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NOTES ON SCALE-INSECTS (COCCIDAE).— PART I. 



By Professor R. Newstead, J. P., F.R.S., 



The Liverpool School of Tropical Medicine. 



During the past few months a large amount of Coccid material has been 

 submitted to me for identification through the Imperial Bureau of Entomology. 

 A large proportion of the species came from Uganda where they were collected 

 by the Government Entomologist, Mr. C. C. Gowdey ; smaller collections wore 

 also received from other parts of Africa, including Zanzibar ; and from 

 Barbados from Mr. John R. Bovell, Superintendent of Agriculture. Nearly all 

 of the new species which have so far come to hand are described in this paper ; 

 and records and descriptions of other species are also given where it has been 

 thought desirable to do so. 



Monophlebus raddoni, Westwood. 



Uganda : near Kakindu, Basonga, 23. viii. 11 (S. A. Neave). 



There were two males from the above-named locality, which agree in all the 

 essential details given by Westwood." These examples were accompanied by 

 another male Coccid of the same genus, but this is larger, has a brighter costal 

 stripe, and there are also slight differences in the caudal tubercles or "tassels." 

 Possibly this specimen represents a distinct species, but in the absence of females 

 I feel that it would be unwise to erect a new name for it. The example bears 

 the same data as those of Monophlebus raddoni, Westw. 



Icerya longisetosa, Newstead. 



Icerya longisetosa, Newst., Sond. Mitteil. Zool. Mus. Berlin, v, pt. 2, p. 154, 

 fig. 1 a-c (1911). 



This Coccid was described from material collected by Professor Vosseler at 

 Amani, German East Africa, in the year 1903, but the waxen covering of the 

 adult female was so badly damaged through being preserved in alcohol that it was 

 impossible to give a description of its formation. Dr. Simpson's specimens are, 

 however, in a much better state of preservation, though not so perfect as one 

 could wish them to be for descriptive purposes. I append below a description of 

 the waxen covering and the ovisac of an old adult female. 



Length, 10-14 mm. ; width, 9-10 mm. 



Dorsum thickly covered with short and more or less rounded plates which have 

 so completely coalesced as to render their true form doubtful ; submarginal 

 plates curved and narrowed distally, they average about half the length of 

 marginal ones ; the latter very stout, narrowing distally and reaching in some 

 cases a little beyond the ovisac, in others they terminate at or near its distal 

 margin ; cephalic plates enormously thick, recurved and sometimes also slightly 

 contorted. Ovisac complete and similar in texture and colour to the secretionary 

 covering and plates of the dorsum. 



* Arcana Entom., i, p. 21, pi. vi. fig. 3 (1841). 

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