THE VICTOKIAN NATUKALIS'l'. 



wise normal. Rudimentary antenna with 4 stout bristles, 2 of 

 them considerably largt;r than the others. Anterior spiracles 

 each with a large group of parastigmatic glands. A dorso-lateral 

 series of 4 or 5 stout chitinous spines on each side, situated at 

 the junction of the meso- and metathorax, and following three 

 or four intersegmental divisions (see fig. 5). Occasionally one or 

 more of the spines are duplicated, and those nearer the pygidium 

 tend to become smaller and marginal. Median lobes of 

 pygidium large and prominent ; free edge minutely denticulate, 

 and sloping from each side to a blunt point ; base constricted. 

 First lateral lobes duplex, prominent inner lobule largest and 

 bluntly pointed, outer lobule somewhat sharply pointed. Second 

 lateral lobe broad, inconspicuous, scarcely projecting beyond 

 margin, its free edge minutely serrate. Circumgenital glands in 

 five groups — median group 4 to 7, upper laterals 1 1 to 14, lower 

 laterals 12 to 15. Anal orifice at base of pygidium, anterior to 

 circumgenital glands. Length, 1.25 to 1.75 mm. 



Habitat. — On Cassinia acideata, R. Brown. Myrniong, Vic- 

 toria. (No. 62.) 



Mytilaspis (Coccomytilus) hymenanther^, sp. nov. (fig. 6). 



Female puparium reddish-brown, more or less covered by 

 fibres of the bark upon which it rests. Pellicles reddish, the 

 second completely concealed. Moderately convex ; rather 

 broadly dilated, expanding abruptly behind the first pellicle. 

 Length, 2.50 to 3 mm. 



Male puparium not observed. 



Adult female oblong oval, narrowed in front, broadest across 

 median abdominal region. Lateral margins of abdominal 

 segments produced into rounded lobes. Pygidium broad ; 

 median lobes very large and prominent (fig. 6), the sides sloping 

 steeply from a median point ; first and second lateral lobes 

 small, simple, pointed. Spiniform squames {fusi piliformes of 

 Leonardi) strongly developed, decreasing in size as they approach 

 the extremity of pygidium. No circumgenital glands. Some 

 conspicuous oval i)ores on dorsal area of pygidium and margins 

 of abdominal segments. Length, 1.25 to 1.75 ram. Greatest 

 breadth, i mm. 



Habitat. — On stems and twigs of IlymenaiUhera banksii, 

 F. v. M. Myrniong, Victoria. (No. 63.) 



Very close to M. leptosperuii, Mask. ; but easily separable by 

 the absence of circumgenital glands, and the proportionately 

 larger median lobes. 



Mytilaspis intermedia, var. victoria, n. var. 



Mytilaspis intermedia, Mask., "Trans. N.Z. Inst." 1890, 

 page 7 ■■, Leonardi, " Gen. e. Spec. d. Myiilaspides," page 79. 



Differs from type in the following particulars; — Lateral margins 



