998 LORD WALSINGHAM ON THE [Nov. 26, 



Very common everywhere, and exceedingly variable, ranging 

 from unicolorous chalk-white, through various gradations of 

 greyish ochreous and brownish grey, to slightly, and conspicuously 

 fasciated forms, more or less speckled between the fasciae. I bred 

 it from Argyranilie'mutn pinnatifidutn, from Fagonia cretica, from 

 Psorcdea bitu,mi?iosa, and from Stachys sp. : a series of thirty-two 

 selected specimens was preserved, in addition to several specimens 

 received from the late Mr. J. H. Leech, and from Mr. Eaton. 



OLETHREUTINAE. 



61. (247) ACROCLITA Ldr. 



125. (1966-01) AcROCLiTA guanchana, sp. n. 

 (Plate LIII. fig. 5.) 



Anten7iae hoary greyish. Paljn porrect, slightly dependent, 

 stretching the length of the head beyond it, densely clothed, 

 especially above, terminal joint short, smooth ; hoary grey, fuscous- 

 on the outer sides. Head hoary greyish, with some mixture of 

 reddish brown scales. Thorax reddish brown. Forevnngs elon- 

 gate, narrow, costa moderately arched, term en oblique, sinuate, 

 tornus evenly rounded ; tawny reddish brown, with some black 

 scaling which is sometimes reduced to a few marginal specks, but 

 in some varieties forms an elongate series of streaks or spots, more 

 or less connected, or detached, commencing at the middle of the 

 base, exhibited again along the cell beyond it to the apex ; in 

 one dark variety (99115) these streaks form an almost con- 

 tinuous line, with a diverging point along the fold ; in another, 

 paler, and faintly mottled form (99116) they are broken into 

 three separate streaks, one from the base along the first half of 

 the fold, a shorter one toward the end of the cell, and an outer 

 one beyond the cell to the apex, with two minute spots beloAv the 

 intermediate spaces and one near the base of the dorsum ; in the 

 paler varieties there is also some indication of lighter geminated 

 costal streaks, with alternating faint shade-spots ; cilia slightly 

 paler than the wing, with a distinctly paler line along their base^ 

 followed by parallel shade-lines running through them. Exp. 

 al. 12-15 mm. Hindioings broader than the forewings, with 

 oblique, sinuate, termen ; grey with a slight rosy tinge ; cilia 

 paler, with a faint shade-line a little beyond their paler base. 

 Abdomen and Legs griseous, varying to subochraceous ; hind tarsi 

 faintly shaded, excejjt at the joints. 



Ty2)e J (99115); $ (99118) ; var. S P^. (99116-7) Mus. Wlsm. 



Hah. Tenerife : Santa Cruz, 3000ft., 3. I. 1907, © Hypericum 

 grandifoliimi, 3. I, excl. 29-31. I. 1907 {^Vlsm.)^, Villa Orotava, 

 19. II. 1907 {Wlsm.) ; Forest de la Mina, 7. IV. 1904 {Eaton) ; 

 Guimar, 10. IV. 1907, Hypericum grandifolium, 25. II, excl. 

 7. IV - 4. V. 1907 {Wlsm) ; Las Mercedes, 14. V. 1907(T'rfem.) ; 

 Tacaronte, 31. V. 1907 {Wlsm.). Fifteen specimens. 



