RIPERSIA HALOPH1LA. 193 



Mag., s.s., vol. vi, p. 235, figs. 1-3 (1895); 

 Coccidee of the British Isles, vol. i, p. 64 

 (1901). 



Ripersia halophila (Hardy), Cockerell ; Bull. 111. St. 

 Lab. Nat. Hist., vol. iv, p. 325 (1896). 



Adult female closely resembling Ripersia terrestris, 

 pure white, with two waxen appendages at the caudal 

 extremity. Antennas (figs. 8, 8 a) geniculated and 

 constantly of six joints; formula (1, 6), 3 (4, 5), 2; 

 all the joints have fine short hairs, and the apical joint 

 has at least two falciform spines. Legs (fig. 9) longer 

 than the antennae and very strong ; coxas supported 

 by a strong epimeron (fig. 9) which is embedded in 

 the cuticle ; tibia3 and tarsi with spiny hairs, tibiaa 

 with two spiny hairs at apex, and there are two 

 similar spines on the underside of the tarsi. Mentum 

 about equal in length to the anterior femur, biarticu- 

 late ; basal joint about one third the length of the 

 apical joint, the latter with about four hairs at the 

 margin of the apical half ; loop of rostral filaments 

 extending to insertion of intermediate legs. Anal 

 lobes not very pronounced in well-macerated examples, 

 furnished with long hairs and several spines. Anal 

 orifice with six long hairs, which project considerably 

 beyond the abdominal extremity. Segments above 

 with numerous hairs, which are more plentiful and 

 longer on the terminal abdominal segments, those at 

 the margins being the longest; there is also one anterior 

 and one posterior pair of eye-like glands. 



Long, 1 mm. 



It is only quite recently that I have satisfied myself 

 that this minute species is not the immature form of 

 Dactylopius radicum (now a synonym of D. hibernicus), 

 under which name I at first described it, and to which 

 I have'referred the insect in Vol. I of this work. I was 

 led to this error through finding both species living 

 together on the same plants. It is only after a long- 

 search that I have been able to discover old adult 



VOL. II. 13 



