SCALE-INSECTS^ 51 



groups ; seventy or eighty openings ; several single spinnerets. 

 The rudimentary antennae can be made out. 



The young female has an elongated oval outline, little 

 corrugated. The feet, digitules, antennae, &c., resemble those of 

 M. pomorum. The abdomen is like that of the adult, without 

 the groups of spinnerets. 



Male unknown, but puparium smaller and rather darker in 

 colour than that of the female. 



Habitat On Metrosideros robusta (rata), Wellington, and 

 probably elsewhere. It is not common. 



18. MYTILASPIS PHYMATODIDIS, Maskell. 



N.Z. Trans., Vol. XII., 1879, p. 292. 



Female puparium flattish, pyrif orm, dirty-white or brownish ; 

 length, about -j^in. 



Male puparium similar, brown. 



Adult female greyish, elongated, segmented. Rudimentary 

 antennae visible. Abdomen ending in two lobes with a median 

 depression : several scaly and serrated processes, and some spiny 

 hairs. Five groups of spinnerets : uppermost group, six to nine 

 orifices ; upper side groups, ten to fourteen ; lower pair, fifteen 

 to twenty : several single spinneretr 



Male unknown. 



Habitat On Phymatodes biilardieri, Wellington ; Auck- 

 land. 



In outward appearance the female resembles M. pomorum, 

 but the puparium is quite different, and the abdominal charac- 

 ters also differ. 



19. MYTILASPIS POMORUM, Bouche. 



Aspidiotus pomorum, Bouche; Ent. Zeit. Stett., 1851, 



XII., No. 1. 

 Aspidiotus conchiformis , auctorum ; nee Gmelin, Syst. Nat., 



2,221. 

 Aspidiotus p?jrus-malus, Kcimicott : 1854, Acad. Science of 



Cleveland. 

 Aspidiotus juglandis, Fitch ; Ann. Rep., N.Y. State Ag. 



Soc., 1856 ; nee Signoret, loc. cit., 1870, p. 95. 

 Aspidiotus falciformis, Barensprung ; Journ. cV Alton et 



Burm., 1849. 



