210 Transactions. — Zoology. 



brown. Length of puparium about yV 11 - Frequently cover- 

 ing the leaves of the plant in immense numbers. 



Male puparium similar, but smaller. 



Adult female brown, elongated ; length about ^gim 

 Abdomen ending in a single median lobe, which is broader 

 than long, and minutely crenulated on the posterior edge ; at 

 each side of this are two small conical lobules. Margin of 

 abdomen divided into numerous minute teeth, some of which 

 have single points, while others appear to be double ; all bear 

 short hairs, forming a fringe. Spinnerets in a continuous arch 

 with very numerous orifices (more than a hundred) ; and some 

 scattered single circular spinnerets. 



Adult male unknown. 



Hab. In Australia, on Cordyline sp. Mr. Olliff has sent 

 me specimens from Sydney. 



The only other Diaspid exhibiting a broad median terminal 

 lobe is, I think, Chionas])is querciis, Comstock (Agric. Kept., 

 1880, p. 319). The two European species of Leucaspis, 

 L. signoreti and L. pini, have no terminal lobes at all. This 

 Australian insect is not to be confounded with Mytilaspis 

 cordylinidis, Mask., a New Zealand species, which it re- 

 sembles somewhat in outward appearance. Not only do the 

 greenish-brown pellicles distinguish it, but also the abdominal 

 extremity of the female. The male puparium of Fiorinia 

 stricta, Mask., is also similar in outward appearance, but of 

 course the female of that species is entirely distinct. 



Genus Chionaspis, Signoret. 

 Chionaspis brasiliensis, Signoret. Essai, p. 126. Plate XI., 

 figs. 10-13. 



Female puparium reddish-brown, flat, thin, broadly pyri- 

 form ; length about -^in. Pellicles terminal, yellowish-brown, 

 small in comparison with the rest of the puparium. 



Male puparium white, narrow, very distinctly carinated, 

 much smaller than that of the female ; length three or four 

 times the breadth. 



Adult female brown, distinctly segmented, the two last 

 distinct abdominal segments bearing a few spiny hairs. 

 Abdomen ending in two very minute aud inconspicuous lobes ; 

 the margin is crenulated, and bears at each side three or four 

 spines. Five groups of spinnerets ; upper group with 6 to 10 

 orifices, lateral groups with 14 to 20. 



Adult male very small, yellow ; length, exclusive of the 

 spike, about ^yin. ; the spike is about as long as the abdomen. 

 Antennae of ten joints, with longish hairs. Feet also rather 

 pubescent ; there seem to be only two digitules, one on the 

 claw and one on the tarsus. 



