136 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
quickly. Not content with constructing the orifice to its gallery 
at a place where there is a natural slope of the ground, and where, 
therefore, when it leaves its home in search of food the trap-door 
will fall into its socket and keep the cellar closed till its return, 
the spider has actually employed a weight to make the lid shut 
more securely. On the under surface of the lid, in many instances, 
a small pebble is fixed, woven on by means of a silken web, and 
this serves to hold the door fast, even when gusts of wind are 
sweeping along the exposed ground, The spider itself has a most 
formidable pair of fangs, and from the fact that their bases are 
furnished with a series of sharply pointed barbs, the creature 
derives its name of Cteniza, from the Greek word (xrevs) signifying 
“a comb.” 
Mr. Anderson Fergusson exhibited some rare Ayrshire Coleoptera, 
including (1) Geotrupes typheus, Linn., which was first recorded 
in Scotland by Don, in ‘Headrick’s Agriculture of Forfarshire 
(1813). It was again recorded for the same county in Wilson 
and Dunecan’s Entomologia Hdinensis (1834), and in recent 
years has been recorded in the Annals of Scottish Natural History 
by Messrs. Lennon’and Douglas for Kirkcudbrightshire, and Mr. 
William Evans for Arran. The specimens exhibited, two males 
and a female, were found by Mr. Thomas Wilson, in?April, 1895, 
on Irvine Moor ; and another male was found in the same locality 
in May by Mr. Wilson. (2) Lampyris noctiluca, Linn., the Glow- 
worm, from Barr, of which one male and two females were shown: 
Tt has also been recorded from Girvan, but appears to be very 
uncommon in Ayrshire. (3) Heliopathes gibbus, F., two specimens 
from Irvine Moor, found in April, 1896, and one found in 1895 
at Prestwick. The Irvine specimens were all found under little 
heaps of sand about the size of a worm-cast. If the heap was 
disturbed, the beetle was found lying just beneath the surface of 
the sand. (4) Zxomias araneiformis, Schrank,-—Several examples 
of this species were taken in a moss in a locality near Ayr in 1893; 
and in June, 1896, Mr. Fergusson found one near Barr. Mr, 
Morris Young has also taken it in the Paisley district. This is 
an addition to the Scottish list. It is not, however, strictly 
speaking, a new Scottish species, as, although not included in Dr. 
Sharp’s list, Murray had included it in his “Catalogue” as occasional. 
(5) Acanthocinus edilis, Linn., which was found on the wall of a 

