NosoDENDUON IS considered to belong to the family Byr- 

 rhidse ; the passage probably to the typical genus will be 

 by Byrrhus setiger of Illiger and B. arenarius of Sturm. I 

 have only had an opportunity of examining the former insect, 

 and then only superficially ; but the antennae appear to be so 

 much more like those of our genus than of Byrrhus, that it 

 will, I fear, be necessary to separate them, unless they be No- 

 sodendra. 



The genus has never been recorded as British. N.Jasci- 

 culare was first observed near Paris many years since on the 

 25th of March in the ulcerated parts of Elm-trees, and was 

 described and figured by Olivier, and afterwards by Panzer. 

 Dr. Leach subsequently captured it in the month of May in 

 Devon ; and Mr. Hope informs me that he found a species at 

 Southend, Essex, in abundance under the bark of Elm-trees, 

 which were placed in the sand to arrest the incursions of the 

 tide. 



In the British Museum also, is a beautiful specimen of the 

 Byrrhus setiger of Illiger and Gyllenhal, figured by Sturm in 

 the 35th plate of his Deutschlands Fauna. It was taken by 

 Dr. Leach in Speechwick Park, near Ashburton, Devonshire, 

 some time in the month of May. 



For specimens of the plant Valeriana Calcitrapa (Portu- 

 guese Valerian) I am indebted to Mr. R. Chambers, F.L.S. 

 who gathered them the middle of last June, on an old wall at 

 Eltham, Kent: it has never, I believe, been figured in any 

 British Flora. 



