Entomological Society. 479 
_P. albida, \uteo-albida; antennis nigricantibus, alis anticis albis farinosis 
apicem versus fuscescenti-tinctis, guttis albis sanguineisque ornatis. 
Expans. alar. lin. Insula S*t Vincent. D. Guilding.. Mus. D. 
Hope. 
Cencurea. Frons capitis partim producta. Oculi magni, emarginati. 
Ocelli 2. Antenne minute, articulo 2do brevi subrotundato. Pro- 
thorax latus, lateribus concavo-dilatatis pro receptione antennarum. 
Alz anticz elongate, angulo antico apicali valdé obtuso, venis per- 
paucis longitudinalibus. 
C. dorsalis, pallidé testaceo-fulva; alis anticis flavescentibus. margine 
interno fuscis apice punctis duobus purpureis. Expans. alar. lin. In- 
sula Sti Vincent. D. Guilding. Mus. D. Hope. 
The species above described, together with their structural cha- 
racters, and especially the variations in the direction of the veins of 
the wings, were illustrated by numerous magnified figures. 
ENTOMOLOGICAL SOCIETY OF LONDON. 
Jan. 6th, 1840.—The Rey. F. W. Hope, M.A., F.R.S., &c., Pre- 
- sident, in the Chair. 
The President announced the safe arrival of W.S. Macleay, Esgq., 
and his collections in New South Wales, and his intention to publish 
descriptions of various remarkable Australian groups. He had as- 
certained that the Agariste are diurnal in their flight, thus confirm- 
ing their relation with the Urania, as suggested in his memoir in the 
Transactions of the Zoological Society. 
Mr. Westwood announced the capture of a species of Cerapterus 
(but forming a separate subgenus) near Rio Janeiro, all the other 
species of the family Pausside being inhabitants of the old world. 
Mr. Waterhouse exhibited some remarkably small specimens of 
Garden white butterflies, captured in Devonshire, but very confined 
in their locality. 
The President exhibited specimens. of Goliathus torquatus 2, Eu- 
dacilla Morgani, and other rare insects, recently received by him from 
Sierra Leone; also a new species of Adelotopus and another genus 
allied thereto, with other insects from New Holland. 
Mr. Westwood exhibited a living specimen of Clerus alvearius, 
which he had recently reared from a nest of Osmia muraria, brought 
by him from France two years and a half previously. 
The following memoirs were read : 
Description of a new species of Trachyderes. By Edward New- 
man, Esq., F.L.S. 
Trachyderes venustus, N. Piceus, elytrorum fusciis duabus maculd- 
que singuli subrotundd apicali lete stramineis: scutello elongato 
sublineari medio longitudinaliter impresso, piceo. Corp. long. 1, 15 
unc. Inhabits Demerara. Mr. Schomburgk. 
Observations on the species of Spiders which inhabit cylindric 
tubes, covered with a moveable trap-door. By J.O.Westwood, Esq., 
F.L.S. 
After noticing the various species of Spiders which have been de- 
scribed as making trap-door nests, and determining the West Indian 
