76 



HARDWI CKE ' S S CIE NCE-GO SSI P. 



Rising, Southing, and Setting of the Principal Planets 

 in April. 



larger than the fourth magnitude, and no astronomical 

 occurrence of popular interest. 



Mercury will be an evening star at the end of the 

 jmonth. 



Venus will be an evening star. 



Mars will be an evening star. 



Saturn will be nearly stationary between the con- 

 stellations of Cancer and Leo. 



SINGULAR MIMICRY. 



THE enclosed drawings illustrate a curious case 

 of mimicry between an hemipter and a thrips. 

 The hemipterous insect was found associating with 



* 2 



Fig. 58. Nat. size. 



2.€!. 



colonies of thrips on the leaves of a licus. I have 

 been unable to satisfy myself that this mimicry is for 

 predatory purposes, as although confined together for 

 several days in a glass tube the bug has not attacked 

 any of the thrips. These, however, were all adult 



specimens ; it is possible it may feed upon the larval 

 insects. The colour of the bug is a dark reddish- 



Fig. 60. Side view, mag. 



purple ; it has small wing pads, and has probably not 

 reached its perfect stage. 



Punduloya, Ceylon. E. Ernest Green. 



PARASITES OF THE WHITE ANT 

 (BENGAL). 



By W. J. Simmons. 



[Continued /rom p. 62.] 



ASSOCIATED with the infusorians described on 

 page 61,1 have found another smaller and rarer 

 parasite (E G), which I designate Parasite' No. 2. 

 Although it entirely lacks the mouth-parts to which I 

 have directed special attention in previous paragraphs ; 

 it is not identifiable with any of the figures or descrip- 

 tions in Kent's Infusoria of the animalcules which Leidy 

 discovered in the termites of America. The cross- 

 markings shown in my sketch are best seen when the 



xaoo 



B '260 



Fig. 61. 



objective is focussed for the central axis of the body, 

 and are due to the parallel spirals on opposite sides of 

 the body being in view together. This is readily proved 

 by using a power of eight hundred diameters. 



(F) The shape of this animalcule is less variable 

 than that of Parasite No. i ; the cilia at its posterior 

 extremity are slightly longer than those distributed over 

 the rest of thebody ; and, though the ciliation at the 

 anterior end is directed forwards, it does not assume 

 the collar-like appearance which is so conspicuous a 

 feature in Parasite No. i. 



My observations so far lead me to believe that both 



