60 



E. ERNEST GREEN. 



a point just above the median lobes. Circumgenital glands in five groups : median 

 group 3 to 5 (average 4), upper laterals 7 to 12 (average 10), lower laterals 8 to 12 

 (average 8). Dorsal oval pores very few on the pygidium ; groups of smaller pores 

 on lateral margins of abdominal and metathoracic segments. Length 1 to 1*5 mm. 



On foliage of Melaleuca hueadendron. Koolpiniyah, N.T. (Hill, 18), and Stapleton, 

 N.T. (Hill, 88). 



The only other Diaspid that has median lobes of a form at all resembling those of 

 this insect is Aspidiotus acaciae. 



Lepidosaphes hemichionaspiformis, sp. nov. 



Puparium of female2(fig. 7, d) translucent white, pellicles pale stramineous ; 

 elongate, narrow ; lateraFmargins flattened. Average length 2 mm. 



Male puparium (fig. 7, c) similar^but smaller ; without flattened margin. Length 

 approximately 1 nmi. 



Fig. 7. Lepidosaphes hemichionaspiformis, sp. n. ; a, pygidium 



of adult female, X 280 ; b, posterior margin of 



pygidium, X 450 ; c, male puparium, X 20 ; 



d, female puparium, x 20. 



Adult female elongate, broadest across abdominal area. Lateral margins of 

 abdominal segments moderately protuberant. Posterior extremity rather acutely 

 pointed. Pygidium (fig. 7, a, b) with a single prominent median lobe, the outer 

 margin of which is sinuous. This undivided lobe simulates the closely contiguous 

 median lobes of certain species of Hemichionaspis. A small but conspicuous para- 

 physis on each side, near the extremity, and a densely chitinous cuneiform ingrowth 

 from a small prominence at a short distance further up the margin. What appears 

 to correspond with the usual tubular squames are — in this species — flattened ; 



