68 Mr. A. Hempel on Brazilian Coccide. 
a double row of conical spines, thickly set, especially on the 
sides. On the anterior margin the row of spines becomes 
simple and also bears a few long hairs. On the posterior 
margin there are few spines, but more long hairs. ‘There is 
also a row of short hairs on the ventral surface, just inside 
the row of spines. The derm bears many minute glands. 
Hab. Ypiranga. On the bark of Maytenus sp. 
This species is accompanied by a large ant, Camponotus 
sp., that constructs a covering of grass or earth around the 
twigs upon which the insects are massed. A small lepido- 
pterous larva also preys upon it, and appears to be very 
destructive. 
Ceroplastes rotundus, Hempel. 
Adult female scale oval in outline; dorsum convex, 
rounded. Wax smooth, thin, hard and brittle, divided into 
seven distinct plates, light buff in colour, with brown lines 
between the plates. Caudal plate with two nuclei. Dorsal 
nucleus oval, large, the others small and nearly square, all 
dark brown in colour, with a small patch of white secretion in 
the centre. All the plates have minute radiating lines from 
the nuclei and concentric rings, giving them the appearance 
of fish-scales. Length 5 millim.; width 4 millim.; height 
3°50 millim. Denuded of wax the insect is brown, derm 
chitinized, caudal horn small, not darker than the derm; no 
apparent humps are present. 
Antenne variable, of seven joints, all except joint 3 bearing 
hairs. Length 330-348 millim. Length of joints: (1) 44, 
(2) 44, (3) 53-57, (4) 89-97, (5) 29-31, (6) 31, (7) 40-44. 
Approximate formula: 4 3 (1 2 7) (6 5). Legs ordinary. 
Length of joints of first pair of legs: coxa 97, trochanter and 
femur 178, tibia 114, tarsus 97, claw 20, digitules of 
claw 35. ‘Tarsal digitules very long and slender, with ex- 
panded tips. Digitules of claw large, with widely expanded 
tips. Anal ring apparently with six hairs. Rostrum situated 
between the first and second pair of legs; rostral loop short, 
extending beyond the second pair of legs. Hach stigmatal 
area is characterized by about twenty-five conical spines and 
a few round spinnerets. The lateral margin bears a few 
tuberculate hairs. The derm bears many small glands. 
flab, Ypiranga, State of S. Paulo. On twigs of Maytenus. 
Ceroplastes simplex, Hempel. 
Adult female scale oval, convex, slighly depressed around 
the dorsal nucleus; greyish white in colour. ‘he dorsal 
nucleus alone is visible, and is small, elliptical, aud pure 
