18 ROBERT NEWSTEAD. 



Very like P. iceryoides, Green (Mem. Dep. Agr. India, ii, p. 26) in having a con- 

 spicuous fringe of white filaments ; but in Green's species the $ has a " fringe of 

 short, stout, conical spines which extend into broad clusters on the abdominal 

 segments " ; whereas in P. gracilis the spines are truncate and their arrangement 

 similar to those in P. insolitus, Green (I.e.), but in the latter spinose tubercles are 

 present also on the dorsum. 



S. India: Coimbatore, on mango, lO.ii. 14 ; S. Kanara District, on an unnamed 

 plant, ix.1913 (T. V. Ramakrishna, per E. Ballard). 



Tachardia bodkini, sp. nov. 



Female test. Obconical ; centre with a bluntly pointed prominence, rarely with 

 two ; margin with low, blunt, and usually bifid processes, clearly the remnants of 

 the rays of the test of the young female ; surface smooth ; a nipple-like prominence 

 over the anal opening. Colour bright subtranslucent orange-red, or in certain lights 

 faintly orange-ruby. Texture very hard and brittle, similar to that of the lac of 

 commerce (T. lacca). Average length, 5*4 mm. ; height, 3*3 mm. 



Female, adult. Form doubtful ; specimens macerated in KOH become broadly 

 ovate when mounted under pressure. Antennae about equal in length to the greatest 

 width of the anterior spiracles, composed of four ill-defined segments, with no trace 

 of hairs. Post-anal spike about two and a half times the length of the antennae. 

 Compound circumgenital glands or " tubercles " in four groups, each group con- 

 sisting of over one hundred individual pores. Margin of flattened specimen with 

 three pairs of large bilateral gland-tracts, the pores in each group of three distinct 

 kinds : (a) four or five relatively large ones, with strongly chitinised subcutaneous 

 tubes, arranged more or less in line and in the centre ; (6) minute, circular and 

 rimless pores occupying a large and roughly ovate area ; (c) a complete outer ring 

 of circular chitinous pores, resembling the circumgenital glands in the Diaspinae, 

 arranged on one side of the circle in a single row, on the opposite side in an irregular 

 band, two or three deep. The large pair of spiracles shaped somewhat like a cardinal's 

 hat, the irregular chitinous plate surrounding them beset with circular pores. " Lac 

 tubes " circular, the chitinised rim convex, the greatest diameter about equal to the 

 length of the antennae ; interior with relatively large pores. Anal chitinous tube 

 shagreened, i.e., set with minute, closely adpressed spines ; apical plates cuneiform 

 or notched ; anal ring with (?) ten hairs. 



Female test, second stage. Five-rayed, the anterior and posterior rays longest ; 

 central area with a nipple-like prominence. Colour slightly darker than that of the 

 adult. Length, 1*8-2 mm. 



Male puparium. Subcylindrical, each extremity with a pair of short lateral rays ; 

 dorsum with a central nipple-like extension, on either side of which is a distinctly 

 segmented, convex, median ridge. Length, 1*8 mm. 



British Guiana : near Repos, Georgetown, on Sapium jenmani, xii.1915 (G. E. 

 Bodkin). 



Froggatt* has described a species (T. angulata) the test of which, he says, comes 

 to a blunt point at the apex, its general appearance resembling a large blunt 



*Proc. Linn. Soc, N.S.W., xxxvi, 1911 



