Mr. A. Henipol on lirmilinn ('occidw. 209 



aeffe. Tlie margin is serrated and bears a row of fine hairs. 

 The stigniatnl spines are in groups of three — two very short 

 and one long, J^egs ordinary; claw long, curved; digit'iles 

 of claw large, with knobbed ends. Tarsal digitules filiform, 

 long, with knobbed ends. 



Ilidi. Santa Barbara or Villa Americana, State of S. Paulo. 

 ( )n the npperside of leaves of a plant of the order Sapindaceaj. 



Lecanium ornatuniy Ilempel. 



Adult female ovate, asymmetrical; dorsum not very con- 

 vex, dark brown in colour, with a light marginal band. In 

 the old specimens the dorsal derm is hard and bears about 

 twenty-four radiating ridges around the margin and a few 

 irregular ridges on the central portion. The entire derm is 

 covered with a thin white ]>owdery secretion. Size 4 milim. 

 long, 3 millim. wide, and -ToO milliin. high. Anal cleft 

 •625 millim. long ; sides not contiguous. 



Boiled in a solution of KOH it colours the liquid light 

 brown. After boiling the derm becomes colourless in the 

 younger specimens, but remains hard and brown in the older 

 specimens. The derm has rows of peculiar round or oval 

 groups of glands corresponding to the ridges. Thus the 

 dorsum is divided into twenty-four marginal and twenty-two 

 to twenty-four central areas. These groups of glands are 

 both large and small, and each contained from ten to thirty of 

 the small ellijjtical hyaline gland-spots. The ventral derm 

 contains many large tubular glands and groups of simple 

 round spinnerets, especially near the margin. 



The antennw are variable, usually of eight joints, although 

 some individuals have antennge of seven joints. All the 

 joints bear hairs, but joints 3 and 4 are sometimes hairless. 

 Length about '330 millim. Approximate formula: 3 12 

 (4 8) 5 6 7 or 3 1 (2 -i 8) 5 6 7. Length of joints : (1) .53, 

 (2) 42, (3) iy-2, (4) 43, (5) 36, (6) 27, (7) 20, (8) 45. Legs 

 long ; trochanter with one long terminal hair. Claw small ; 

 digitules of claw twice the length of claw, with the ends 

 widely expanded. Tarsal digitules slender, with the ends 

 slightly knobbed, not extending beyond the digitules of the 

 claw. Length of joints of the first pair of legs: coxa 133, 

 femur with trochanter 244, tibiu 187, tarsus and claw 124. 

 Rostrum small, situated between the first ])air of legs. Stig- 

 mata very small. Anal ring with six large hairs. Anal 

 plates small, the two together forming a square, both outer 

 aides equal in length. The margin of the body is thickly set 

 with a double row of long and short sharp hairs, each arising 



