1902.] SPIDERS PROM BORXEO AXD SIXGAPORE. 231 



It is frequently possible to pair a mimicking species with a 

 definite specific model, but perhaps more frequently the mimic 

 (either a Batesian or a Miillerian mimic) in its general appear- 

 ance resembles a whole group of known distasteful insects ; or, in 

 other words, the general appearance of the mimic is typical of a 

 distasteful group, rather than exactly similar to one definite 

 species ; and in these tables of mimetic Longicorns and their 

 models I have by no means included all, but merely typical 

 models. 



The diagrammatic tables of convergent groups of pseud- 

 aposematic and synaposematic insects at the end of the paper 

 include, however, all the known distasteful insects which serve as 

 models in the respective groups. 



In the Appendices are described a new species of Butterfly, a 

 new Moth, two new genera and several species of Longicorn Beetles, 

 two new Clerids, and two new Brenthids. I owe the descrip- 

 tion of all except the first-mentioned species to the kindness of 

 Dr. Karl Jordan, Mr. C. J. Gahan, the Rev. H. S. Gorham, and 

 Dr. A. Senna. 



Professor E. B. Poulton, F.R.S., has added some interesting 

 and suggestive remarks on my observations : these are scattered 

 throughout the pajjer, but in all cases his initials are affixed. 



My task, in the absence of a large library and of named col- 

 lections for comparison and reference, has not been easy, but I 

 have received the most valuable and generous aid from Professor 

 Poulton, whom I feel that I can never sufficiently thank. It is not 

 too much to say that had it not been for his help this paper coidd 

 not have been written. Most of the specimens here described 

 and figured are now deposited in the Hope Museum, Oxford, 

 where they can be seen by all students of the subject. I am 

 much indebted to Mr. H. IST. Ridley, Director of the Botanic 

 Gardens, Singapore, for directing my attention to some interesting 

 cases of mimicry observed by him and for some valuable notes 

 thereon. Mr. Gilbert J. Arrow, Monsieur Jules Bourgeois, 

 Mr. Malcolm Burr, Sir G. Hampson, Dr. F. A. Dixey, Dr. R. 

 Gestro, the Rev.O. Pickard-Cambridge, F.R.S.,Mr. R. McLachlan, 

 F.R.S., Mr. W. L. Distant, Mr. C. J. Gahan, Dr. Senna, Mr. M. 

 Jacoby, Ool. Bingham, Mr. E. E. Austen, Mr. 0. 0. Waterhouse, 

 Dr. Brunner von Wattenwyl, and Col. Yerbury have rendered 

 ranch kind assistance in identifying many of the species noted in 

 this paper, and to these gentlemen I tender my grateful thanks. 



I. ORTHOPTEHA AS MIMICS. 



i. Mimic. Larva of Hymenojyus hicornis (StoU). 

 Plate XIX. figs. 17 & 19. x 2. 

 Model. Larva of Eulyes amcena (Fab.). 



Plate XIX. figs. 16 & 18. x 2. 



The newly-hatched larvse of Hymenopus hicornis, one of the 



