1000 LORD WALSINGHAM ON THE [Nov. 26, 



middle of the costa to the dorsum before the tornus, throwing a 

 projection inward from its middle and slightly bulging outward 

 above its lower extremity ; beyond it is a triangular shade-patch, 

 more or less furcate to the costa, the apex and termen being also 

 narrowly shaded; in some specimens (99110) the intermediate 

 spaces between these markings, as well as the dorsal portion of the 

 basal patch are white, sparsely sprinkled with brownish scales ; in 

 other specimens (99109) they are entirely suffused with dark steely 

 greyish fuscous, paler only at the edges of the dark markings ; about 

 four pairs of geminate costal streaks are visible on the outer half 

 of the wing ; cilia fuscous, with a more or less defined shade-line 

 along their base, Exp. al. 14-17 mm. Hindiomgs brownish 

 cinereous, with a slender pale line along the base of the rather 

 more smoky cinereous cilia ; in the paler specimens the hindwings 

 are also of a lighter shade. Abdomen and Legs corresponding to 

 the hindwings in colour ; tarsi darkly shaded between the pale 

 joints. 



Type $ (99108); S (99109); ©(99111); var. $ Pr. (99110) 

 Mus. Wlsm. 



Hah. Tenerife: Guimar, 7. lY. 1907, ^ Sonchtts gvonnii/er, 

 9-27. Ill, excl. 4. Y - 12. YI. 1907 ; Puerto Orotava, Smichus 

 gummifer, 23. lY, excl. 13. Y - 19. YI. 1907, SoncJms lepto- 

 cephalus, 22. lY - 11. Y, excl. 5. YI - 2. YIII. 1907. Fifteen 

 specimens. 



The larva, which is dull greyish, turning to bright red before 

 pupation, feeds on the leaves outside the stems of Sonchus gum- 

 tnifer and leptocephalus. The moth is extremely variable, some 

 specimens being almost black, on which the pattern, although 

 easily traceable and very consistent, is much obscured, while in 

 others all the intermediate spaces being white, the darker markings 

 stand out very conspicuously. As compared with consequana HS., 

 it is somewhat similar in general design, but the outer fascia is 

 less oblique and less prominently angulated outward below the 

 middle, while the space between this and the apex is more occu- 

 pied by darker patches and the costal streaks are less confluent 

 and less oblique. 



62. (243) POLYCHROSIS Rgt. 

 128. (1954-1) PoLYCHROsis NEPTUNiA, sp. n. (Plate LIII. fig. 1.) 



Antennae ochreous, varied with black above. Paljn ochreous. 

 Head and Thorax ochreous, varying to reddish fuscous in some 

 specimens. Foreioings ochreous, varying to brownish ochreous, and 

 even to reddish fuscous, the darker shades pi-evailing especially 

 towards the dorsum ; the costa is delicately speckled with fuscous 

 throughout ; before the middle is an outwardly oblique, greyish 

 white fascia, somewhat contracted on the fold, terminating on the 

 middle of the dorsum, its upper half slightly reticulated, or speckled, 

 with the ochreous ground-colour ; beyond it a narrow dark space 

 separates it from a broad, irregular, second fascia of the same 



