396 Mr. A. Hempel on Brazilian Coccidae. 



equalling femur in length; claw small, with the digitules 

 short and slender, with buttoned ends. Tarsal digitules 

 slender, scarcely reaching to the tip of the claw. Rostral 

 loop very short. Anal ring with six hairs. The two anal 

 tubercles are inconspicuous, but each one bears several hairs 

 and a number oi' small triangular glands and about 15 short, 

 thick, sharp spines. On the dorsal surface of the body near 

 the lateral margin there are about 32 groups of glands and 

 spines, each group consisting of from 8 to 12 small trian- 

 gular glands or spinnerets and from 5 to 8 short sharp spines. 

 The lateral margin is also fringed by a number of short 

 hairs. Dorsal surface of body bears many small triangular 

 glands and short sharp spines, placed singly, apparently in 

 transverse rows. The ventral surface of body bears glands 

 and many small hairs. 



Young (just hatched). — Elliptical, yellow; eyes small, 

 conical, dark brown. Antennae 6-jointed, joint 6 being the 

 longest, equalling joints 3, 4, and 5. Hostral loop long, 

 nearly extending to the anal ring. Legs long, claw slender, 

 digitules of claw and tarsus long and fine, buttoned. Anal 

 tubercles inconspicuous, each bearing a terminal seta. 

 Around the margin of the body theie are short sharp spine3, 

 while each of the last two abdominal segments bears two 

 spines on each side. Length "45 millim. 



Bab. Ypirauga. On leaves and twigs of a plant of the 

 fam. Myrtaceae. 



Dactylopius setosus, Hempel. 



Adult female elliptical, flat, orange-red in colour; legs and 

 antenna? yellowish. Thorax and abdomen transversely 

 wrinkled; the abdomen ends in two stout sharp filaments of 

 white secretion, while both surfaces of the body are dusted 

 with a white powder. On the dorsum there is one median 

 row and on each side a sublateral and a marginal row of 

 long glassy filaments, which stand out in all directions and 

 give the insect a bristly appearance. Largest specimens 

 5 millim. long and 2*75 millim. wide. 



Antennae usually 8-jointed, although sometimes joints 3 

 and 4 are united into one ; slender, joints 4-7 slightly ex- 

 panded at the distal end. All of the joints bear hairs. Joint 

 8 the longest. Approximate formula: 8 3 (2 1) 5 4 (6 7). 

 Antennas varying in length from '60 millim. to "70 millim. 

 Average length of antennal joints: (1) 89, (2) 89, (3) 102, 

 (4)64, (5)84, (6) 62, (7) 62, (8) 133. 



Legs long, slender, with many hairs. Coxa short and 



