Maskell. — On New Zealand CoccidEe. 215 



cliias 5, large, copiously branclied, tripinnate, set round the anus in a circle 

 interrupted behind, retractile within a common cavity ; this cavity has its 

 opening irregularly 5-lobed, the lobes more or less tubercled. The pinnules 

 of the branchiae are Hneated and tipped with black, the remainder being 

 a waxy white. Foot rounded in front and behind, margin thin and undu- 

 lated. There is a narrow notch in front, giving passage to the tubular 

 proboscis; and immediately above it, in the groove between the foot and the 

 mantle, are two minute flap-like projections. No odontophore, or buccal 

 armature of any description. 



Art. XXIX. — Further Notes on Coccidte m Neiu Zealand, ivith Descriptions 



of neiv Species. By W. M. Maskell, Fel. Eoy. Micros. Soc. 



[Read before the Philosophical Institute of Canterbury, 1st September, 1881.] 



Plates XV. and XVI. 



1st Group.— DIASPID^. 



(Trans., vol. xi., p. 189). 



1st Grenus, Mytilaspis, Linn. 



(Trans., vol. xi., p. 192). 

 1. Mytilaspis pyriformis, mihi. 

 (Trans., vol. xi., p. 194). 

 I HAVE lately succeeded in hatching out a male of this species. The insect 

 (fig. 1) is orange-coloured, about -^^inch long, of the normal form, generally, 

 of the Diaspidffi ; the abdominal spike is of considerable length. Antenna 

 (fig. 2) 10-jointed; foot (fig. 3) with four long fine digitules. Haltere 

 (fig. 4) normal. 



As remarked in a former paper (Trans, vol. xii., p. 294), the males of 

 the Diaspidae are not easily distinguishable. There is little certainty to be 

 obtained except by hatching from the puparia, and even then, as the puparia 

 are often similar, it is easy to make mistakes. 



2. Mytilaspis leptospenni, sp. nov. 

 Puparium irregularly pyriform, flat, light-brown, formed (besides the two 

 pellicles) chiefly of the bark-cells of the tree arranged longitudinally. The 

 peUicle of the second stage is comparatively small. 

 Young insect normal. 



Adult female greyish-green, generally resembling M. loyriformis. Abdo- 

 men ending in six lobes, of which the two median are conspicuous and 

 somewhat large and floriated, the rest very small. Five distinct groups of 

 spinnerets, the upper group with about 15 openings, the others with from 

 25 to 35. Single spinnerets none, or very few. 



