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OBSERVATIONS ON SCALE-INSECTS (COCCIDAE)— V. 



By Robert Newstead, F.R.S., 

 The School of Tropical Medicine, The University, Liverpool. 



Aspidoproctus armatus, Newst. 



Portuguese Congo: San Salvador; on tree of unknown species (Dr. Merrier 

 Gamble). 



Aspidoproctus ?glaber, Lind. 



Xvasaland : Mlanje ; on " mwanga " tree, x.1913 (S. A. Neave). 

 A small undersized female, unfortunately imperfect. I have placed it here, as it 

 agrees, apart from its size, with Lindinger's description. 



Aspidoproctus pertinax, Newst. 



NyAwSaland : Mlanje ; on " kalati " tree, x.1913 (S. A. Neave). 



Female, young adult : Broadly ovate and highly convex above ; covered w r ith a 

 relatively thin layer of very pale yellowish-buff secretion, which is somewhat granular 

 in texture. Margin with a closely set series of large waxen rectangular appendages, 

 a few of which are completely divided longitudinally ; dorsum, in the middle line, 

 in front with three pairs of short blunt waxen processes, each surrounded by a fringe- 

 like series of relatively large, granular pieces of wax. Midway between the short 

 dorsal series of processes and the margin is another complete row of tooth-like pro- 

 cesses, all of which have a granular fringe. Length 7*5 mm. 



The above description was drawn from a specimen which had been preserved in 

 alcohol. Fortunately Mr. Neave collected examples which show the intermediate 

 stages between the quite young adults and the fully matured female, so that there 

 can, I think, be no doubt as to the specific identity of his specimens. 



Aspidoproctus ? pertinax, Newst, 



South India: Bangalore, Lai Bagh ; on a wild plant, vi.1908 (T. V. Rama- 

 Is rishna, per E. Ballard). 



A single and apparently young adult female, which differs externally from typical 

 African examples in having the posterior marginal processes slightly longer and so 

 arranged that they partly overlap. The larvae are inseparable from the cotypes of 

 A. pertinax in the author's collection. More material is needed for an exact specific 

 determination of the adult female. 



Aspidoproctus ?tricornis, Newst. 



Nyas aland : Mlanje; on " mwanga " tree, x.1913 (S. A. Neave). 



A single immature female which apparently belongs to this species. It differs 

 from the adult in having three relatively small, dorsal, horn-like processes, of which 

 the median one is much the longest and faintly bifid at the tip. Marginal tubercular 

 projections bifid along the abdominal area ; the flat tooth-like appendages arising from 

 these are, when present, well separated and divergent ; some of the appendages 

 on the thoracic margin are broad and flat, with truncated ends ; the four cephalic 

 ones bluntly rounded, and with more or less pointed processes. 



