Tlie Coccidae of South Africa. 
129 
a different insect, but the other characters agree so well that I do not think 
this is the case. 
The antennae are normally 7-jointed, but a very small percentage of 
the specimens have 8-jointed forms, while some individuals show 7- and 
8-jointed forms together. 
The range of variation for the normal form is as follows, from 25 
insects :— (1) 38-48 ; (2) 38-50 ; (3) 24-31 ; (4) 32-44; (5) 27-32 ; (6) 34-40 ; 
(7) 80-92 ^. 
The usual 8-jointed form approximates :— (1) 44 ; (2) 44 ; (3) 28 ; (4) 20 ; 
(5) 12; (6) 27; (7) 37; (8) 85 ^i. 
One specimen, apparently abnormal, had antennae which measured : — 
E. 37 34 20 11 11 17 30 71 
L. 37 34 20 12 17 23 34 72 
The legs are comparatively constant, and measure approximately : — 
I. 
44 
81 
200 
47 
115 
30 
102 
II. 
48 
98 
220 
51 
128 
32 
102 
III. 
51 
102 
228 
51 
145 
32 
102 
Setae of anal lobes : To 300 ^ in length. 
Setae of anal ring : To 154 ^ in length. 
Setae of penultimate segment to 288 fx long. 
Collection Nos. : 59 and 59a. 
28. PSEUDOCOCCUS TRANSVAALENSIS Sp. n. 
(Plate XIX., Fig. 25.) 
Adult 2 2 enclosed in elongate sacs attached to the roots of plants. 
In a few cases two females were found in the same sac. 
Ovisacs elongate, white, more or less cottony, 3*5 mm. long and about 
1-6 mm. broad, adherent to the roots to a depth of 15 to 18 inches in 
the soil. 
Larvae : Yellowish in colour, of the usual type. 
Adult 2 : Purplish in colour, about 2 mm. long, with a slightly waxy 
secretionary covering. When seen alive it is somewhat narrowed pos- 
teriorly, and has no lateral but two stout caudal filaments. The colour in 
boiling KOH is black and then violet. Cleared, stained, and mounted the 
insects average 2 mm. long by 1*5 mm. broad. 
The antennae are normally 7- or 8-jointed, but occasional examples 
are found with 6-jointed forms, in which joints 3 and 4 are more or 
less fused. 
The range of variation in the segments is as follows : — 
{a) 8-jointed form :— (1) 34-40; (2) 35-40; (3) 17-24; (4) 9-13; 
(5) 13-18 ; (6) 17-22 ; (7) 22-28 ; (8) 68-75. 
10 
