Geulofjical Socidij. 455 



March 6. — George NewiJort, Esq., President, in the Chair. 



Mr. Edwai'd Doubleday exhibited a volume of drawings of Lepi- 

 dopterous larva?, executed by the grandson of the late Mr. Standish. 

 Also two plates of InCixim Lcpidoptera {Charaxes, sp.) since published 

 in the ' Annales' of the Entomological Society of France. 



Mr. F. Bond exhibited specimens of Polyommutus Avion and An- 

 throcera Loti, taken at Barnewall Wold, Northamptonshire, in Ju\y 

 1842. 



Mr. Westwood exhibited an extensive series of Goliath Beetles of 

 the genera Rhomborhina and Trigonophorits, from the collection of 

 the Rev. F. W. Hope, including several new species recently ob- 

 tained in a large collection of Indian insects. Also a drawing of a 

 larva received from J. Walton, Esq., as that of a species of Bruchus 

 found in the interior of beans, but which Mr. Westwood regarded as a 

 Icjjidopterous larva (possessing four pairs of ventral and one pair of 

 anal prolegs, in addition to six thoracic feet). No lepidopteroiis larva 

 had however been hitherto observed possessing such habits. 



A letter was read from W. Spence, Esq., relative to the action of 

 the pulvilli of flies and other insects cajiable of walking upon upright 

 or inverted planes of glass, &c. 



" Descriptions of some new species of Alcides (a genus of Curcu- 

 lionidcc) from the Philippine Islands." By G. R. Waterhouse, Esq. 



GEOLOGICAL SOCIETY. 



Feb. 21, 1844, continued. — The following papers were read : — 



" Remarks on Sternbcrgia" By Mr. J. S. Dawes. 



The author considers the fossils of this anomalous genus of extinct 

 vegetables as merely casts of the medullary cavities of exogenous 

 trees, similar to that at Darlaston, lately described. The transverse 

 plates which compose the interior of some of these borders, he con- 

 siders as agreeing Avith the lamina; of the 2)ith ; and the rings on 

 the external surface of others as produced by the same cause. He 

 described si)ecimens in which the so-called Sternbergia formed the 

 centre or pith of fossil stems. 



" On a Fossil Crustacean from New Holland." By Prof. Thomas 

 Bell. 



This, the only fossil crustacean as yet found in Australia, was pro- 

 cured by Lieutenant Emery, and forwarded by Mr. W. S. Macleay, 

 who considered it as probaljly a Thalassina. Prof. Bell regards it as 

 a new Thalassina, nearly allied to the only known living species of 

 that genus, and names it T. aiitiqua. 



March 6. — A paper was read, entitled, " Contributions to the Geo- 

 logy of North Wales." By Mr. Daniel Sharpe. 



The observations contained in this memoir were made during a 

 tour through a large part of North Wales, with the object of endea- 

 vouring to ascertain what beds lie below the Silurian rocks which 

 have been described by Mr. Murchison, and whether any organic 

 remains are to be found in them. Mr. Sharpe enters into full par- 

 ticulars on the geology of many localities, commencing at Llangollen, 



