110 Mr. A. Hempel on Brazilian Coccidas. 
Bibionide. 
Plecia dorsalis, Macq., Dipt. Exot. i. p. 86 (1838). 
Three females from Pretoria (W. L. D.). 
Hippoboscide. 
Hippobosca rufipes, Olfers, De Veget. et Animat. corp. in 
corpor. animatis reperiundis, Berol. 1816, p. 101; 
Wiedem., Auss. zweifl. Ins. 11. p. 604 (1830) ; Schiner, 
Reise Novara, p. 372 (1866). 
Hippobosca maculata, Macq., Suites @ Buff. ii, p. 638. 
Hippobosca Wahlenbergiana, Jaennicke, Abh. Senck. Gesell. vi. p. 406, 
pl. xliv. fig. 18. 
Four specimens from Pretoria (WW. L. D.) and Barberton 
(Rendall). 
XVI.— Descriptions of Brazilian Coccide. 
By AvotpH HemPeL, 8 Paulo, Brazil. 
[Continued from vol. vi. p. 398.] 
Genus Puenacoccus, Cockerell. 
Phenacoccus spiniferus, Tempel. 
Adult female oval in form, not very convex; pinkish, 
both surfaces dusted with a white powder; about thirty-six 
short white tufts around the lateral margin; four anal tufts 
are slightly longer than the others. 
Parasitized females become cylindrical in form and the 
derm becomes chitinized. The marginal tufts are slightly 
longer on the posterior margin than on tlie rest of the body. 
Antenne of nine joints, joint 3 the longest. Length of 
antenne varying from °50 to *53 millim. Approximate 
formula: 3 (1 2) 9786 (45). Length of the segments of 
the antenne: (1) 67, (2) 67, (3) 71, (4) 42, (5) 42, (6) 45, 
(7) 53, (8) 49, (9) 64. All antennal segments bear hairs. 
Legs ordinary, not bearing many hairs. Length of seg- 
ments of first pair of legs: femur, with trochanter, 292 ; 
tibia and tarsus 312. Claw short; digitules large, with 
expanded ends. Tarsal digitules hair-like, with buttoned 
ends. Eyes small, conical. Rostrum short, about as wide 
as long, bearing two hairs. Mentum dimerous, with 
