MoRiCE exhibited a book of Charles Darwin's (" Descent of 

 Man ■') given by the author " with kind regards " (autograph) 

 to the late Mr. Roland Trinien. 



Remarkable Development in hind leg op a Female Bee. 

 — Mr. MoRiCE also called attention to the very abnormally 

 developed hind-legs of a ? bee of the genus Megachile from 

 Mesopotamia, apparently belonging to a section of the genus 

 in which no ch'aracter at all similar had yet been described in 

 either sex. He did not feel able to say for certain whether the 

 character was specific, or a case of monstrosity, but at present 

 inclined towards the former opinion. 



Aberrant Plusias. — Lord Rothschild exhibited two 

 aberrant specimens of the genus Plusia in which remarkable 

 aberration is very unusual. The one was a specimen of P. 

 gamma with deep purplish suffusion, ab. purpurissa, Warr., 

 the other a beautiful example of P. pulchrma taken near 

 Gloucester, June 21, 1919, by Mr. C. G. Clutterbuck, in which 

 the usual golden Y mark was replaced by a large wedge-shaped 

 golden blotch, the space between the hind-margin and the 

 subterminal line being of a beautiful pink shade. 



East African Flatidae. — ^Dr. C. J. Gahan exhibited speci- 

 mens of the East African Flatidae named Itijraea patricia, 

 Melich., /. speciosa, Melich., 7. electa, Melich., and I. gregoryi, 

 Dist., and said he believed them to be all forms of the South 

 African species Ityraea nigrocincta. Walk., with which they 

 agreed in structural characters. In a very large series of 

 specimens captured by Mr. Loveridge at Morogora, three of 

 these forms were represented, the one named patricia being 

 the most abundant ; and specimens of the latter had been taken 

 in cof. with speciosa. Ityraea gregoryi, which was not found 

 at Morogoro, appears to be the predominant form farther 

 north, as, for example, at Kibwesi and in other parts of British 

 East Africa, there taking the place of patricia. In all of these 

 forms, the tegmina are more or less distinctly margined with 

 black and show a short transverse streak of varying length 

 running inwards from the margin at the apex of the clavus. 

 I. patricia may be distinguished from the other forms by its 

 three-coloured tegmina, which are red at the base, pale bluish 

 green (or blue in the living insect) in the middle, and pale yellow 



