( c ) 



little time for any experiments, as they take time, and one 

 must have leisure as well as be able to stay in one place for a 

 certain length of time. Anyway, I'll try and send yoiT what 

 yon want." 



The male and female of Acraea chilo observed in 

 coiTU. — Prof. PouLTON said that he had received a letter 

 dated Oct. 6, 1914. from Rev. K. St. Aubyn Rogers at Sagalla, 

 near Voi, British East Africa. In this letter he had been 

 n\uch pleased to read the following interesting and long- 

 looked-for observation : — 



"■ On Sept. Ill observed a pair of Acraea, chilo, Godm., 

 ill copula, the female being of the form long known as A. 

 cii/stallina, Gr.-Sm. Unfortunately they flew into a large 

 t horn tree, where they were quite inaccessible ; but, as it 

 was entirely leafless, I was able to make quite sure of the 

 identity of the insects. I could see them only a few feet 

 away through the branches, although 1 could not dislodge 

 them. The female was the active member in the marriage 

 flight, the male hanging inert behind her. I think you will 

 be glad to have this confirmation of Neave's discovery (Ent. 

 Mo. Mag., 1909, p. 171). " 



Males of Ceratopogox myrmecophilus and Formi- 

 c'oxenus nitidulus on the hillock of formica rufa near 

 Bournemouth. -Prof. Poulton exhibited the specimens and 

 read the following note contributed by Mr. A. H. Hamm, of 

 the Hope Department : — 



" The small flies exhibited, which Mr. Donisthorpe has 

 identified as Ceratopogou myrmecophilus, Egger, were first taken 

 by him in England a few years ago. I found them in abund- 

 a.nce flying and settling on a single nest of the large wood-ant, 

 Formica rufa, L., near Bournemouth, on Aug. 6 last. i had 

 jio doubt, fi'oni the moment I saw them, that they were truly 

 myrmecophilous, because of the fearlessness with which they 

 moved about among the ants on the surface of the hillock. 

 The ants did not attempt to molest them in any way, merely 

 touching them with their antennae and passing on. Other 

 small flies which, by way of experiment, I threw among the 

 ants were immediately seized and carried oft'. I also enclosed 

 «j)ie of the Ceratopogon with six of the ants in a glass-bottomed 



