204 L^caniinc?, 



LECANIUM DISCREPANS, sp. nov. 

 (Plate LXX.) 



Differs from L for7nicarii principally in having marginal hairs fimbriate at 

 extremities {fig. 4), and in the presence of submarginal tubercles. Scales of anal 

 operculum {fig. 3) narrower ; outer edge sinuate and distinctly longer than 

 base. Antennae relatively and actually longer ; seven-jointed {fig. 2) ; formula, 

 4 (3> 7)> (i, 2), (5, 6), or (3, 4, 7), (i, 2), (5, 6); sometimes obscurely eight- 

 iointed from an imperfect division in 4th {fig. i). Dermal cells less numerous 

 and conspicuous. Other characters as in formicarii. Length 2 to 3 mm. 

 Breadth 175 to 2'2S mm. 



Male unknown. 



Habitat — either in nests of Cremasfogaster doJinn, or exposed and attended 

 by other ants. On tea plant. Pundaluoya, Yatiyantota, Passara. 



It is difficult to separate these two species except by minute microscopical 

 characters, but the structural difference in the marginal hairs seems to me to 

 be of specific importance. 



EXPLANATION OF PLATE LXX. 



LeC.ANIUM DISCREPANS. 



Fig. 1. Antenna, with partial division of fourth joint, x 150. 



2. „ with normal number of seven joints, x 150. 



3. Anal operculum, x 150. 



4. Marginal hairs and stigmatic spines, x 650. 



