SOUTH AFRICAN COCCID^. 



113 



Dactylopius filamentosus, Ckll. 

 Mr. Fuller sends a large variety of this species on orange, 

 and says it is more common upon a native Domheya. The an- 

 tennae measure as follows in (a, joints : (1.) 30, (2 ) 42, (3.) 30-36, 

 (4.) 39-45, (5.) 24-30, (6.) 33, (7.) 75-78. 



Ceroplastes candela, Ckll. & King, n. sp. 

 5 . Long. 2f , lat. 8^, alt. 4|nim. ; dark red-brown, elevated, with 

 vertical sides. Caudal horn a prominent stout spine, hardly f mm. 

 long, placed nearer the top of the scale than the base. Dorsum smooth 

 and shining, with only a very small central raised line. Sides of in- 

 sects with vertical stripes of dense white secretion ; no wax, except 

 that composing these stripes, between the insects, which are densely 

 crowded together, their vertical sides contiguous. They rest on a thin 

 substratum of wax, and are covered above with yellowish-white wax, 

 about 1 mm. thick. The outlines of the insects are vaguely marked 

 on the surface of the covering wax by a brownish stain. The wax, 

 with the insects beneath, surrounds the twigs as the wax does the wick 

 of a candle ; the whole mass is about 20 mm. diameter, that of the 

 twig being about 5 mm. 



Mr. King found the antennae to measure thus in /a. :— 



Joints: (1.) (2.) (3.) (4.) (5.) (6.) (7.) 



Length : 56. 68. 56. 60. 28. 32. 40. 



Breadth: 64. 48. 40. 32. 28. 28. 24. 



Found by Mr. Fuller at Eichmond, Natal. The nearest ally is an 



undescribed species from Paraguay, collected by Professor Bruner. 



Ceroplastes egharum, Ckll., subsp. fidleri, T. D. A. & W. P. Ckll., 



n. subsp. 



2 . Waxy scale hemispherical, long. 15^, lat. 12, alt. 10 mm. ; in 

 dry specimens rough, pale reddish, not divided into plates. ? . De- 

 nuded of wax hemispherical, very dark red-brown, long, 8^, lat. 8, 

 alt. 8 mm, ; sides infolded beneath, so that the inferior aperture is 

 considerably smaller than the diameter of the scale. Anterior end 

 narrowed and elevated, having the form of the end of a pig's snout. 

 Caudal horn distinct, but very short, about ^ mm. long ; a very deep 

 sulcus runs from below the caudal horn to the margin. Middle of 

 back with a prominence about as high as the caudal horn, but larger, 

 because lengthened posteriorly, having a keel-like form. 



In caustic potash the female gives a deep madder-red colour ; this 

 colour is obliterated, leaving only a faint greenish tint, by the addition 

 of acetic or nitric acid. On adding more potash, so as to neutralise 

 the acid, the red colour is restored. The wax is not altered in colour 

 by chloroform. 



Skin with several large (about 800 fi diam.) strongly chitinous red- 

 brown patches, thickly perforated with small gland-pores, recalling the 

 nozzle of a garden sprinkler. Legs ordinary, except that the femur is 

 very stout ; measurements in /x: femur with trochanter, 192 (width of 

 femur 95); tibia, 160; tarsus, 81; claw, 27. Tarsal digitules about 

 60 fx long, very fine hairs, with rather large round knobs. Claw- 

 digitules stout, about 36 //. long, with large dark brown knobs. 



ENTOM. APRIL, 1902. K 



