi L.frontale. 



7. Flabelliform marginal hairs of Z. expansum. 



8. 6-jointed antenna, showing partial subdivision of third joint. 



9. 7-jointed antenna. 



10. 8-jointed antenna. 



11. Plates of anal operculum oi L. functidiferu7n. 



(A) outer edge ; (R) base ; (C) inner edge ; (a) apex : {b) outer 

 angle ; (c) inner angle. 



12. Anal operculum of Z. olece. 



13. Foot of Lecanium. (a) tarsus ; (,b) tarsal digitules ; (c) claw ; id) 



ungual digitules. 



EXPLANATION OF PLATE LXII. 



Structural Characters of Male Lecanium. 



Fig. I. Adult i of L. marsupiale, ventral aspect, (a) basal joints of antenna ; 

 {b) ocelli ; {c) rudimentary eye ; {d) anterior spiracle ; {e) posterior 

 spiracle ; (/) genital sheath ; {g) penis. 



2. Adult 6 of Z. marsupiale., dorsal aspect, (a) basal joints of antenna ; 



(1^) ocelli ; (c) rudimentary eye ; {(t) apodema ; {e) posterior spiracle ; 

 (/) base of wing ; {g) scutelluni ; (/;) penultimate segment of 

 abdomen, bearing caudal seta;. 



3. Head of Z. maritimum, ventral aspect. («) basal joint of antenna ; 



{b) ocelli. 



4. Head of Z. 7«arz//;«z^;«, dorsal aspect, (a) ocellus ; (j»5) rudimentary eye. 



5. Terminal joint of antenna of Z. maritimum. 



6. Part of penultimate abdominal segment of male Z. marsupiale showing 



pit at root of caudal setffi. 



7. Wing of adult male of Z. marsupiale. 



8. Leg of male Z. inatiiimian. (a) coxa ; {b) trochanter ; {c) femur ; {d) 



tibia ; (?) tarsus. 



9. Foot of male Z. marilimum. 



10. Typical puparium of male Lecatiium, 



