JJo. 5-] Scale Innects in Madras. 25 



agaiu near tlie oval lobes ; the rest of the dermis with a few scattered 

 hairs. Long 3-3^ mm., wide 2-2^ mm. 



$ Second stage (described fronti Miss Tomlin's coloured drawings) 

 very elongate, ends equally rounded, ochreous, dorsum darker; legs 

 reddish. Caudal filaments long, those of the body long, slender, and 

 straight. 



Hah. — On croton at Nungumbaukum, Madras, Jan. 10th, 1893. 

 This very interesting species is allied to the D. filamentosus of Cockerell, 

 Jour. Inst., Jamaica, Vol. I, page 254, but this latter has a seven-jointed 

 antenna. I know of no species of Dactylopius secreting such a 

 quantity of waxy material as this, and tlie species appear in other 

 respects to be quite distinct and I venture to describe it as new. It 

 is a most injurious species infesting crotons in the compound. In her 

 notes Miss Tomlin says : — *' Also found on leaves of trees, but not 

 so plentiful there. ^' Whether these are the same as those which occur 

 on the croton I am unable to state as the specimens were not forwarded 

 for investigation. 



Dactylopius viridis, n, sp. 

 PI. Ill, fig. 1. 



$ Adult; prior to gestation (fig. 1«.) covered with white mealy wax, 

 margin all round thickly set with narrow white waxy appendages, ex- 

 cept at anal extremity where there is a slight division ; in the more 

 advanced stage the insect covers its body with a thick layer of white 

 waxy felting which forms a complete oval sac in which the eggs are laid. 

 When treated with potash it is of a beautiful emerald green, which is 

 retained to a certain extent after mounting in Canada Balsam. Antenna 

 (fig. 16.) short of 7 joints, last joint the longest, and in length equal 

 to 2 and 3 together ; the rest are of nearly equal length : all with very 

 fine short hairs ; Legs (fig. \c.) short, very little longer than antenna; 

 tarsi much shorter than tibiae; digitules of claw and tarsus slender: all 

 are often wanting. Rostrum hiarticulate, basal joint with two stiff 

 hairs at apex, and two moie on the middle of the apical joint. Anal 

 ring with six hairs. Anal lobes obsolete with one long hair : often 

 broken awaj'-, and two or three short spines. Dermis with a few short 

 delicate spines, more numerous beneath in front near the antennae. 

 2 Long 2-3 mm., wide l-l^ mm., Sac long 3§ mm. 



Larva, anal lobes nearly obfolete, each with one long and two or more 

 short hairs. Antenna of 6 joints, 1 to 5 short and sub-equal, 6 

 about one-third the length of the whole. Anal ring with 6 hairs. 

 Rostrum hiarticulate, filaments very long. 



