388 Transactions. — Zoology. 



Mytilaspis pallens, Maskell, 1889, var. alba, var. nov. 



Puparium of female snowy - white, elongated, narrow; 

 length about ^m. Pellicles terminal, pale-yellow. 



Puparium of male similar to that of female, but smaller ; 

 not carinated ; length about ■g'bin. 



Adult female as in the type. 



Adult male not observed. 



Hab. In Australia, on XanthorrJicea sp. My specimens 

 were sent by Mr. Froggatt, from Sydney. 



I see nothing but the whiteness and the slightly larger size 

 of the puparia to separate this from the type. 



In my original description I mentioned as the food-plant 

 of this species " a kind of fan-palm." I now liud that the 

 pieces sent were Xanthorrlicea : their triangular form misled 

 me. 



Mytilaspis banksise, sp. nov. Plate XIX., figs. 3-5. 



Puparium of female dull-rusty-buff-coloured (similar to the 

 underside of the leaf) ; convex, broadly pyriform and short ; 

 pellicles dull - red, usually covered by a thin scale of rusty 

 secretion, which, however, is frequently rubbed off. Length 

 of puparium about ^^m. Many puparia are almost sub- 

 elliptical. 



Puparium of male similar in colour to that of the female, but 

 much narrower and more cylindrical ; not carinated ; length 

 about J^in. 



Adult female dark-red, the median dorsal region sometimes 

 yellow. Porm normal of the genus, but frequently so much 

 shortened as to be almost globular ; the proper length is about 

 ■g^gin. Abdomen ending in six lobes, of which the two median 

 are the largest, the outer ones the smallest. The median 

 lobes are not quite adjacent ; their sides are straight, the ends 

 obliquely emarginate. The second pair are deeply incised on 

 the outer edges ; the third pair are bidenticulate. Between 

 the lobes the margin has deep semicircular depressions with 

 thickened edges, and beyond the lobes the margin is broken 

 by many serrations. There are a few short scaly hairs be- 

 tween the lobes, and on the marginal serrations there are- 

 many others larger and longer ; all these hairs have deeply- 

 serrated ends. Five groups of spinnerets : upper group with 

 8-10 orifices; upper laterals 20-22, lower laterals 20-22. 

 There are a great many dorsal spinnerets on all the segments 

 as high as the rostrum, and on the anterior cephalic region 

 are some short fine hairs. 



Adult male dark-red ; length (exclusive of the spike) about 

 (jigin. ; the spike is about half as long as the body. The feet, 

 antennae, kc, present no special features. 



Hah. In Australia, on Banksia integrifolia. My specimens 



