30 [February. 



the German Dipterists, cuillerons by the French, and squamce by the 

 Swedish. Robiueau Desvoidy divided the Muscidce into two great 

 divisions by the difference in size (the presence or comparative absence) 

 of these organs, naming them calypteratcs and acalypterata from the 

 Greek word Kalupteer, a cover. These divisional terms have been 

 generally adopted ; why, then, have the names ceased to be applied to 

 the organs themselves ? R. Desvoidy used the term cnhjpta sometimes, 

 but he abandoned it for the rather curious one of cuilleron, or bowl of 

 a spoon. Haliday used the name calyptra in some of his publications, 

 but the only author who has adopted it altogether is Rondani. It 

 seems to me to possess a claim over all the others, especially when 

 applied to the Muscidce. 



The two scales constituting these organs are in some respect 

 independent of each other, the larger one being attached to the scu- 

 tellum, and lying behind or rather beneath the other, while the smaller 

 one is connected with the wing, and moves with it independently of 

 the other. Osten Sacken would, therefore, give the two scales different 

 names, calling the lower and larger one the tegula, as it covers the 

 poiser, and the smaller one antltegula. The term tegula has exactly 

 the same meaning as calyptrum, only one is derived from Greek 

 and the other is Latin, and has no advantage over it. I think, 

 therefore, that we are bound to call these scales calyptra, as that 

 name has the claim of priority, and is especially applicable to the 

 calypterated Muscidce. 



Bradford : December, 189G. 



ON THE BIOLOGY OF CAMAROTA FLAVITARSIS, Meio. 

 BY DR. PAUL MARCIIAL. 



In the No. of this Magazine for November, 1890, there is an 

 interesting note by Baron C. li. Osten Sacken " On Camarota as a 

 noxious insect." I would remark that I have already given the biology 

 of Camarota flavitarsis in my note " Sur les Dipteres nuisibles aux 

 ce'reales observes a la Station Entomologique de Paris en 1894 " (C. 

 "R. Acad. d. Sci., Paris, Sept. 10th, 1894). Rondani only observed the 

 adult flies, which were mixed with Clilorops reared from wheat ; he 

 says nothing of the earlier history of the insects. 



The stems of wheat attacked by Camarota are arrested in their 

 growth, and do not attain more than 30 cm. in height, the ear not being 

 developed. The maggot, observed on June 15th, attacks the terminal 

 portion of the stem ; it destroys the axis lengthwise, begiuniug from 



