Maskell. — On Coccididge. 55 



may be frequently seen small quantities of white cottony 

 fibres. 



Adult female dark-red, globular : diameter about xjyin. Feet 

 and antennaj entirely absent. Kostrura moderate ; mentum 

 short, thick, monomerous. Abdomen prolonged in a thick 

 cylindro-conical process, which frequently appears as if formed 

 of three segments, the basal one short and broad, the next 

 cylindrical, the terminal one more or less conical, and bearing 

 at the end the anogenital ring surrounded by small lobules and 

 many strong hairs ; two of these lobules are rather larger thaii 

 the rest, and may answer for the anal tubercles. A little above 

 the base of the abdominal process is one very large strong 

 spine. On the thoracic region, nearly as high up as the ros- 

 trum, are two rather thick protruding cylindrical tubes, each 

 ending in an orifice fringed with short hairs ; the central tube 

 leading to this orifice appears to bear a number of excretory 

 glands, and the whole organ is probably employed in the pro- 

 duction of the resinous matter or lac. X large compound 

 spiracle is situated near the base of each tube. Epidermis 

 bearing a good many, but not crowded, small circular spin- 

 nerets with minute spiny hairs ; and in various parts of the 

 cephalic region are little groups of small subcylindrical tubes : 

 probably from all of these are produced the cottony fibres 

 mentioned above. 



Second female stage not observed. 



Larva red, flattish, active ; length about -gTjin. Body end- 

 ing in two short, but thick and conspicuous, divergent anal 

 tubercles, each bearing about four strong short spines ; and 

 between the pair is a large compound anal ring, which ap- 

 pears to have six hairs. Antennae slender, irregular, with five 

 joints, of which the second is cylindrical ; the third and fourth 

 about half as long as the second ; the fifth slender, irregular, 

 as long as the second, and bearing some short hairs ; the 

 fourth joint, which is very widely dilated, bears two excessively 

 long hairs. Feet long and very slender : tibia slightly longer 

 than the tarsus ; digitules four long fine hairs. Mentum 

 monomerous. 



Male unknown. 



Hah. In Australia, on Melaleuca uncinata and Eticalyptus 

 sp. (sent by Mr. French), and on Melaleuca xmstulata and 

 Aster axillaris (sent by the late Mr. Crawford). 



All the species of Carteria are peculiar. The present 

 insect differs from C. lacca in its globular form, and from the 

 two American species in the position of the two lac-tubes and 

 the structure of the abdominal process. It is perhaps nearest 

 to G. mexicana ; but I find no mention of the larva of that 

 species for comparison. The resin or "lac " of C. melaleucos 

 is readily soluble in alcohol. 



