Maskell. — On Coccididas. 27 



more. I have therefore thought it worth while to figure this 

 curious form. 



Eriococcus fagicorticis, sp. nov. Plate V., figs. 1-5. 



Sac of adult female white, placed in the crevices of the 

 bark of the tree, accompanied by much black fungus ; normal 

 form elliptical, convex, but often irregular; rather loosely 

 felted: average length about x-in. 



Sac of male white, elongated, narrow, slightly convex : 

 length about •g'jjin. 



Adult female red, filling the test but shrivelling at gesta- 

 tion. Anal tubercles conspicuous, setiferous. Antenna? rather 

 long and slender, with seven joints, of which the third and 

 fourth are the longest, the fifth, sixth, and seventh the 

 shortest and subequal : the antenna might seem to have more 

 of a Dactylopid than an Acanthococcid appearance if the last 

 joint were not so short. Feet having the tibia distinctly 

 longer than the tarsus : digitules fine hairs, the lower pair 

 sliglitly dilated at the tip. Anogenital ring with eight hairs. 

 Mentum dimerous. All round the margin of the body is a row 

 of strong conical spines, and a large number of smaller spines 

 are visible on the dorsum, and are largest on the cephalic and 

 thoracic regions. The epidermis also bears numerous small 

 circular spinnerets. 



Larva red, flattish, elongated, active : length about u^fin. 

 Anal tubercles conspicuous. Antennas short, thick, with six 

 subequal joints. Feet normal. On the margin a row of 

 strong conical spines, and four longitudinal dorsal rows of very 

 small spiny hairs. 



Adult male unknown. 



Eab. In New Zealand, in crevices of the bark of Fagus 

 fusca, Eeefton district. 



This is a clearly distinct species, from the form of the 

 antenna and the length of the tibia in the adult female. The 

 last of these is abnormal in the genus Eriococcus, but as all 

 the other characters are normal I have been unable to remove 

 it from that genus : indeed, if that were done, a new genus 

 would have to be established to receive it, and there are 

 scarcely sufiicient grounds for such a course. I have seen one 

 or two specimens in which the thinness of the sac on the 

 dorsum might almost relegate the insect to Gossyparia, but I 

 think these were exceptional. 



Eriococcus eucalypti, sp. nov. Crawford Coll. Plate V., 



figs. 6-14. 



Sac of adult female yellowish- or reddish-brown or brown, 

 but covered with a number of small white glassy tubes, usually 

 directed longitudinally, which give it often a peculiarly clean 



