Maskell. — On Coccidse. 41 



of Podocarpus from Japan, which are of a good deal deeper red 

 than the type. 



In the United States "Agricultural Bulletin," No. 23, 

 1891, Mr. Coquillett mentions, under the name of " the yellow 

 scale, Aspidiotus citri?ms," a form which, from careful examina- 

 tion of specimens sent to me by Mr. Ehrhorn, of Santa Clara 

 County, California, I find are clearly only A. aurantii. Mr. 

 Ehrhorn informs me that he and Professor Comstock and 

 several others have come to the same conclusion. I am sorry 

 that a distinction founded on so slight a character as mere 

 colour should be so often suggested. No scientific description 

 of this form has yet appeared, that I know of. 



Aspidiotus extensus, sp. nov. Plate L, figs. 4, 5. 



Female puparium of a dull dirty-yellow or brown colour, 

 frequently obscured by black fungus, subcircular, convex, and 

 usually somewhat conical; diameter, about ^in. at full de- 

 velopment. The larval pellicle is black, situated at the apex 

 of the cone ; the second pellicle is very inconspicuous, and it 

 is difficult to make out its dimensions, but close examination 

 shows that it occupies about half the puparium. The surface 

 of the puparium is finely striated. 



Male puparium subcircular, of a grey or bluish-grey 

 colour, rather convex, but less so than that of the female. 

 The pellicle is less black than in the female, and is not placed 

 centrally. Diameter of puparium about -go" 1 - 



In all the specimens seen the female puparia were on the 

 twigs, the male puparia on the leaves. 



Adult female dark-brown, pegtop-shaped, with a distinct 

 prolongation of the abdominal region, by which the abdominal 

 margin is slightly concave. The size varies : specimens seen 

 range in length from g 3 o m - ^° iV n - ^ ie prolongation of the 

 abdomen bears two median lobes, set so closely together as to 

 look like one, their outer margins sloping, and minutely ser- 

 ratulate ; beyond these the abdominal margin is irregular, and 

 bears some rather strong spines and cylindrical processes 

 blunt at the tips, and there is a longish spiny hair at the 

 innermost point of the concavity of the margin. There are no 

 groups of spinnerets. 



Adult male dark-brown ; form rather stout and thick ; 

 length (exclusive of spike) about g^in. ; the spike is about as 

 long as the abdomen. Antennae and feet normal. There 

 seem to be two dorsal eyes, two ventral, and two ocelli ; but 

 my specimens are not clear as to these. 



Hab. In Australia, on Eztcatyptus capitellata. My speci- 

 mens were sent by Mr. Froggatt, from Bankstown, near 

 Sydney ; and I have also two, which seem to be quite similar, 

 on the same plant from Victoria, sent by Mr. French. 



