110 Mr. A. Hempel on Brazilian (Joccldas. 



Bibiouidae. 

 Plecia dorsalis, Macq., Dipt. Exot. i. p. 86 (1838). 

 Three females from Pretoria {W. L. D.). 



Hippoboscidae. 



Hippobosca rufipes, Olfers, De Veget. et Animat. corp. in 

 corpor. animatis reperiundis, Berol. 1816, p. 101 ; 

 Wiedera., Auss. zweiti. Ins. ii. p. 604 (1830) ; Schiner, 

 Reise Novara, p. 372 (1866). 



Hippobosca miculntn, !Macq., Suites a Buff. ii. p. 638. 

 Hippobosca Wahlenhergiana, Jaennicke, Abh. Senck. Gesell. vi. p. 406, 

 pi. xliv. fig. 13. 



Four specimens from Pretoria [W. L. D.) and Barberton 

 (Rendall) . 



XVI. — Descriptions of Brazilian Coccidae. 

 By Adolph Hempel, S Paulo, Brazil. 



[Continued from vol. vi. p. 398.] 



Genus Phenacoccus, Cockerell. 

 Phenacoccus spiniferus, tiempel. 



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 

 lono-er on the posterior margin than on the rest of the body. 



Antennai of nine joints, joint 3 the longest. Length of 

 antennae varying from "dO to *53 millim. Approximate 

 formula : 3 ^1 2) 9 7 8 6 (4 5). Length of the segments of 

 the antenn^\ (I) 67, {2) 67, (3) 71, (4) 42, (5) 42, (6) 45, 

 (7) 53, (8) 49, (9) 64. All antennal segments bear iiairs. 

 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. Eostrum short, about as wide 

 as long, bearing two hairs. Mentum dimerous, with 



