Manchester Memoirs, Vol. iviiz. {ig\/^), No. 4. 3 



examples which had re-assembled, and thus lost the 

 arrangement which it is possible they may have possessed 

 on emergence from the pupa. 



In 1 91 2 Mr. Gahan' exhibited before the Entomo- 

 logical Society of London a small series of Phromnia 

 siiperba, Melich., a "dimorphic" species of Homoptera 

 taken by Dr. A. C. Parsons in Northern Nigeria. In a 

 letter Dr. Parsons remarks that one day when he was in the 

 jungle his attention was arrested by a dove-coloured " pea 

 flower." On attempting to gather it the " blossoms " flew 

 up in a cloud of fluff about his head, and then re-settled 

 individually among the brushwood. He mentions that 

 the folded wings are the exact shape of the keel of a pea- 

 flower, and the insects were all arranged on the bare stem 

 of a bush. Their heads were all pointing in the same 

 direction, their colour graduating from green at the top of 

 the twig to a deep dove-colour, that would indicate the 

 lowest blossom below. Mr. Gahan remarked that Dr. 

 Parson's observations were a strong confirmation of those 

 of Prof. Gregory. At the same meeting of the Entomo- 

 logical Society W. A. Lamborn* exhibited a series of 

 specimens of the genus Plata, all taken together from one 

 plant about 70 miles E. of Lagos. He states that the 

 insects were "dimorphic," pink and green forms being 

 intermixed as they rested on the same plant. He had 

 not noticed any definite arrangement according to colour 

 as observed by Dr. Parsons although he was acquainted 

 with the same species. 



While touring in the Himalayan foot-hills of Kumaon 

 in the Naini Tal district during June and July, 1909, I 

 came across some examples of an Indian species of the 

 genus, viz., Phro7nnia magtnella, Oliv. They occurred in 



' Vzde Proc. Entoni, Soc. Land., pp. Ixxxviii.-xc. 

 ■* Proc. Eni. Soc. London, 1912. p. xc. 



