2862 Microscopical Society. 



coaequale. Oculi interne eiuarginati. Mandibulse obtusre, apice transverse 

 serrato. Labium longissimum, intra femora acuforme retrorsum, cum maxillis 

 vix brevioribus, productum. Clypeus antice excavatus, labium porrectum ad 

 recipiendum et dirigendum. Tborax truncato-convexus, medio vix dilatatus. 

 Antennae, thoraci fere longitudine cosequales. Alas cellula radiali secundaque 

 cubitali appendiculatis ; cubitalibus quatuor, quarum secunda et tertia nervas 

 recurrentes accipiunt, prima magna, basi ampliori ; secunda parva subtrian- 

 gulari, lateribus antice valde approximatis, nervam recurrentem ubi medio 

 appendiculata recipienti; tertia subquadrata, externe latiori, secundum re- 

 currentem prope basin accipienti ; apicali clausa. 



Sp. 1. Raphiglossa Edmenoides. 

 Elongata, nigra, flavo-notata, antennis pedibusque testaceis, abdomine flavo-fas- 



ciato. 

 Long. corp. §— f unc. Exp. alar., 1 unc. 

 Habitat in Epiro, in rubis exsiccatis prope Sinum Ambracicum nidificans. 



Sp. 2. Raphiglossa Odynerojdes. 



Nigra, flavo-notata, labio pectoris ultra medium subtus producto ; pedibus flavis, 

 basi nigris ; abdomine flavo-fasciato ; maribus, antennis nigris subtus flaves- 

 centibus ; feminis, capite maximo, antenuis flavescentibus, prope apicem ob- 

 scuris. 



Long. corp. 6—7 lin <? , 8£ lin. J . Exp. alar. I0i lin. <J — 1 unc. ? . 



Habitat in Epiro cum praecedentibus. 



This paper was accompanied by two plates of illustrations, presented by the 

 author. 



Mr. Yarrell read a letter addressed to him by Dr. Lukis, of Guernsey, containing 

 some observations on the natural history of the Channel Islands, and stating, among 

 other thing?, that each island had to a certain extent a fauna of its own, as certain 

 reptiles, quadrupeds and insects found in one were not found in another, although 

 the distance between them was not more than eight miles in one case, and twenty 

 miles in another. Mr. Yarrell mentioned as a fact within his own knowledge, that 

 although the water in the canal at Stockbridge, Hants, was always one degree colder 

 than in the adjoining river Test, yet the May-flies invariably appeared from the canal 

 some days sooner than from the river. — /. W. D. 



Proceedings of the Microscopical Society of London, 



June 12, 1850. — Db. Arthur Farre, President, in the chair. 



Edward Hicks Finch, Esq., was balloted for, and duly elected a member of the 

 Society. 



A paper by H. C. Sorby, Esq., "On the Occurrence of Non-gymnospermous Exo- 

 genous Wood in the Lias, near Bristol," was read. After stating that it was the 

 general opinion that wood of this description did not occur in rocks, of the age of the 

 Lias, the author went on to describe a specimen of fossil wood, purchased by him a 





