480 Entomological Society. 



species to be the Aranea venatoria of Linnaeus, and to belong to the 

 genus Actinopus, Pty. (Sphodros, Wick.) instead of Mygale and 

 Cteniza, to which it has been referred, a very detailed description is 

 given of a new species congenerous with the last mentioned insect, 

 of which living specimens had been forwarded to the Society from 

 Barbary by Edward A. Drummond Hay, Esq., Her Majesty's consul- 

 general at Tangiers, with the following characters. 



Actinopus aedificatorius, W. Piceo-niger nitidissimus, corpore 

 subtus pilisque maxillarum pallidioribus ; abdomine obscuro fusco- 

 sericeo, subtus ad basin maculis 4 luteis ; cephalo-thorace supra 

 et postice semicircular iter valde impresso, pedibus longitudine fere 

 aqualibus. Long. corp. lin. 14. Inhabits Barbaria. Mr. Drum- 

 mond Hay. 



Observations on the structural characters of the Death-watch, with 

 the description of a new British genus belonging to the family of 

 Psocidte. By J. O. Westwood, F.L.S. 



After noticing the inaccuracies into which several recent authors 

 have fallen relative to the structure of the Death-watch, a new Bri- 

 tish genus is characterized as follows : 



Clothilla, W. Corpus apterum. Caput subtriangulare. Antenna 



longce, articulis circiter 27. Prothorax brevis. Pedes simplices, 



tarsis 3-articulatis. 

 Clothilla studiosa,W. Luteo-albida, o cutis brunneis, antennis fuscis, 



labro albido, incisuris abdominis brunneis, pedibus albidis. Long. 



corp. lin. 1. Inhabits the interior of houses. 



February 3rd. — The Rev. F. W. Hope, President, in the Chair. 



Mr. Westwood exhibited some original drawings of Crustacea 

 made by Mr. Wallcot of Bristol, also various larvae forwarded to 

 him by Mr. Wallcot, jun., including one which that gentleman had 

 no hesitation in considering as that of Platyrhinus latirostris, which, 

 however, closely resembled the larva of a Leptura. 



He also exhibited drawings of a minute white Acarus, found on the 

 backs of books placed against a damp wall, and also of the larva and 

 pupa of a species of Latridius found in the same situation, and of an 

 exceedingly minute 6-footed Acarus (visible only with a lens of high 

 power) found amongst the hairs of the body of the last-mentioned 

 larva. 



Mr. S. Stevens exhibited a beautiful moth of large size from the 

 interior of Africa, having the appearance of the genus Erebus, but 

 with short palpi and shortly bipectinated antennae, belonging to the 

 family Bombycidce (Saturnia Isis, Westw. MSS., of which a figure 

 and description will shortly appear in the ' Naturalist's Library'). 



Mr. Hope exhibited a Scolopendra from New South Wales, in 

 which one of the two hind feet was very much smaller than the 

 other, and which was supposed to have resulted from the reproduc- 

 tion of the limb. 



The conclusion of Mr. Westwood's memoir on Trap-door Spiders 

 was read. 



