66 Mr. A. Hempel on Brazilian Coccide. 
width 4 millim. ; height 3°6 millim. Denuded of wax derm 
hard, brown; caudal horn black, small. There are three 
small tubercles on each side and one on the anterior end. 
Length 4 millim.; width 3 millim.; beight 2°5 millim. 
Boiled in a solution of KOH the derm remains hard and 
opaque. 
Antenne variable, of seven joints, all except joint 3 bearing 
hairs. Length 979: 307 millim. Length of joints: (1) 44, 
(2) 35-44, (3) 40-48, (4) 66-79, (5) 26-31, (6) 26, (7) 35. 
Approximate formula: 4 (812)7 (56). Legs long. Length 
of joints of first pair of legs: coxa 128, femur and tro- 
chanter 168, tibia 133, tarsus 84, claw 26, digitules of 
claw 44. ‘Tarsal digitules very long, slender, with ‘expanded 
ends. Digitules of “claw of equal size, large, with widely 
expanded ends. Rostrum situated about midway between 
the first and second pair of legs; rostral loop short, scarcely 
longer than the rostrum and mentum. Hach stigmatal area 
is characterized by about thirty conical spines and as many 
large round spinnerets. Around the lateral margin there is a 
simple row of short hairs, each tuberculate at the base. The 
dorsal derm is composed of polygonal plates and contains 
many small glands. ‘The ventral derm also bears some 
glands near the margin. 
Male scale small, ‘elongate, flat, with seven tufts of white 
waxy secretion around the margin and one elongate tuft on 
the dorsum. ‘The posterior end also bears a few threads of 
white secretion. Length 1:50 millim.; width °75 millim. 
Hub, Ypiranga. On the stem of the plant Arvgeron cuna- 
densis, L. 
Ceroplastes cuneatus, Hempel. 
Adult female scale irregularly oval in outline, truncated 
posteriorly, convex, wax coming to a blunt point on the 
dorsum, divided into seven indistinct plates. Colour creamy 
white, with light brown lines between the plates. Caudal 
plate with two nuclei. All the nuclei deep brown, with a bit 
ot white secretion in thecentre. The wax is much depressed 
about the nuclei and thickened around the margin. A deep 
sulcus runs around the dorsal plate, thus giving the surface a 
rough nodular appearance. Frequently a hood of wax is 
formed from behind over the dorsal nucleus, often partly 
covering it. Length 4°25 millim.; width 3°75 millim. ; 
height 3°25 millim. Denuded of wax the derm is brown, 
shiny, hard. ‘The lateral humps are faintly indicated, but 
not distinct. Length 3:25 millim.; width 2°50 millim., ; 
height 2:00 millim., Caudal horn very small, brown. 
