916 LORD WALSINGHAM ON THE [Nov. 26, 



slightly grey-shaded. Exp. al. 16-20 mm. Ifindwings brownish 

 grey ; cilia slightly paler throughout, especially along their base on 

 the dorsum of the tornal lobe. Abdomen brownish grey, with 

 slender white lines along either side of the dorsum. Legs white, 

 with smoky black patches at the base of each pair of white spurs. 



Type (98768); <$ (98769); (98801) Mus. Wlsm. 



ffab. TENERIFE: Forest de la Mina, 7. IV. 1904 (Eaton}', 

 Guimar. Bystropogon plumosus, 28. Ill, excl. 4. IV - 29. V. 

 1907 (Wlsm.)\ La Laguria, 23. IY. 1907 (Wlsm.). Forty-three 

 specimens. 



Some varieties assume a decidedly browner tint than the type, 

 and in these the white cilia are often so modified by the extension 

 of the brown suffusion, especially within and below the fissure, as 

 to alter considerably the general appearance of the insect : there 

 are several intermediate degrees of such modification in a bred 

 series. 



The larva feeds on Bystropogon plumosus, drawing together the 

 leaves and young no wer-buds on the leading shoots; it attains a 

 length of 11 mm., and is very pale glaucous green, covered with 

 short and somewhat spatulate hairs, among which longer diverging 

 hairs, arising each from a minute brownish pimple, are ranged in 

 groups along either side of a faint greyish dorsal shade and along 

 the spiracular line ; the head is very pale amber-brown. The pupa, 

 which has a line of elongate black spots along the dorsum, is 

 covered with scattered groups of hairs of varying length, the 

 shorter ones not spatulate as in the larva,. It is attached poste- 

 riorly to the leaf of its food-plant without a,ny encircling band. 



I received this insect first from the Rev. A. E. Eaton, taken 

 in the Forest of La Mina, and lately found it abundant above 

 Guimar, but, like its food-plant, it is somewhat local. It reminds 

 one closely of Gypsochares baptodactyla Z., and is very similarly 

 coloured, but the lobes of the hindwings are more slender and the 

 fissure of the forewings somewhat deeper. There is a very notice- 

 able difference also in the pupa : that of Gypsochares baptodactyla 

 has a line of conspicuous elongate black spots on either side of the 

 dorsum, whereas the pupa of lystropogonis has but one medio- 

 dorsal line of spots. 



5. (1365-1) ALUCTTA PARTICILIATA, sp. n. 

 (Plate LI. fig. 3.) 



^*Aciptilia tetradactyla Kbl. Ann. KK. Hofmus. VII. 263, 280 

 no. 39 (1892): XXL 43 no. 177(1906). 



Antennae white, speckled a-bove with brownish grey. Palpi 

 Correct, slender ; whitish, with a dark spot at the base of the 

 terminal joint, which extends a little beyond an obtuse short 

 frontal tuft. Head and Thorax brownish ochreous. Forewings 

 brownish ochreous at the base, blending to pale straw-whitish 

 beyond ; costa narrowly smoky blackish, this colour suffusing the 

 "whole of the costal cilia, except about the extreme apex ; the 

 [6] 



