128 Analytical Notices of Books, 



The leading features of Mr. Dillwyn's Observations on the 

 Fossil Shells of the diflferent strata, tend more especially to esta- 

 blish the hypothesis, " that the Shells of unknown families are 

 confined to the beds below the lower oolite. In all the upper 

 formations a relationship is completed between fossil and recent 

 shells, in the following regularly approximating series. In the 

 secondary strata above the lias as to Natural Orders^ in the 

 London Clay as to genera^ and partially as to species in the Crag, 

 in which alone any fossil can be completely identified with a 

 liTing species." 



British Entomology ; or Illustrations and Descriptions of the 

 Genera of Insects, Sfc, By Joun Curtis, F.L,S., Nos. xiii. — xvi. 



The first of these numbers contains 1. Platypus cylindrus, a 

 Bostricidous insect, which has occurred only once in this country, 

 but at that time in the greatest profusion ; discovered by Mr. 

 Bydder in the New Forest : 2. Onthophagus Taurus, from the 

 sane locality ; a very common continental species, but of which 

 the specimen figured, taken in October last, is the only one 

 hitherto discovered in Britain : 3. j^geria ichneumoniformis, a 

 very rare species, the Sphinx vespiformis of Haworth's Lepidoptera 

 Britannica : and 4. Lophyrus Pirn, 



The fourteenth number comprises 1. Melasis buprestoides : 2. 

 Eulepia Cribrum, a new genus formed to include this species, 

 which is new to Britain, and the Bombyx grammicus, and dis- 

 tinguished chiefly from the Arctiadae by its oblong, incumbent, 

 and convolute wings, the inferior ones being much folded : 3. 

 Leptocerus ochraceus ; a new species of a Phryganeous genus 

 established by Dr. Leach : 4. Cryptus pallipes, Leach, Zool. 

 Misc. 



In the fifteenth number we have figures of 1. Cossonus Tardii, 

 a new species of considerable size discovered by the gentleman 

 after whom it is named, under the bark of decayed hollies in the 

 County of Wicklow : 2. Cossus Ligniperda, a very beautiful 

 variety of the female : 3. Anthidium manicatum, Lin. and Kirby 

 Mon. Ap. Ang. **c, 2. i3. : 4. Dolichopeza sylvicola, a new 



