60 THE ENTOMOLOGIST. 



discovered in two of his greenhouses, among vines planted 

 in 1869, sufficiently distant from each other to render it 

 improbable that the insect had been communicated one from 

 the other; and he therefore concluded that the disease had 

 been introduced in 1869 from the graperies in England. The 

 vines so attacked had, however, not succumbed to the disease, 

 but were simply rather weaker than those which had not been 

 attacked. He was, therefore, anxious to ascertain whether 

 the vines in the Englisli graperies were less influenced than 

 those out of doors ; but none of the members present were 

 aware of the occurrence of the insect in England out of doors, 

 but that it had hitherto appeared in greenhouses only. 



Synonymical Notes on Longicorn Coleoptera. — Mr. C. O. 

 Waterhouse communicated the following : — 



" Fam. Prionid^. 



Acanthophorus Palinii, Hope, — This species was placed 

 by Mr. Adam White, with doubt, as Acanthophorus Yolofus 

 of Dalman, and in Gemminger and Harold's ' Catalogue of 

 Coleoptera' they are placed together without even a doubt. 

 There being, however, in the British Museum a species of 

 Tithoes (to which genus A. Palinii must now be referred), 

 which I believed to be the true A. Palinii, I referred to Prof". 

 Westwood, who kindly sent to me a sketch of Hope's type in 

 the Oxford Museum, confirming my determination, and 

 making it certain that A. Yolofus and A. Palinii are quite 

 distinct species. Tithoes Palinii resembles T. confinis, but 

 is shorter; the eyes are much approximated above; the 

 thorax is broadest in front, with the anterior spine strong 

 (much longer than the lateral spine), and very much recurved ; 

 the elytra are marked much in the same way, but the apex of 

 each elytron is less rounded, and there is a small tooth at the 

 sutural angle. Length J inch 10 lines; width 8 lines. 

 Habitat, Sierra Leone. 



Acanthophorus capensis, White. — This species is correctly 

 placed in that genus, and does not belong to Tithoes, as 

 placed in Gemminger's Catalogue. 



Mallodon Gnatho, White. — This insect must be placed in 

 Lacordaire's genus Nothopleurus (Gen. d. Col. viii. p. 125). 

 As nothing is said by Lacordaire about the form of the 

 mandibles in the description of N. ebeninus, it will probably 



