916 LORD WALSINGHAM ON THE [Nov. 26, 



slightly grey-shaded. Exj). al. 16-20 ram. Hindvnngs brownish 

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

 the dorsum of tlie tornal lobe. Abdomen bi'ownish grey, with 

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

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



Type 2 (98768); c? (98769); © (98801) Mus. Wlsm. 



ITab. Tenerife: Forest de la Mina, 7. lY. 1904 (Eaton); 

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

 1907 {msm.); La Laguna, 23. IV. 1907 (TF/sm.). 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 plumos2ts, drawi]ig together the 

 leaves and young flower-bucls on the leading shoots ; it attains a 

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

 short and somewhat spatulatehaii-s, among whicli 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 ambei'-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 

 shoi-ter ones not spatulate as in the larva. It is attached poste- 

 riorly to the leaf of its food-plant without any 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 liindwings are more slender and the 

 fissure of the foreAvings 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 bystropogonis has but one medio- 

 dorsal line of spots. 



5. (1365'1) Alucita p articiliata , sp. n. 

 (Plate LI. fig. 3.) 



=*AciptiUa tetradactyla Rbl. Ann. KK. Hofmus. VII. 263, 280 

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



Antennae white, speckled above with brownish grey. Palpi 

 porrect, 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. Foreicings 

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

 beyond ; costa narrowly smoky blackish, this colour suflusing the 

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



