54 



XLVIII. — Notice of some Peculiarities in the Cornea of the Eyes of cer- 

 tain Insects. By Robert J. Ashton, Esq. 



The object of Mr. Ashton's paper is to point out that the facets of 

 which the eyes of insects are composed, are frequently of very differ- 

 ent dimensions : thus in Libellula vulgata each eye is divided by a 

 somewhat sinuous line across the middle ; the facets below the line 

 being only one-iifth of the size of those above ; in Scseva selenitica the 

 larger facets occupy the upper part of the cornea, and run down the 

 centre of the eye in the form of a tongue ; and in Asilus crabronifor- 

 mis there is only a narrow portion of the anterior part of the cornea 

 composed of large facets. In Volucella inanis the diminution of the 

 size of the facets is gradual and regular. The author has observed a 

 greater degree of opacity in the upper or larger facets, 



XLIX. — On Insects and their Larvse occasionally found in the Human 

 Body. By The Rev. F. W. Hope, F.R.S. and Pres. Ent. Soc. 



The object of Mr. Hope's paper is to show that independently of 

 Entozoa, true hexapod insects have been found in the human body : 

 for this purpose he has constructed a table, exhibiting upwards of a 

 hundred instances in which this kind of parasitism has been proved ; 

 the table is divided into columns, giving the name of the insect, the 

 authority, country, reference to the record or figure ; the local affec- 

 tion, sex, age and station in life of the sufferer ; the date, result, and 

 name of museum in which the specimens are preserved. The as- 

 certained species of insects are Sphodrus leucophthalmus, Dytiscus 

 marginalis, Dermestes murinus and lardarius, Paederus elongatus, Ox- 

 yporus subterraneus, Staphylinus splendens, politus, fuscipes and 

 punctulatus, Geotrupes vernalis, Tenebrio molitor, Blaps mortisaga, 

 Meloe proscarabicus and Maialis, Balaninus nucum, Forficula auricu- 

 laria, Pontia Brassicse, Crambus i^inguinalis, Phrygania grandis, Mus- 

 ca larvarum, vomitoria, Caesar, carnaria, domestica, nigra and cibaria, 

 Helophilus pendula, GEstrus Bovis, Hominis and Guildingii, besides 

 unascertained species of Melolontha, Mordella, Noctua and Stratiomys. 



Edward Newman. 



