128 Analytical Notices of Books. 



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

 Fossil Shells of the different 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 

 living species." 



British Entomology ; or Illustrations and Descriptions of the 

 Genera of Insects, Sfc. By John 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. JEgeriaichneumoniformis, a 

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

 Britannica : and 4. Lophyrus Pini. 



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 Arctiada; by its oblong, incumbent, 

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

 Leptoceriis ochraceus ; a new species of a Phryganeous genus 

 established by Dr. Leach : 4. Crypius 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 mnnicatum, Lin. and Kirby 

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



