6 MR. G. A. K. MARSHALL OX COLEOPTERA [Jail. 19, 



" 3150. The aorta of a Turtle (photographed from a specimen in 

 the Hunterian Collection, Royal College of Surgeons), in which, 

 without any obvious morbid change of structure, a small conical 

 aneitrysm is formed by dilation of a portion of all the coats. The 

 base of the cone is formed by the mouth of the aneurysm, and one 

 of its borders projects a little, like a narrow semilunar ^alve." 



The following papers were read : — 



1. A Monograpli o£ the Coleoptera of the Genus Hvppor- 

 rlimus, Schh. (Ciirculionidpe) . Bj GuY A. K. Marshall. 

 F.Z.S. 



[Received November 12, 1903.] 

 (Plates I.-IY.*) 



Since the time, now more than thii-ty years ago, when Fahrreus 

 described the collections made by the Swedish surveyor and ex- 

 plorer, Wahlberg, the Curculionidfe of South Africa have received 

 comparatively little attention from systematists, and, so far as the 

 genus Hijjjiorrhinus is concerned, only a bare half-dozen isolated 

 species have been described by Peringuey, Faust, and Fairmaire 

 during that period. As a result of this a considerable amount of 

 undescribed material has accvimulated in collections, so that I 

 have found it necessary to recognise provisionally no less than 

 fifty new species, the describing of which has necessitated a 

 complete revision of the genus. For much of this material I am 

 indebted to the liberality of my fellow- entomologists in South 

 Africa, and especially to the Rev. Father O'Neil, of Dunbrody, 

 near Uitenhage ; Dr. H. Brauns, of Willowmore, Cape Colony ; 

 and Mr. C. N. Barker, of Natal ; all of whom have generously 

 presented me with examples of any species I required from their 

 collections. Duiing a few days' stay in Cape Town I was able to 

 look through the fine seiies of Hipporrliini in the South African 

 Museum and also in Mr. Peringuey's private cabinet. The latter 

 gentleman not only placed all his material at my disposal, but kindly 

 handed over to me his MS. of a monograph of the genus which he 

 had begun to write in French many years ago. Although I have 

 not been able altogether to accept the arrangement and sub- 

 division of the genus proposed by Mr. Peringuey, yet I have 

 availed myself of several interesting notes and observations made 

 by him, and have adopted one of his proposed new genera. 



A great part of mj- work was efl;ected in the Insect Room of 

 the British Museum during the summer of 1902, and I have to 

 gratefully acknowledge the courteous assistance afforded me by 

 both Mr. C. J. Gahan and Mr. G. J. Arrow during the many 



* For explanation of the Plates, see p. 141. 



