M. Latreille's Families Naturelles du Regne Animal. 427 



was killed lest the beauty of her appearance should be impaired 

 by disease or age. Her skin was preserved, and it is now ex- 

 hibited in the Galleries of the Museum d'Histoire Naturelle. 

 The absence of the spurs, and the less degree of development of 

 the red circum-orbitar membrane, are the only circumstances 

 which indicate externally its real sex. 



The production of M. Duponchel is a " Monograph," or rather 

 *' 5pedey," " of the Genus Erotylus" of which we could not avail 

 ourselves otherwise than by transferring it entire to our pages. 

 Some idea may be formed of the industry displayed in it by 

 the number of new species described, which exceed in the pro- 

 portion of nearly four to one those noticed by previous authors 

 which have fallen under his observation. The total number of 

 species which he has characterized from the collections of the 

 Museum, and of MM. Latreille and Dejean is ninety, eighty- 

 six of these being figured in three plates. As a supplement he 

 adds from the works in which they are noticed, the characters 

 and descriptions of twenty-four. other species which he has not 

 been enabled to see. Of these many are, however, referable to 

 other genera, to Doryphora., Helops, &c. and are consequently 

 no longer to be enumerated among the Erotyli. Several of the 

 true Erotyli contained in this latter list exist in the London 

 Cabinets, from which source other still undescribed species 

 might be added to those of M. Duponchel, who will, we trust, 

 be speedily induced to illustrate other genera of Coleopie?'a in the 

 same able manner, in which he has performed this, which we 

 believe to be his first entomological undertakinsj. 



Families Naturelles du Regne Animal^ exposees sucdndement 

 et dans une ordj'c Analytique^ avec Vindication de leur 

 Genres. Par M. Latreille, Membre de Vlnstiiut, Sfc. 

 Paris. 8vo. pp. 570. 



When noticing in our last number the arrangement of Mol- 

 lusca proposed by M. Latreille we adverted brieflj to the cir- 

 cumstances which had rendered it necessary for that excellent 



