18ti6] 19 
and in colour dirty white ; their rows of spots changed to reddish-brown, a pair of 
small dots only on each segment being black, and their bristles seemed more 
prominent. And seeing them in this dress at such a time, one could not help 
thinking that it was meant to assimilate them whilst torpid to the withered stems 
of their old food plants. 
Some time in February they began to part company and to feed again, and not 
long after — having moulted — they appeared in a greenish-grey coat, with a row of 
pale primrose spots on each side of the dorsal rows of black X-like spots. Finally 
the ground colour became much more vivid, either of a bluish-green or else of a 
rich yellow-green, but the rows of black spots on the back retained their X-like 
form, and this seems to me to be one of the chief distinctions by which this species 
may be known from filipendulce, these dorsal rows in the latter being formed of a 
broad and a narrow black spot alternately. Their cocoons may be distinguished 
by their colour — that of trifolii being yellow, while that oi filijjendula} is white. 
By the way, has it been recorded before that Burnet larvge cast their skins, not 
by creeping out of them through a sjilit in front, but simply by standing still, and 
bui'sting them open all down the middle of the back ? and singular they look just 
at the change, with half their old coat lying in a crescent-shape on either side of 
them. — John Hellins, Exeter, February 7, 1866. 
Note on Lithocolletis mines in Sorbus torminalis. — Last winter I found Litho- 
colletis mines in the upperside of leaves of Sorbus torminalis. These produced, as 
might have been expected, Lithocolletis corylifoliella. I have also found the mine 
of this species in leaves of Sorbus aria. — C. G. Barrett, Haslemere, Jan. 17, 1866. 
Observation on tivo species of Harma.— In the last part of the " Exotic Butter- 
flies" Mr. Hewitson has figured and described a female insect, belonging to the genus 
Harma, under the name of H. Hypatha, and states that it is placed in the British 
Museum Collection as the female of H. fumana, of Westwood ; he also makes some 
remarks on their non-resemblance, and concludes by considering it a distinct 
species. 
We do not, however, possess the species figured by Mr. Hewitson, and I think 
the insect which, in our collection bears the name of H. fumana $ , is undoubtedly 
the female of that species. It agrees with the male even more closely than some 
of the allied species do. 
fl. fumana $ Westw. differs from H. Hypatha $ Hew. in having the hinder 
margin of the front-wings distinctly lobed below the apex : in pattern and coloration 
it differs as follows : — 
Front-wings above with the row of white spots much nearer the centre of the 
front margin, no red band within the cell. 
Hind-wings ; markings much less distinct ; outer margin clear, ochreous, as in 
the male, with no broad marginal brown border or sub-marginal waved line. 
Front-wings below with no central red band, white spots as above. 
Hind-wings ; central red band much more irregular and less distinct ; the rest 
of the markings as in male, but less distinctly defined. — A. G. Butlek, Assistant, 
Zoological Department, British Museum. 
