190 RIPERSIA SUBTERRANEA. 



to say, the ants did not take the slightest notice of the 

 coccids, although I placed specimens of the latter 

 amongst them and watched them most carefully. I 

 remember that the day in question was a dull and 

 somewhat stormy one, which may have made the ants 

 less attentive to their unwilling (?) lodgers than they, 

 under more favourable climatic conditions, would have 

 been. 



This species has not been recorded from any other 

 part of the world. As will be seen from the detailed 

 drawings on PI. LXVIII,it closely resembles R. tomlinii, 

 but is easily distinguished from that species by its six- 

 jointed antennge, longer mentum, and shorter hairs on 

 the anal orifice ; it is also smaller, and, so far as I have 

 been able to ascertain, does not construct a felted 

 ovisac. 



EXPLANATION OF THE PLATE. 



PL LXVIII, figs. 11, 11 a. Antennae of adult female. 



X 250. 



Fig. 12. Mentum of adult female. X 250. 

 Fig. 13. Tarsus of adult female. X 250. 

 Fig. 14. Anal orifice and lobe of the adult female. 



X 250. 

 Fig. 15. Marginal hairs, on dorsum between 



antennae, of adult female. X 250. 

 Fig. 16. Spiracle of adult female. X 250. 

 Fig. 17. White secretion of the adult females on 



roots of grass from ant's nest. Natural size. 



RIPERSIA TERRESTRIS* (N"e wstead) . 

 (PI. LXIX, figs. 1-7.) 



Ripersia terrestris, Newstead; Ent. Mo. Mag., s.s., 

 vol. vi, p. 213, figs. 1-5 (1895); Journ. Roy. 



* See Appendix. 



