NORTHERN ZOOLOGY. 



PART IV. 



I N S E C T A. 



Subkingdom CondylopA; Lat. x 



Class Insecta. 



Subclass Mandibulata, Clair. 



Order Coi.eoptera, Linn. 



I. Adephaga. Clair. 2 



i. Geadephaga, Mac L. 



(a) Euptera, Kirb. 



(a) Brevicollia, Kirb. 3 



There is one circumstance which I may mention in this place, distinguishing the 

 majority of the tribes of this section — Adephaga, 4 and found also in some conter- 

 minous ones, as the StaphylinidcE and Silphidce — which demands particular attention, 

 since it has been used as a distinctive character of several of its groups : I allude 

 to the dilatation of the anterior, and in several cases also of the intermediate, 

 tarsus, in the males. But though Entomologists have paid some attention to this 

 circumstance, they appear to have gone little further, and have not made all the 

 use that they might have done, with advantage to the science, of the sexual dis- 

 tinctions observable in this part of these animals ; for they have taken little or no 

 notice of the variations in the clothing of the sole or underside of these dilated 

 joints ; speaking of it generally, except in the case of male Dytiscida?, merely as a 

 brash. Latreille, indeed, in his last work, 5 mentions papillae as well as brushes, 



1 Lat. Cours D'Ent. i, 18. These are the Annulosa of modern Zoologists. For my reasons for adopting Latreille's 

 term in preference, see my Bridgewater Treatise, ii, 17. 



2 I have not adopted, on the present occasion, the phraseology proposed in the Introduction to Entomology, (vol iv, 

 p. 393) to distinguish the different subdivisions into which each section of an Order is resolvable, in descending to the 

 families and genera, because I have not the means of applying it universally, or of making such a valuation of each as will 

 indicate at once the denomination to which it is entitled. 



3 I consider the Euptera as forming three subtribes — viz. Longicollia (Colliuris,) Brevicollia ( Cicindela) and Fissicollia 

 ( Manticora. j 



4 Carnivora, Lat. 5 Crust. Arachn et Ins. i, 401. 



B 



