:xvin 



Diestota sperata, Homalota Traili, Gyropheena parca, G. debilis, G. boops, 

 Coproporus tinctus, Suuius strictus. Berury, on the east bank of the Rio 

 Pums, near its junction with the Solimoes, or Upper Amazon. 



Calodera syntheta, Homalota brevis, H. gilva, Gyrophfena parca, G. laevis, 

 G.juncta, G. convexa, G. sparsa, G.quassa, G. tridens, G. boops, G. debilis, 

 Conurus setosus, Plociopterus loetus, P. Traili. Garrao, on the west (/. e. the 

 left side descending) bank of the Eio Jurua, about three hundred miles from 

 its mouth (about 4° S.). 



Gyrophacna pumila, G. parvula, Coproporus distans, Xantholinus anticus, 

 Palaminus discretus, Stenus pedator, Bledius simiUs. Jurucua, on the 

 east bank [i. e. right, descending) of the Rio Purus (about 7° S.). 



Coproporus curtus. Parentins or Juruty, on the south bank of the Lower 

 Amazons, about one hundred miles above Obydos. 



Coproporus politus, C. ignavus, C. cognatus, Philonthus Traili, Stenus 

 Traili. Auam'i, on the north bank of the SoUmoes or Upper Amazons, not 

 far above Manacapuru. 



Coproporus conformis, Cryptobiura triste, Sunius insignis, Stenus ex- 

 cisus, Omahum nanum. Pupuuha, on the west bank of the Rio Jurua 

 about 5° S.). 



Dolicaon distans, Bledius albidus. Mouth of Lago de Pao, left bank of 

 Rio Jurua (about 3° S.). 



Cryptobium Traili, Bledius muticus, B. modestus. West bank of Rib 

 Madeira, above Abelha (about 7° S.). 



Poederus punctiger. Cararaucu, north bank of Lower Amazons, about 

 one hundred miles below Villa Bella (formerly Villa Nova). 



Bledius addeudus, B. simplex. Rio Solimoes, or Upper Amazons, off the 

 Ilha de Catua, near Teffe (formerly Ega). 



Papers read. 



The following memoirs were read : — 



" Notse Dipterologicfe. No. III. Descriptions of new Genera and Species 

 of Acroceridse." By J. 0. Westwood, M.A., F.L.S., &c. 



" Nota) Dipterologicie. No. IV. Monograph of the Genus Systropus, 

 with Notes on the Economy of a new Species of that Genus." By J. 0. 

 Westwood, M.A., F.L.S., &c., President of the Entomological Society. 



