31 
another direction to Australia. Except that the wings are longer and 
narrower than in Acidalia, and that the bindtitia of the $ is°armed 
with two spurs (in this resembling Pylarge H.-S.), it does not show 
much to distinguish it from Acidalia. I was therefore greatly 
interested in submitting an example of an Indian representative, 
Lycaitges det'amataria, Walker, to Mr. Burrows. He replies that its 
case—like that of many problems which the serious student tackles— 
“ is one of those which invite questions.” “ The formation is entirely 
Leptomerid [Acidaliid. in sensu L.B.P.], but the prongs are not here 
upon the angles of the base of the apron, but are placed upon the 
extremity thereof. This, if it proved regularly to accompany the 
wing and leg differences, should help to establish the generic validity 
of. Lycaitges, while at the same time it certainly helps to indicate the 
affinity. Of course when I have the material, the time, and the hardi¬ 
hood, I shall worry Mr. Burrows with further species of Lycaitges. 
Meanwhile, Dr. Culpin has “set the ball rolling” in another direction. 
On September 26th last, he obtained eggs from a ? of Lycaitges lactea, 
Butt., the type of the genus, and he was considerate enough to prepare 
one skin of a larva in its last instar, and send it to me through the 
post. This has been placed in Mr. Bacot’s hands, and he reports as 
fellows :— 
Larva of an Acidaliid from Shanghai ( Lycaitges lactea, But!.).— 
A skin pressed as for blowing, and left in the flat, in good preservation. 
It gives a good idea of the general coloration and pattern, although 
the former has probably faded somewhat. It also shows conspicuously 
the subsegmental folds of skin which, together with the slenderness, 
suggest a form similar to the group to which incanata belongs [i.e., 
Acidalia , sens. str.—L.B.P.] . Length 17mm., width a shade under 
2mm., narrowing towards head. These measurements suggest a less 
slender larva than it in all probabity was, as the skin has not, 
apparently, been stretched in length but in width by the rolling 
process of squeezing out the body contents. 1 should estimate that 
the larva was probably 20mm. in length at least, and not more than 
l - 25mm. in diameter. 
“ The coloration is now pale umber with darker mottlings and 
specklings; these are massed so as to form a dark band down the 
dorsal area leaving an irregular and narrow, pale, medio-dorsal streak; 
the lateral areas are more or less free, producing a broad pale-coloured 
spiracular band ; the ventral area again darker. 
“ The head has suffered considerably by the flattening process,* 
but there is nothing to suggest that it might not have been of the 
incanata type. Its colour must have been paler than the general 
body surface, and the dark markings are apparently raised rugosities 
of surface producing a dark and rather sparse speckling; this also 
applies to the scutellar plate. 
“ The spiracles are dark and conspicuous, that on the prothorax 
being very large in comparison with the enlargement of those on the 
7th and 8th abdominal segments. 
“ The skin surface is not rugose so far as I can detect without 
mounting; the subsegmental wrinkling very marked. The few hairs 
* It is too firmly attached to the paper to be safely detached and turned. 
XX. 
