VOL. XIV, pp. 165-167 AUGUST 9, 1901 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



NEW AND LITTLE-KNOWN COCCID^E. I. 

 RIPERSIELLA AND CEROPUTO. 



BY T. D. A. COCKERELL. 



Ripersiella Tinsley. 



Ripersiella, Tinsley, in Cockerel], Canad. Entom., 1899, p. 274. 



Dactylopiine Cocci die with antennw of not more than six joints, placed 

 close together at the extreme anterior portion of the head. Type Ripcr- 

 ifll(i rumicis (=Riper,na runnc-fa, Maskell, Tr. N. Z. Inst., XXIV, 37). 



Prof. Tinsley had intended to give an account of this genus, but he 

 has been prevented by other duties, and at his suggestion I here set forth 

 its characters. The appearance of the species is very peculiar, and 

 anyone who has seen them alive is sure to be convinced of the validity 

 of the genus. 



Ripersiella maritima (-Ripenna maritima, Ckll., Insect Life, VII, 42) 

 and R. leucoaoma corny nearer to Riperxia than the other two species. 

 R. Kelloyyi (Ehrh. & Ckll.) from Mountain View, California, departs 

 farthest from the Ripersia type, having 5-jointed antenna 4 only about 

 75 jn long, and 15 jn apart, the second to fourth joints each about twice 

 as broad as long. 



Ripersiella leucosoma sp. n. 



9 . Perfectly, white elongated, the largest about 3 mm. long; caudal 

 lobes low and rounded, not at all prominent, with a couple of bristles 

 like those of the anal ring; abdominal segments very convex on lateral 

 margins: legs and antenme pale reddish-brown; pairs of legs about 400 

 f.i apart; hind legs about 1100 /< from end of body: hind legs with fe- 



33-BIOL. SOC. WASH. VOL. XIV, 1901, (165) 



