XS2 ' [August, 



disappeared, or of several joints when these septa can be distinguished, 

 — quite apart from the consideration of whether or not they can 

 articulate freely upon each other. In the present case, I maintain 

 that the septum can be distinguished between my 3rd and 4th joints 

 (at the point of Prof. Newstead's ' deep constriction.') The dividing 

 line is very fine and delicate, but it is clearly demonstrable in a good 

 movuit, with a proper adjustment of focus and illumination. In some 

 of my examples, it is fully as distinct as are the divisions between the 

 other joints, and in one specimen a third joint is closely fused to the 

 other two. Are we to consider, in this last case, that the antenna has 

 only five joints, of which the third is deeply constricted in two places ? 

 As a matter of fact, there is little or no play between any of the joints 

 — from the 2nd onwards. The transverse septa are usually more 

 marked between the 4th, 5th, 6th, and 7th (according to my interpre- 

 tation) joints than between the 3rd and 4th, but they move together — 

 as one piece, articulating freely only between the 1st and 2nd joints. 

 If Prof. Newstead will examine a long series of these insects, from 

 different localities, I think that he will find individuals in which it is 

 impossible to see any distinction between the divisions of (my) 3rd 

 and 4th joints and those of the subsequent segments. 



DESCRIPTION OF FIGURES. 



1. Ortheziola vejdovskrji, dorsal view, x 30. 



2. Antenna and eye of 0. vejdovskyi, x 70. 



3. do. do. N. floccosa, x 70. 

 4-. do. do. 0. lu'ticse, x 70. 



Peradeniya, Ceylon : 



June Zrd, 1911. 



ADDITIONS AND CORRECTIONS TO THE BRITISH LIST OF 

 MUSCIDM ACALYPTRATM. 



BY J. E. COLLIN, F.E.S. 



(Co7itinued from Vol. xlvii, page 153). 



EPHYDRID.E. 



NOTIPHlLINm. 

 *Notiphila hrunnipes, Desv. {stagnicola, Stenli. nee Desv.). — I am convinced 

 that Schiner was I'ight in considering stagnicola, of Desvoidy and Macqnart 

 distinct from stagnicola of Stenhammer, and feel svu-e that the species described 

 by Desvoidy as hrunnipes is the same as Stenhammer's stagnicola. I found it 

 in some numliers at Ranworth (Norfolk) on the leaves of aquatic plants ; it may 

 be known by its l)laek antenna}, which in life show a narrow pale base to the 



