OBSERVATIONS ON SCALE-INSECTS (COCCIDAE) — IV. 



11 



distinct group or tuft of long fine hairs. Posterior legs (fig. 6, d) not differing 

 materially from the intermediate pair; claws distinctly articulated; digitules 

 represented by slender hairs. Eyes well developed, truncate, and placed 

 considerably below the antennae (see fig. 6, a). Thoracic stigmata (fig. 6, e) large 

 and somewhat reniform in outline ; outer lateral lobe-like extension with a group 

 of circular pores ; abdominal stigmata present on the first and second segments 

 only ; these organs are represented by minute circular orifices, external to which 

 is a roughly horse-shoe-shaped thickening of the body wall. Anal orifice circular ; 



Fig. 6. Margarodes buxioni, Newst., sp. n., $ ; «, ventral view of a specimen 

 cleared in potash ; b, antenna ; e, front leg ; d, posterior leg ; e, stigma ; 



/, pore. 



ring strongly chitinised, with a disc-like structure at the distal margin. Vaginal 

 orifice nearly opposite the anal [opening. Length, 5*7 mm. ; width, 4-3 mm. ; 

 length of front legs. 1 mm. 



Male (fig. 7, a). Colour of dried specimens dark piceous ; when placed in potash, 

 rich dark crimson. Wings hyaline ; costa pale crimson, darkening distally ; veins, 

 of which there are traces of three, faintly indicated ; outline variable in the two 

 examples before me ; in one the wing is slightly longer and narrower than the other. 

 Subterminal segment of the abdomen with a dense tuft or pencil of fine white silky 

 filaments. Antennae (fig. 7, b) of nine segments, and finely pubescent ; distal segment 



