1907.] MICROLEPIDOPTERA OF TENERIFE. 919- 



collected at Oi'otava in Apiil ; I found the same quite abundant in 

 the larval stage on Phagnalon saxatile at Santa Oruz and Guimarv 

 and saw traces of it in other localities where its food-plant occurs. 

 Mairy years ago Milliere gave me a specimen of his olbiadactylus, 

 taken in the Esterel (vide Nat. Sic. Y. 224) : I was therefore well- 

 acquainted with his species, which I have taken in Spain and 

 reared from Phagnalon riqyestre there. Milliere figures and de- 

 scribes the larva and pupa, but he omits to mention whether he 

 actually bred or captured the imago. He suggests that the larvae 

 feed on lichens growing on the rocks where they were found, but 

 he adds that they did not eat in cajDtivity, and quickly pupated. 

 I know that Phagnalon saxatile is common in the locality where 

 he discovei-ed the species, and where I have myself sea,rched for it 

 unsuccessfully when in ignorance of its food-plant. His figure of 

 the larva shows no black dorsal spots, nor does he describe them. 



but the Tenerife larvae (and, if 

 Text-fig. 242. -*- I'iglitly remember, the Spanish 



larvae also) possessed a line of 

 such spots, one on each segment. 

 It is open to doubt whether the 

 larvae recoi'ded by Milliere on 

 rocks were not those of Alucita 

 tetradactyla L., which is abun- 

 dant on the same spot. Aftei- 

 very careful comparison of s]De- 

 cimens with Milliere's figure, and 

 Gypsochares olhiadacti/la with the exponent received from 



(^^902). i^in^i there remains no possible 



doubt that Gypsochares hede- 

 manni as figured and described by Rebel, and represented by a 

 named specimen in Mr. W. W. White's collection, is the same as 

 Pterojihorus olhiadactylas Mill. I have received the same species 

 from Spain from Dr. Staudinger under the logonym " /e^jto- 

 dactylaJ' The traces of the larva are easily recognised by the 

 curling-back of the woolly underside of the leaves from which 

 it has eaten the upper surface and parenchyma, thus exhibiting- 

 small white spots distributed about the plants on which it has 

 fed : this is similar to the effect produced by larvae of Ahtcita 

 adaonas Cnst., on Staehellnus — a noticeable sign of its presence, 

 to which I called my late friend's attention before he was himself 

 acquainted with the larva, and before we had either of us seen 

 the imago. 



6, (214) PTEROPHORUS Geoflr. 



= Alucita Meyr. HB. Br. Lp. 438;.(r895) ; Emmelika Tutt Br 

 Lp. Y. 97 (1906). 



8. (1387) Pterophorus monodactylus L. 



Phalaena Alucita monodactyla L. Syst. K'at. ed. X. 542 no. 300 

 (1758)'. Pteroj^horns m onoda ciyln s Alphh. Mem. Lp. Y. 231 



