Maskell. — On Coccididas. 227 



Genus Gossypakia, Signoret. 



Adult females lying on a cushion of cotton, the dorsum 

 exposed. Characters of Acanthococcldce ; retaining feet and 

 antennas. 



Gossyparia casuarinse, sp. nov. Plate XIV., figs. 12, 13. 



Adult female brown, varying from light to dark, elongated, 

 convex, elliptical, resting on a cushion of grey cotton which 

 leaves almost the whole insect exposed. Length about join. 

 Antennas of six joints, of which the third is the longest, the 

 fourth and fifth the shortest. Feet with the tarsus longer than 

 the tibia (a frequent character in Acanthococcldce) ; all the 

 digitules are fine hairs. Anal tubercles conspicuous. Mentum 

 dimerous. On the margin of the body a row of slender spines, 

 not very close together. 



Female of second stage not observed. 



Larva brown, fiattish, elliptical. Length about ^in. 

 Antennas of six joints. Anal tubercles large and conspicuous. 

 Margin of the body bearing a row of strong spines, slender, 

 with tubercular bases. These spines are smaller on the 

 thoracic than on the abdominal segments, and increase in 

 length as they approach the extremity. 



Male unknown. 



Hab. In Australia, on Casuarlna sp. Specimens from Mr. 

 Koebele, from Sydney. 



The cushion of grey cotton in this species is more scanty 

 than is usual in the genus, almost the whole insect being 

 exposed instead of only the dorsum, as is ordinary. A dis- 

 tinctive character of the larva appears to be the varying length 

 of the marginal spines from the cephalic to the abdominal 

 regions. 



Gossyparia confiuens, sp. nov. Plate XIV., fig. 14. 



Adult females excreting a quantity of white cotton, with 

 sometimes a yellowish tinge, aggregated in a mass on the 

 twigs of the plant, and not entirely covering each insect, so 

 that the twig looks as if covered with a honeycombed incrus- 

 tation, in the interstices of which the bodies of the insects 

 can be perceived. Insect dark-red in colour, subelliptical, 

 convex. Antennas of six joints, the first three of which are 

 the longest and subequal, the last three short and subequal. 

 Feet rather long ; tarsus nearly one and a half times the 

 length of the tibia. Anal tubercles conspicuous. Body 

 covered with numerous slender spines. Mentum dimerous. 

 Anal ring with eight hairs. 



Larva and male not observed. 



Hab. In Australia, on Eucalyptus sp. Specimens from 

 Mr. Koebele, from Sydney. 



