The Coccidae of South Africa. 
167 
^ with two short caudal appendages to the abdomen. (In I. purchasi 
the caudal appendages are one-eighth as long as the body.) 
^ with compound eyes. 
49. ICERYA EUPHORBIAE, Sp. n. 
(Plate XXV., Fig. 56. Plate XXVI., Fig. 60.) 
Adult 2 : With waxy secretion the adult $ is similar in size to 
I. seychellarum, but differs in appearance chiefly in the following 
particulars : — 
(a) The insect is viviparous and forms no ovisac. 
(b) The waxy secretion is not divided into distinct masses, but appears 
rather to be covered with a more or less homogeneous membrane of w^axy 
secretion which at maturity breaks away at the margins and posterior end. 
At these points there are indications of definite waxy masses. 
The colour of the secretion is generally uniformly white, but in a few 
instances the covering layer shows faint indications of yellow. 
The body-colour, denuded of wax, is orange-red. 
Cleared and mounted the adult ? averages 8 mm. long. The dermis 
is characterized by pale hairs, long and short, and numerous small gland 
pores. These pores have the margin beaded and the pore itself triangular. 
There are no large circular beaded pores like those found in seychellarum. 
The antennae, which are 11- jointed, are long and densely chitinized. 
They are thick at the base and gradually diminish in thickness towards 
the apex. The basal joint is comparatively short ; joint II. is thick and 
long (110 ^), with a large basal rounded protuberance on its outer edge ; 
joint III. is about as long as II., cylindrical ; joint IV. to X. subequal 
(50 to 60 }i) ; XI. long (150 fx). 
S puparium : "Length 3 mm., width 2 mm., and 1-5 mm. high ; 
elongate oval, very convex, flat beneath, formed of red matter and exuviae 
covered with white meal : open behind." (Fuller, notes 1898.) 
^ : (From specimens mounted by Claude Fuller, 1898) The mounted 
insect is a large, striking creature with dark red body, smoky brown 
wings, and long delicate antennae. The head and body, without antennae, 
measure about 3-3 mm. The greatest width is across the mesothorax 
(0-9 mm.). The abdominal segments taper gracefully from 0'7 mm. for 
segment I. to 0'3 mm. at the terminal segment. The caudal processes, 
without the setae, measure 0*35 mm. Apically they bear a number of long 
setae, many of which are about 1 mm. in length. The wings are about 
the length of the head and body combined, the average total width across 
expanded wings being about 7'5 mm. 
The antennae, which are about 3 mm. long, are 10-jointed. Each 
