103 



Male puparium (c) brownish-white, narrow, semi-cylindrical ; 

 pellicle yellow. Length, -^-^ inch. 



Adult female (d) of the usual elongated form of the genus, the 

 cephalic region smooth, the abdomen with conspicuous segments ; 

 colour brown. Length, about -^ inch. The abdomen (e) ends 

 in two median lobes with at each side a few spines ; pygidium 

 exhibiting five groups of spinnerets, but only two or three in 

 each group. 



The larva (/) is of the normal form of the Diaspid group, but 

 the rostrum, as shown in the figure, appears to be abnormally 

 large. 



Habitat. — On Eucalyptus (various), South Australia. 



This insect approaches very nearly C. euonyini, Comstock (Re- 

 port of the Entomologist, U.S. Dept. of Agric, 1880, p. 313),. 

 especially in the small number of spinnerets in the groups ; but it 

 difiers in colour in the lobes of the abdominal extremity, and in 

 the absence of a "ventral scale" in the puparium. 



Group — Lecaxidin^e. 



subdivision lecanid.e. 



Genus— Pulvinaria, Targioni. 

 Female insects naked, arboreal, constructing a cottony ovisac ; 

 exhibiting an abdominal cleft and dorsal lobes at all stages. Male 

 pupse in cottony or waxy tests. 



Pulvinaria jiavicans, sp. no v. Plate xii., fig 3. 

 Adult female (figs. 3 and a), yellowish-brown in colour, not 

 globular or gall-like, but slightly convex, rugose ; outline sub- 

 elliptical ; naked, but producing a quantity of white cotton, 

 which surrounds its edges, looking like a cushion on which the 

 insect reposes ; but on turning it over the ventral surface is 

 seen to be bare, so that the insect rests rather on a ring of 

 cotton. General form normal of the Lecanid group, exhibiting 

 the abdominal cleft and dorsal lobes, but the cleft (6) is shallow 

 and wide. Round the edge of the body is a row of spines, short 

 and not very close together. Antennae of apparently eight joints 

 (c), but the division shown in the figure at c may be a " false joint," 

 as in some other Lecanidae, and the antenna may have really 

 seven joints. Assuming eight as the number, all the joints are 

 sub-equal in length, with a few short hairs ; on the last joint is 

 one hair about three times as long as the others. Feet {d and e) 

 with somewhat thick femur, the tibia and tarsus slender ; upper 

 pair of digitules, with long, fine, knobbed hairs, lower pair 

 rather longer than the claw, and slightly dilated at the tips. 

 Anogenital ring (f) with many hairs. Rostrum short and thick : 



