362 



SIR J. LUBBOCK ON ANTS, BEES, AND WASPS. 



specimen of Cellepora fusca from the ' Rattlesnake ' collection and 

 thirty or forty years old, I detected several minute tailed corpuscles, 

 which can scarcely be any thing else than spermatozoa (see Plate 

 XXVI. fig. 11). 



EXPLANATION OF THE PLATES. 



Each square or division contains the chitinous appendages of a single species. 

 All the figures are magnified 115 diameters, and a scale =001 millim. is added. 



Fig. 1. Cellepora albirostris, mihi. 



2. C. albirostris? (Bass Strait, 



Mr. Hincks.) 



3. C. hastigera. 



4. C. columnaris. 



5. C. polymorpha, the massive 



branched form. 



Plate XXVI. 



Fig. 6. C. polymorpha, var. discoidea. 



7. C JacJcsoniensis. 



8. C. apiculata. 



9. C. tridenticidata. 



10. C. nodulosa. 



11. C. fusca. 



12. C. zamboangensis. 



Fig. 1. Cellepora ansata. 



2. C. Eatonensis, massive form, 



St. 149 d. 

 3. , incrusting form. 



St. 149 1. 



4. C. bicornis.'. 



5. C. Eatonensis, var. magella- 



Plate XXVII. 



Fig. 6. C. 



7. C. canaliculata. 



8. C. bidenticulata. 



8a. (young). 



9. C. conica. 



10. C. perlacea (MS.). 



11. C. simonensis. 



12. C. rudis. 



Observations on Ants, Bees, and Wasps. — Part VIII. By Sir 

 John Lubbock, Bart., Pres. Linn. Soc, M.P., F.E.S., D.C.L., 

 LL.D. 



[Eead June 2, 1881.] 



Experiments with Light of different Wave-lengths. 



In one of my former papers (Linnean Journ. vol. xiv. p. 278) I 

 have given a series of experiments made on ants with light of 

 different colors, in order, if possible, to determine whether ants 

 have the power of distinguishing colors. Por this purpose I 

 utilized the dislike which ants, when in their nest, have for light. 

 Not unnaturally, if a nest is uncovered, they think they are being 

 attacked, and hasten to carry their young away to a darker and, 

 a s they suppose, a safer place. I satisfied myself, by hundreds of 

 experiments, that if I exposed to light the greater part of a nest, 

 but left any of it covered over, the young would certainly be con- 



