212 Mr. A. Hempel on Brazilian Coccidse. 



small patches of wax, giving the insect a rough grey appear- 

 ance, like a scar or bud. The cells or reticulations are 

 small, red in colour, the partitions being thick and black. 

 On the ventral surface the derm is chocolate-brown. The 

 opening of the cavity containing the eggs is small, 1*75 

 millim. wide, and nearly square. There is a narrow white 

 fringe of secretion around the ventral margin. A white 

 patch remains on the bark when the insect is removed. 

 Length 5 millim. ; width 4 millim. ; height 1"25 millim. 

 Anal cleft 1 20 millim. long, sides contiguous. Boiled in a 

 solution of KOH it colours the liquid dark red. The dorsal 

 derm remains thick and brown. The central portion is 

 composed of large, irregular, oval glands, with a small sub- 

 circular hyaline spot near one end, while near the margin 

 there is a border composed of four or five rows of smaller 

 subcircular glands. The hyaline spots in these glands are 

 apparently the openings. The outer portion of the ventral 

 derm is chitinized, forming a border about 1 millim. in 

 width. 



Antennae slender, of seven joints. All the joints except 

 joint 3 bear hairs, joint 2 bearing one long one. Length of 

 antennae about 'SiO millim. Approximate formula : 4 (I 2 

 3 7) 5 6. Length of joints : (1) 44, (2) 44, (3) 44, (4) 93, 

 (5) 36, (6) 31, (7) 44. Legs short and thin, varying in 

 length. Tarsus and claw as long as the tibia. Average 

 length of joints of the first pair of legs: coxa 93, trochanter 

 with femur 164, tibia 102, tarsus and claw 102. The coxa 

 bears a short spine on the proximal end ; the coxa and tro- 

 chanter each bear a long terminal hair on the distal end. 

 Tarsal digitules very long and slender, with expanded ends 

 (53 fi long). Digitules of claw large, unequal in size, with 

 expanded ends. Rostrum small, situated between the inser- 

 tion of the second pair of legs. Mentum monomerous, with 

 bifid end, bearing eiglit hairs. Rostral loop short. Spiracles 

 small. Around the lateral margin there is a row of short, 

 sharp, thick spines, placed at intervals of about 111 fj, apart. 

 Anal plates small, with the outer angle rounded and the 

 antero-lateral side longer than the postero-lateral. 



Hab. Ypirauga, State of S. Paulo. On branches of 

 Zanthoxylum sp. Situated on the bark, where it resembles 

 the leaf-scars and buds so closely as almost to escape notice. 



Lecanium infrequens, Hempel. 



Adult female large, dark brown, irregular in outline, 

 dorsum convex, sometimes with small patches of white wax. 



