Uo. I. ] Description of Netv CocciJa. 61 



forming more or less complete sacs. Abdominal cleft and lobes present 

 in all stages. Male pupa covered witb similar excretion {Scale Insects 

 of I^ew Zealand, 18S7, page 84). 



I have omitted from these generic characters one — " Secretion is 

 conspicuous or absent on adult females/' which I included in 1887. 

 Such a character, depending merely upon the qiiatitifj/ of the matter 

 covering the insect, is after all more accidental than otherwise, and at 

 best ought only to avail for specific differentiation. 



Eriockiton cajaiii, sp. no v. 



{Plate I, fig, 3 a — n.) 



Test of adult female dirty -grey, moderately thick; so closely felted 

 as to almost resemble wax : elliptical, convex above, usually open be- 

 neath, but sometimes closed : covering the insect completely. The tests 

 are congregated in masses on the twigs, mixed with male puparia and 

 with the younger females. There is usually no marginal fringe, but 

 sometimes a fringe of small segments may be detected : the edges are 

 somewhat thicker than the rest. Surface of the test often rugose, as if 

 composed of many small irregular segments. Length about -^-^ inch. 



Test of male pupa elongate- elliptical, convex, whiter and cleaner- 

 looking than that of the female : very thin, transparent and brittle : at 

 the edge there is a small fringe of very minute segments. Length 

 about 2-V inch. 



Larva elliptical, flatfish, active, naked : colour reddish yellow : length 

 about -^f^ inch : exhibiting a rather wide abdominal cleft with lobes which 

 do not project beyond the extremity. Antennae of six joints, of which 

 the third is the longest, the second the shortest, the rest sub-equal : there 

 are a few hairs on each joint, and on the last one, hair very much longer 

 than the rest. Feet rather long, slender : the tibia is longer than the 

 tarsus (a very abnormal character amongst coccids of all groups) : a few 

 hairs on each joint : upper digitals rather thick, lower pair only slightly 

 dilated at the ends. Mentum monomerous. Abdominal lobes small, 

 eack bearing one very long seta and a short spine. Anal ring with six 

 longish hairs. The spiracular spines are very long : and all round the 

 margin is a row of minute conical spines. 



Female of the second stage reddish yellow; elongate-elliptical, flatfish, 

 active : length about -^-^ inch. Antennae of six sub-equal joints, the last 

 bearing some shortish hairs. Abdominal cleft wide, as in the larva : 

 lobes short, each bearing six shortish setse, arranged in pairs. Anal ring 

 with numerous hairs. There is a thin, white, mostly fragmentary test, 

 which at the edges forms a fringe of short cylindrical tubes : these tubes 

 spring from the marginal conical spines, which are of two sizes, as in the 

 adult. 



