1907.] MICROLEPIDOPTERA OF TENEKIFE. 971 



about one-fourth, extends across the fold to the cell ; beyond the 

 middle of the dorsum is another, yellowish white, upright streak, 

 broad at its base, slightly inverted, and attenuate to its apex on 

 the cell ; this is succeeded by an ill-defined, and much diifused, 

 streak along the term en ; a dark fuscous line runs through the 

 tawny greyish cilia, falsely indicating a tornus, more defined than 

 in the wing itself. Exp. al. 6 '5-7 mm. Hindioings dark grey ; 

 cilia tawny greyish. Abdomen greyish fuscous. Legs yellowish 

 white, broadly banded on tibiae and tarsi with dark tawny 

 fuscous. 



Type S (99047) ; $ (99048) Mus. Wlsm. 



Hah. Tenerife : Santa Cruz, 3000 ft., Cedronella triphylla^ 

 3. I, excl. 24. I - 1. II. 1907 {Wlsm.) ; Puerto Orotava, 10. III. 

 1904 {Eaton); Cruz de Afur, 10. III. 1904 {Eaton). Fifteen 

 specimens. 



The larva feeds, in December and January, in a broad blotch- 

 mine, on leaves of Cedronella triphylla, and is abundant at the 

 head of the Barranco del Bufadei-o, near Santa Cruz, and probably 

 on all the high ground, where this plant occurs, along the out- 

 skirts of the forests of Erica arhorea. Mr. Eaton met with the 

 species near the same locality, in 1904, and also in the Barranco 

 Martianez, Puerto Orotava. 



The Tenerife species of Perittia, here described, have the palpi 

 slightly longer than those of obscui^epunctella Stn., but this slight 

 difierence is not of geneiic value. 



83. (3919*3) Perittia Lavandulae, sp. n. 



Antennae fuscous. Falpi fuscous, tipped with whitish. Head 

 hoary whitish, with fuscous speckling. Thorax fuscous, with 

 some whitish scales on the tegulae. Forewings dark fuscous, 

 profusely sprinkled with rather yellowish white scales, by con- 

 centration of which the dorsal streak arises at one-fourth, pointing 

 outward, and difi"used upward to the costa ; a larger, upright, 

 streak arises before the tornus and extends nearly to the costa, 

 a further patch spreading over the upper half of the termen and 

 apex ; a line of dai-k fuscous scales runs through the greyish 

 fuscous cilia. Exp. al. 4'5-6 mm. Hindwings and cilia greyish 

 fuscous. Ahdovien dark fuscous. Legs whitish, broadly banded 

 with dark tawny fuscous on the tibiae and tarsi. 



Type d (99071) ; $ (99072) Mus. Wlsm. 



Hab. Tenerife : Santa Cruz, 14. 1 - 21. II. 1907, Lavandula 

 abrotanoides, 20. I - 22. II, excl. 13. II - 28. III. 1907 ; Guimar, 

 28. II. 1907 ; La Laguna, Lavandula staechas, 3. VI, excl. 

 19. YII. 1907. Thirty-six specimens. 



The larva is common, at Santa Cruz, on Lavandula abrotanoides, 

 hollowing out the ends of the slender leaflets, and leaving them 

 bleached, when passing from one to another (after the manner 

 of the larvae of Epermenia on Uonhelliferae) ; it also feeds on 

 Lavandula staechas. _ _ 



Proc. Zool. Soc— 1907, No. LXY. 65 



