( Ixxiii ) 



not sufficient data to form a conclusion on the points raised 

 by the writer. 



*' Reading your very interesting paper on the mimicry of 

 Acnleata in this year's Trans. Ent. Soc, III, pp. G61-5, reminds 

 nie that I have frequently wanted to inquire if any one has 

 noticed that this form of mimicry is often extremely local and 

 concentrated in character. In this way you may be out all 

 day collecting and not find a single mimic — then you may 

 light upon some spot where mimicking Diptera are common, 

 even to the extent of each species of Aculeata having its 

 under-study. I remember two places in India most distinctly 

 — one a lane near Pulta Barrackpore, and the other the 

 Khusru Bagh Gardens, Allahabad — whei^e this was the case. 

 In the last the mimicking Diptera were a perfect nuisance in 

 collecting ; for at that time this subject had not attracted the 

 interest it has of late years. I cannot remember any particu- 

 lar feature which would make these two spots so particularly 

 favourable for Diptera, and I do not think the explanation 

 will be found in this direction. I have met with similar cases 

 in other localities, but these two stand out as clearly-defined 

 facts, and they have always puzzled me greatly." 



Paymaster-in-Ohief Gervase F. Mathew, R.N., exhibited a 

 case containing some beautiful and interesting examples of 

 Leucania favicolor, Barrett, including the varieties described 

 by Bari-ett in the current volume of the " Entomologist's 

 Monthly Magazine," p. 61, and, more recently, by Tutt in the 

 " Entomologist's Record " for this year, p. 252. Thirty-nine 

 examples were exhibited as follows : — 



1- 2. The original pair as described by Barrett in the " Ento- 

 mologist's Monthly Magazine " for 1896, p. 100. The 

 genitalia of the male had been removed for examina- 

 tion by Mr. Pierce, so the specimen was rather spoilt. 

 3- 4. Male and female of typical form. 

 5- 8. Two males and two females ab. obsoleta, Tutt. 

 9-11. Two males and one female ab. intermedm, -Tutt. 

 12-14. Two males and one female ab. inter media-tyjyica, Tutt. 

 15-17. One male and two females ab. argillacea, Tutt. 

 18-21. Two males and two females ab. rufa, Tutt. 



