2 20 Lecaniin^, 



LECANIUM ARUNDINARIyE, j/. «oz/. 



(Plate LXXIX.) 



Adult 9 {figs. I, 2) ochreous ; median area slightly suffused with red, the 

 malpighian tubes showing through the derm as a broken chain of elongated 

 spots. Eyes black, prominent, distant from margin. In the living insect there 

 are many short white waxy filaments scattered over the median dorsal area {fig. !)• 

 Form elongate, narrow ; extremities acute. Marginal zone thin and trans- 

 lucent ; median area raised, with a sharply defined median longitudinal ridge. 

 Derm cells inconspicuous and difficult to define ; traces of large oval cells are 

 suggested on parts of the median area. (Scales of anal operculum missing in the 

 single example examined.) Stigmatic cleft {fig. 3) with semicircular chitinous 

 rim; spinesthree to five, the outer ones — when present — small and fine, the normal 

 three very stout, with rounded extremity, the central one reaching to or beyond 

 the margin. Marginal hairs fine, simple, pointed. Antenna {fig. 4) with six 

 joints, the third almost as long as the terminal three together. Formula : 

 3, 6, 1,4 (2, 5). Legs well developed ; tarsus as long as, or longer than, tibia 

 {gfi. 5). Length 7 mm. Breadth 2^25 mm. 



Ovoviviparous ; the young larvse elongate, pale reddish fulvous. 



Described from a single example found on upper surface of leaf oi Arundi- 

 naria sp. Pundaluoya (July.) 



EXPLANATION OF PLATE LXXIX. 



LECANIUM ARUNDIN.'VRI^. 



Fig. I. Lea.{ of Arzendznana with insect, nat. size. 



2. Adult ?, dorsal view, x 6. 



3. Stigmatic cleft and spines, x 650. 



4. Antenna, x 150. 



5. Leg (median), x 150. 



