516 LOCAL DISTRIBUTION OF INSECTS. 
pits, under a wood in an adjoining parish, has produced 
me several valuable insects. Here I took Apion ebeninwn, 
Orobilis globosus, a new species of Evasthctus, several of 
the rarer Pselaphidce and Choleva?, and Cha?tophorus 
cretifer before noticed a . I do not mean, however, that 
all these are properly chalk insects ; but they fall into 
these pits, where they are readily discerned, from the 
contrast of their colours with the whiteness of the chalk. 
By watching attentively the bottom of one, vast numbers 
in a warm day may be taken when they fall or are climbing 
upwards. Of all soils clay offers the fewest inducements 
to the Entomologist, who will lose both his time and 
labour in a clay-pit ; while in one of sand, chalk, or marl, 
they will usually not be mispent. Vegetable earth also 
affords a harbour to various larvae, and the pupae of 
many nightfliers amongst the Lepidoptcra, by digging in 
it, especially under trees, may be obtained. Even the 
bare rocks have their insect frequenters that take shelter 
in their fissures ; and in the early part of your career 
especially you should always turn over large stones, as 
beneath them many of the Harpalidce and other Eutre- 
ch'ma frequently lie hid : and in this situation, both in 
Suffolk and Sussex, Lomechusa anarginata, one of our 
scarcest Brachyptera, has been taken. Old trees also, 
and planks that have laid long without being moved, 
often afford a shelter to many of the minute Coleoptera ,- 
as Pselaphidce, Alcocharidce, Cryptophcigidcc, Scymnidcc, 
&c. Live fences, especially when the hawthorn is in 
blossom, and where trees are also intermixed, are attend- 
ed by innumerable insects of almost every description ; 
and even the black-thorn will present you with one of 
Vol. II. p. 255. 
