"94 INSECTS NOXIOUS TO AGRICULTURE. 



Adult female elongated-oval, convex, red in colour; length, 

 about 3*0 in. Body segmented, tapering rapidly to the posterior 

 extremity; the cephalic segment occupying more than half the 

 length. Anal tubercles conspicuous, apparently two, but on close 

 inspection found to be four, brown in colour ; two of them bear 

 longish setae ; all the four are much corrugated and bear many 

 short spiny hairs. Anogenital ring inconspicuous, with eight 

 fine hairs. Antennae of six short joints, tapering. Foot as if 

 atrophied, the joints small and swollen ; digitules all fine hairs. 

 On the body are many small conical spines, which are most 

 numerous on the last two abdominal segments. 



Larva free, active, red in colour, flattish, elongated, tapering 

 to the abdominal extremity; length, about ^in. Body seg- 

 mented; anal tubercles two, conspicuous, setiferous, with some 

 hort hairs. Antennae of six joints ; feet normal. 



Adult male red, about -g^in. long ; wings rather narrow, 

 hyaline. Antennae ten-jointed, hairy. Feet normal. Abdomi- 

 nal spike short, thick, and accompanied by a curved appendage ; 

 -at each side a tubercle bearing longish setae. 



Habitat In crevices (and sometimes on surface) of bark of 

 Hoheria angustifolia, on hills above the town of Lyttelton. About 

 midsummer individuals may be found which have just completed 

 their sac and have not yet become coated with the black fungus. 



The pegtop form and the four anal tubercles of this insect 

 -distinguish it from all others of the genus. 



06. ERIOCOCCUS MULTISPINUS, Maskell. 



Acanthococcus multispinus, Maskell; N.Z. Trans., Vol. XI., 

 1878, p. 217; Vol. 'XII., 1879, p. 292; Vol. XVII., 



1884, p. 29. 



(Plate XV., Pig. 1.) 



Sac of adult female yellow, felted, elongated-oval. Length, 

 about ^\jin. Abdominal extremity open. 



Sac of male similar to that of the female. 



Adult female pinkish in colour, elongated-oval, convex, filling 

 the sac, shrivelling at gestation ; segmented, segments not con- 

 spicuous. Length, about ^-in. Anal tubercles brownish, con- 

 spicuous, setiferous. Anogenital ring small, with eight fine hairs, 

 which are often glued together by cottony secretion, forming 

 .a pencil between the tubercles. Antennae of six joints. Feet 



