( XXX ) 



thorpe had kindly informed him that, so far as he was aware, 

 the only published record was that of Edward Jacobson, 

 who observed Harjpagomyia splendens, Meij., fed by the ant 

 Cremastogaster difformis, Smith, in his garden at Batavia — 

 Tijd. v. Entom. 52, 158-74 (1909); Notes from the Leyden 

 Museum, 31, 246 (1909) — and subsequently at Samarang, 

 Central Java— Tijd. v. Entom. 54, 158-61 (1911), 3 Plates. 

 Jacobson figured the larva and pupa and reproduced photo- 

 graphs of the gnat being fed by the ant. 



It was to be hoped that specimens would soon arrive so 

 that the Nigerian species of Cremastogaster, as well as the 

 other Diptera which Mr. Farquharson observed being fed by 

 them, might be studied and if possible determined. 



" Many things remain incomplete, but I can honestly tell 

 you that I have never described what I was not certain that 

 I actually did see. At times, indeed, I have seen such curious 

 things that I was afraid to describe them on one observation 

 in case I were wrong, for I could scarcely credit the evidence 

 of my own senses. On one occasion, for example, I was 

 certain that I actually saw a mosquito (at Agege) obtain 

 regurgitated food from a Cremastogaster. I am sure it was 

 a Stegomyia. . . . 



" I've just come back from my evening stroll. I went 

 down to our old haunt (Lamborn's and mine) to look into the 

 welfare of two Lycaenid larvae that have, for the last few 

 days, been slowly devouring a happy family of Coccidae 

 ( '. Lecanium) on a young plant of Imbricaria maxima. Of 

 them more anon. Having still a little daylight to spare I 

 went to the old ' Hewitsonia tree,' and there saw at least 

 half a dozen mosquitoes hovering over the Cremastogaster 

 ' campus.' There was light enough clearly to see three of 

 them at the same game — not Stegomyias and not Anophelines. 

 I had no tubes to collect them ; I was tired when I went out 

 and didn't expect to get the length of the old tree, but I 

 know now that I'll see them again. But I wish I'd been in 

 time for the mail. I took the Stcgonu/ia at Agege in a tube 

 which I failed to notice at the time to be moist. When next 

 I looked at it I found it dead and sticking to the wall of the 

 tube. I had a reaction, doubted my eyesight, left the tube 



