266 
in his British Entomology.* | Monochamus is said to be “a genus 
rich in species distributed nearly throughout the old world and 
in Nerth America.” 
The Monochamus dentator, the species to which the Bath captures 
belong, is well distinguished by the compressed intermediate 
tibiz, with a small toothlike process on the dorsal edge towards 
the apex. In reference to its occurrence in Bath, it appears that 
this is not the only instance in which it has been taken in this 
country. In the first, and only volume that was ever published, 
of the Transactions of an old Entomological Society that existed 
in London many years before the present society took its rise, 
there is a notice by Haworth, the well-known Lepidopterist, of a 
specimen taken ‘‘in the area of a house in Gloucester Street, 
Hoxton, August 10th, 1806;” and, what is more, there is a 
coloured figure of it, showing it clearly to be identical with the 
two insects taken near Bath. <A copy of this rather uncommon 
book is in the Jenyns Library, where such members of the 
Club as are interested in the subject may see the representation 
alluded to. 
I am informed also by Mr. Fitch, Secretary of the Entomo- 
logical Society, that there is a specimen of the MJonochamus 
dentator in the National Collection, which was found alive at 
Caterham Valley, Surrey. 
Probably in many, if not in all of the instances in which this 
species and some other closely allied Longicorns have occurred 
in this country, the insects have been imported from abroad in 
timber. 
There is no question as to this having been the case with 
respect to the two specimens of the Monochamus dentator taken in 
Bath, looking to the circumstances under which the second 
capture was made. The timber in the yard was found, on inquiry, 
to have come from North America, where this insect is abundant. 
* Coleoptera, part IT, pl. 219. 
a 
