226 Transactions. — Zoology. 



Larva brown, flattish, elliptical ; length about ^in. An- 

 tennas of six joints. Anal tubercles distinct. 



Adult male unknown. 



Hab. In Australia, on Acacia calamifolia. My specimens 

 are from Mr. Tepper. 



In the Ent. Slo. Mag., November, 1890, I asked the ques- 

 tion, How do Coccids produce cavities in plants ? And 

 amongst other instances I mentioned a New Zealand species, 

 Ctenochiton viridis, which formed beneath it on its leaf a de- 

 pression. That insect does its work on soft leaves ; Prosopo- 

 phora acacia (as well as the next species to be described) 

 lives on twigs of very hard wood ; yet it hollows them out 

 somehow, and I cannot discover how the process is effected ; 

 for there is no swelling of the bark, or distortion of the twig, 

 or wound of the tissues noticeable in the vicinity. 



Prosopophora eucalypti, sp. nov. Plate XIV., figs. 8-11. 



Adult female covered by a test which is very closely 

 felted, but which is seen, on careful examination, to be not 

 perfectly homogeneous wax ; colour of test yellowish-brown, 

 but frequently covered with black fungus ; form subcircular, 

 flattish at the top, rather thick ; there is a small orifice in the 

 posterior region. There is a depression in the twig beneath, 

 as in the last species, filled with eggs. Diameter of test 

 about o-in. 



Test of male pupa white, or grey, or yellowish ; texture 

 more waxy than that of the female, but not solid ; anterior 

 portion smooth, posterior region transversely corrugated. 

 Length about ^gin. 



Adult female brown or red, filling the test, but shrivelling 

 at gestation. Antennas moderately long, of six joints, which 

 sometimes appears to be eight, as there are " false joints " in 

 the third and the sixth ; these two joints are consequently 

 rather the longest. Feet completely atrophied. Anal tu- 

 bercles small. Epidermis bearing great numbers of tubular 

 spinnerets and of minute figure-of-eight orifices. 



Female of the second stage brown, flattish, elliptical. 

 Length about ^in. Antennas of six rather thick joints. 

 Anal tubercles large and converging, as in the last species, 

 thus simulating an abdominal cleft. 



Larva light-brown, flattish, elliptical. Length about -^ n m. 

 Antenna?, of six joints. Anal tubercles large and converging. 



Adult male unknown. 



Hab. In Australia, on Eucalyptus sp. My specimens were 

 sent by Mr. Koebele from Whitton, New South Wales. 



The differences in the feet and antennas are sufficient to 

 separate this from the last species. 



