REMARKS ON COCCIDAE FROM NORTHERN AUSTRALIA — II. 



59 



The strongly marked separation of the median lobes is a distinguishing character 

 of this species. In this respect it resembles Pinnaspis siphonodonlis of Cockerell, 

 but differs from that insect in the lateral lobe being single instead of duplex. 



I am not sure if Prof. Cockerell has adopted the name Pinnaspis to cover the 

 numerous species at present placed under Heniichionaspis, but if so, I am of opinion 

 that he is fully justified in such a course. Pinnaspis biixi (the type of the genus) 

 is clearly congeneric with Hemichionaspis aspidislrae. 



The segregation of the two forms of ptiparia (ochreous and white) is quite remark- 

 able. They are sometimes massed in large clearly defined patches that actually 

 adjoin each other without commingling. Such a marked differentiation led me to 

 doubt my original determinations, but repeated preparations have invariably shown 

 the same results — complete identity of the insects. 



Lepidosaphes incisor, sp. nov. 



Puparium of female pale brown or brownish ochreous, semi-translucent ; larval 

 pellicle paler. Pointed in front, widening gradually to near the posterior extrem ty 

 where it is broadly rounded. Median area moderately convex. Margins of hinder 

 parts broadly flattened. Average length 2 '5 mm. 



Puparium of male similar, but smaller and relatively narrower ; margins not 

 flattened. Length 1 -5 mm. 



Fig. 6. Lepidosaphes incisor, sp. n. ; pygidiiim of adult $, X 280. 



Adult female elongate, narrowed in front, broadest across the median abdominal 

 segments. Margins of abdominal segments strongly produced, especially in 

 parasitized examples. Anterior spiracles with two or three parastigniatic pores ; 

 posterior spiracles without pores. Pygidium (fig. 6) with a single median pair of 

 large prominent triangular lobes, closely approximated and set at an angle so that 

 their apices meet like a pair of pincers. Margin of pygidium with a series of small 

 prominences, each bearing a conspicuous oval pore. Tubular squames few and 

 inconspicuous, often more or less obsolescent. Anal orifice of moderate size, near 

 the base of the pygidium. Four elongate thickenings of the derm run inwards from 



