#39 { November, 
“In colour it is of a deep purplish-brown, the ventral surface 
“slightly tinged with olive; the head and plate on second segment 
“deep blackish-brown and brilliantly polished, the rest of the body 
“rather shining, with a faint violet gloss. The others not quite so 
“mature, were of an olive-greyish tint, with shining black heads and 
“ plates—a pinkish gloss being on the back and sides.” 
The perfect insect occurs in May and July, and the larve from 
which the above description was taken were captured by myself, in 
Essex, in June. 
HoM@osoMA SAXICOLA, 2. sp. 
Alar expanse 7 to 8 lines. Head, thorax, and abdomen greyish 
fuscous. The ground colour of the fore-wings grey, with a fuscous 
tint. The costal stripe bifurcates about the inner third into two 
other stripes of unequal size, the larger of which is continued along 
the costa until within a short distance of the apex, and the lesser is 
continued as a streak to beyond the middle of the wing. There are 
two or three small black dots situated about the junction of the inner 
and middle third, and two or three other small dots beyond the middle 
of the wing. There is seldom any indication of a second line. Cilia 
of the ground colour. Hind-wings shining-grey, cilia paler. 
This species is closely allied to H. nimbella. 
From 4. senecionis it is readily distinguished by its smaller size, 
narrow wings, by the bifureating costal streak, by the smaller size of 
the dots, and by the darker ground colour of the fore-wing, and absence 
of the dotted second line. 
The specimens from which the above description is taken were 
reared in 1867, from larve found feeding in flower heads of chamomile 
(Anthemis), in the Isle of Man, in September, 1866. 
The larva, as well as I remember, was short, obese and greenish, 
with darker blotches on the back. 
Kentish Town: October, 1870. 
ON THE HABITS OF PLATYPUS CYLINDRUS, FAB. 
BY T. ALGERNON CHAPMAN, M.D. 
(Concluded from p. 106.) 
The newly-hatched larve are not the straight cylindrical creatures 
that the full-grown larve are, but rather flattened and disc-shaped, 
the lateral region being largely developed and each side carrying two 
