AFRICAN SCALE INSECTS (COCCIDA). 87 
Parastigmatic glands generally absent, but a single one is sometimes present at 
the anterior stigmata. Margin of cephalo-thoracic region with a few widely 
separated, and minute spines. Pygidium with five widely separated groups of 
circumgenital glands ; formula :— 
8 WW 8 
17 - 16 19 - 19 19 - 18 
14 - 13 16 - 15 15 - 15 
The last three abdominal segments with extensive groups of large dorsal 
pores; and there are three or four much smaller ones on each of the two 
succeeding segments, near the margin; fringe of pygidium (fig. 2) with three 
pairs of lobes; the median pair recessed and smallest ; second and third pairs 
duplex, margins straight ; there is a large projecting pore between the first and 
Fig. 2.—Diaspis regularis, Newst. ; margin of pygidium of adult female. 
second and the second and third pairs of lobes, and two beyond them, these 
projections are distinctly lobe-like, so much so that they may be easily mistaken 
for true lobes. There is a large simple squama just in advance of the third 
duplex lobe and two beyond the last projecting pore ; those on the free abdominal 
segments are much the largest. 
Male puparium.—Strongly tricarinate, texture close, thin and semi-trans- 
parent ; colour white, pearly white or greyish white; pellicle pale ochreous or 
colourless. Length, *75-1 mm. 
Mubendi, Entebbe, Uganda, 10. VIII. 1909 (C. C. Gowdey). Food-plant not 
stated. 
The puparia of both the males and females are all arranged with the greatest 
regularity and all pomting in the same direction upon the leaf. This is not a 
unique habit with the Diaspinar, but I do not remember having hitherto seen 
this character attained to such a marked degree in both sexes. 
The boss-like puparia of the females are very distinctive ; and the fringe of 
the pygidium is also strikingly characteristic. 
Diaspis cacti, Comstock. 
On Prickly Pear (Opuntia sp.); Marg, Egypt, “ Autumn, 1909” (F.C. 
Willcocks). 
This insect has not hitherto been recorded from Africa, though the very 
closely related Diaspis calyptroides, Costa, has been found there. 
20419 A 2 
