OBSERVATIONS ON SCALE-INSECTS (COCCIDAE) — IV. 29 



separated distally from a point near the centre of the puparium, so that the terminal 

 portion of the abdomen of the enclosed pupa is more or less exposed. The examples 

 submitted are grouped together in long narrow colonies, two or three abreast, one 

 overlapping the other with, generally, the lower half of the puparium only exposed. 

 Length, 2-2*2 mm. ; width, 1 mm. 



Pupa (fig. 19, a). With well developed wing-pads and three large anal tubercles. 

 Length, 2 mm. 



Pro-pupa. Antennae of six segments, of which the 3rd and 6th are longest, the 

 former longest of all. Stigmatic spines three, narrowly conical, the central one the 

 longest. Marginal hairs few and widely separated. Just within the margin is a series 

 of exceptionally long subcutaneous gland-tubes, which are placed rather closely 

 together. 



Gold Coast : Tamale, on Pithecolobium saman, 31 .i. 16 (C. Saunders). 



The discovery of the male puparia is of much interest. They were attached to the 

 same branch as two of the females, but were slightly separated from the latter. 



Ceroplastes lamborni, sp. nov. 



Test of old adult female. Conical, more or less vertical in front and sloping upwards 

 and forwards from the caudal process ; sides with faint traces of three stigmatic 

 plates. The four white stigmatic processes extending beyond the margin. Colour, 

 in old dried examples, dusky red-brown and somewhat oily in appearance. Texture 

 hard and almost as brittle as resin. Length, 3*5 mm. ; height, 3*5 mm. A slightly 

 larger example was also submitted, but this was imperfect. 



Female, old adult. Dorsum obconical, with a deep constriction at the base in a line 

 with the caudal process ; sides below the constriction bulging and irregular ; cephalic 

 lobe well denned. Stigmatic clefts deep, but relatively small. Caudal process very 

 short, piceous. Integument shining, dull castaneous ; the conical projection of the 

 dorsum with obscure black and more or less confluent spots. Antennae of six 

 segments, the 3rd much the longest and occasionally with a partial sub-division, the 

 length equalling the three succeeding segments ; formula : 3, 2, 6, 1 (4, 5). Legs 

 normal. Stigmatic spines small, conical and arranged in a relatively large, compact 

 group ; one of them, near the centre, is slightly larger than the rest. Dorsal pores 

 small, with a minute cylindrical external projection resembling a truncated spine ; 

 intervening spaces faintly reticulated. Marginal spines traceable only in places, 

 minute and hair-like. 



Female test, second stage. Somewhat rectangular in outline ; dorsum with a well- 

 marked and somewhat angular prominence, behind which, immediately over the anal 

 orifice, is a broad tongue-shaped plate of dull white secretion ; sides with three well- 

 defined plates ; stigmatic processes pure white and projecting considerably beyond 

 the margin, when perfect. Spaces between the plates and elsewhere translucent, the 

 colour of the sublying insect showing faintly through. Texture hard and brittle. 



Female, second stage. Elongate, narrowed and produced in front, truncate pos- 

 teriorly ; dorsum witji a strong keel or, in more advanced specimens, a fusiform 

 swelling, surrounded by a deep channel ; sides more or less vertical ; venter flat ; 

 eyes prominent ; cephalic lobe strongly produced. Stigmatic clefts well defined. 



