154 |J"iy- 



blunt, without digitules. Near the insertion of all the legs, on the posterior side, is 

 a clear, almost circular space (? spiracles). Last five segments (fig. Id) formed of 

 brown chitinous plates, widest at the margin ; six of these, three on each side of the 

 pygidium, are more or less pointed at their apices, which terminate near the anal 

 orifice ; each plate, except the first pair, with a few rather large spinnerets of the 

 form shown at fig. le; these spinnerets slightly varying in size, and also as to their 

 number and position. The position of the anal orifice will be seen on referring 

 to the fig. Id. At fig. 1/ is shown in profile a view of the last five segments in the 

 act of extruding an egg. Pygidium (ventral aspect, fig. 1^) very small, attached to 

 the first pair of plates, consists of a very dark chitinous plate, bearing on either side 

 fSur spines of varied length, as shown in the fig. ; in addition to the plate there are 

 two very minute lobes, each bearing a spine, the lobes, however, are very difficult to 

 see in some specimens. There is a divisional line right through the centre of the 

 pygidium, on either side of which, at the inner side of the chitinous plate, are two 

 well defined, clear, rectangular spaces, the posterior margins of which are very finely 

 serrated. The dorsal aspect of the pygidium is as shown in the fig. Ih. Above the 

 pygidium are two long, angular, caudal scales, similar to those found in the Leca- 

 niincB ; immediately below the caudal scales are two very small spines. This 

 drawing (fig. Ih) was made from a specimen mounted without preparation in potash 

 and without pressure, which will account for the slight discrepancy in the outline of 

 the two figures. Long., 1 mm. ; wide, | — J mm. 



Scale (fig. 2, 2a). "White, sub-opaque and somewhat glassy, circular, or nearly 

 so ; conical, except the margins, which are broadly flattened ; radiating from the 

 apex are from six to eight (usually seven) strong ridges or carinse, which gradually 

 disappear as they near the margin, where they are often entirely wanting. Yentral 

 scale free, white, complete, sometimes having a central yellowish stain. 



Diam., 2 — 2i mm. ; high, 4 — 1 mm. 



Larva. Antennse of six joints (fig. 3), of which the last two are the longest, 

 and have one or more rather long hairs. Legs (fig. 3a) about the same length as 

 the antennae, are short and stout ; tibio-tarsal joint very faint, the former with a 

 short stiff hair at apex. The four digitules very slender. Eostrum (fig. 3b) bi- 

 articulate. Anus with a very small chitinous plate (fig. 3c), very like the portion of 

 the $ which I have termed the pygidium, on either side of which are two very 

 long and stout hairs, but whether these originate from true anal lobes I am not able 

 to determine, as I can see no trace of them. 



S unknown in any stage. 



Sab. : on Rodriguezia secunda at Eaton Hall, Chester, the seat o£ 

 His Grace the Duke o£ "Westminster, on plants freshly imported from 

 Trinidad, December, 1889, and January, 1890. Received from Mr. 

 Hand, the orchid grower, who kindly supplied a single leaf of the 

 food-plant, on the basal portion of which were many examples of this 

 pretty and interesting Coccid. 



I am very doubtful as to the position this species should occupy, 

 bearing as it does characters both of the LecaniincB and the Ooccince ; 

 of the former the anal plates, and of the latter the multiarticulate 



