50 INSECTS NOXIOUS TO AGBICULTUBE. 



Male puparium narrower than that of the female, and a good 

 deal darker, being sometimes almost black ; length, about ^oin. ; 

 not carinated. 



Adult female dark-grey in colour, elongated, segmented. 

 Abdomen ending in two median lobes ; along the edge several 

 deepish curvilinear incisions, between which are some strong 

 spines. Five groups of spinnerets : lower pair with fourteen to 

 sixteen orifices ; upper pair, twelve to sixteen ; uppermost group, 

 four to six. 



Adult male unknown. 



Habitat On Astelia cunninghamii, Wellington. 



16. MYTILASPIS LEPTOSPERMI, Maskell. 



N.Z. Trans., Vol. XIV., 1881, p. 215. 



(Plate V., Fig. 4.) 



Female puparium flat, elongated, irregularly pyrit'orm, light- 

 brown in colour ; length, about ^in. The secretion forming 

 the puparium is mixed with bark-cells of the tree, arranged 

 longitudinally. 



Male puparium narrower than that of the female, and darker 

 in colour. 



Adult female greyish-green, elongated, segmented ; abdo- 

 men ending in six lobes, of which the two median are con- 

 spicuous and somewhat large and floriated, the rest very small. 

 Five groups of spinnerets : the upper group with about fifteen 

 openings ; the others with from twenty-five to thirty -five. Single 

 spinnerets none, or very few. 



Adult male unknown. 



Habitat On Leptospermum scoparium, (manuka), Welling- 

 ton ; Canterbury ; Auckland. The puparia are often numerous 

 on the loose scaly bark of the tree. 



17. MYTILASPIS METROSIDERI, Maskell. 



N.Z. Trans., Vol. XII., 1879, p. 293. 



Female puparium white, pyriform. Female in all stages 

 dark-coloured ; in last stage nearly black. General outline 

 resembling M. drimydis, but the abdomen is much sharper and 

 more pointed, with a finely-serrated edge, ending in three 

 minute, pointed lobes, joined by a scaly process. Spinnerets in 

 an almost continuous arch, which may be resolved into five 



