1907.] ON THE MICROLEPIDOPTERA OF TENERIFE. 911 



This mascle in the Pelobatidae has retained its embryonic rela- 

 tions to the larynx, and has only in a very slight degree acquired 

 the secondary relation to the thyrohyal. Precisely the same 

 thing is figured by Ridewood for Xenopics and Fipa. The long 

 ■extension backwards of the cesophageal muscle, universally charac- 

 teristic of the Pelobatidpe (as far as our information goes), and its 

 relation to the pelvis is possibly to be conipared with the also very 

 lai'gely developed and apparently corresponding muscle in the 

 Aa'iossa. 



5. Microlepidoptera of Tenerife. By the Eight Hon. 

 Lord Walsingham, M.A., LL.D., F.H.S., F.Z.S. 



[Received November 12, 1907.] 

 (Plates LI-LIU. and Text-figures 241-243.) 



In the Annalen of the K.-k. Naturhistorische Hofmuseum 

 (Vienna) Professor Dr. H. Rebel has published a series of very 

 interesting and instructive papers on the Lepidopterous Fauna 

 of the Canary Islands ; I desire now to record the result of 

 a short visit to Tenerife, during which I was able to devote a 

 good deal of attention to the Microlepidoptera of the island : 

 a large proportion of these having been bred, it is satisfactory 

 to be able to add some information upon their food-plants and 

 larval habits. In the last of the papers above referred to, published 

 in Vienna in 1906, Prof. Rebel gives a revised sj^stematic cata- 

 logue and enumerates 87 species of Alicrolepidoptera (10 of which 

 are merely indicated without special nanies under the genera to 

 which they belong), 4 out of the remaining 77 not being recorded 

 from Tenerife; we have therefore a residue of 73 species, to which 

 the additions following in this paper may now be made, raising 

 the total to 173 species (of which 70 are here described) distri- 

 buted among 84 genera (seven of which are new). It is proposed 

 to add some critical notes upon Rebel's List, where these seem to 

 be required thi'ough the acquisition of additional information : the 

 species not met with are merely inserted to facilitate reference. 



I desire to express my very grateful thanks to Dr. George 

 Perez, and to Dr. 0. Burchard, for the great assistance they gave 

 me in naming many plants which I should otherwise have been 

 at a loss to determine ; as also to the Rev. A. E. Eaton for 

 numerous additions to my cabinet included in this paper. 



I had moreover the great advantage of being allov/ed to examine 

 Mr. W. W. White's collection at Guimar, enabling me more fully 

 to appreciate the value of Dr. Rebel's work ; nor can I forget that 

 that author had already most kindly dealt with some material 

 originally submitted to him from my collection. Without the 

 encouragement offered by the complete and systematic manner in 



