4-80 HISTORY OF ENTOMOLOGY. 



In this arrangement of the tribes, as he calls them, of 

 Mandibulata, Mr. MacLeay sets out from the Coleoptera, 

 which he distributes, according to the supposed typical 

 forms of their larva, into five minor groups, sufficiently 

 noticed on a former occasion a . From this tribe or Order 

 he proposes to pass by Atractocerus to the osculant Order 

 Strepsiptera, and from mence by Myrmecodes and the 

 Ants to the Hymenoptera. From hence he next pro- 

 ceeds to his Trichoptera; in which, as we have seen a , 

 he places not only Phryganea L., but also TentJiredo L. 

 and Perla Geoffr., making his transit by Sircx L. ; form- 

 ing an osculant Order which he denominates Bomboptera. 

 From this his way to the Neuroptera is by the Perlides, 

 with Sialis as an osculant Order under the name of Me- 

 galoptera : he enters by Chauliodes, and leaves it by 

 Panorpa or Raphidia by means of Borcus, forming also 

 an osculant Order (Raphioptera) for the Orthoptera / 

 which he enters by Phasma, Mantis, &c., and leaves by 

 GrylluS) entering the Coleoptera again by the osculant 

 Order Dermaptera formed of Forficula L. : and thus re- 

 turning to the point from which he set out b . He has 

 not, how T ever, made this return of the series into itself 

 so clear in each order, excepting in the Orthoptera, as 

 he has done in the whole Class or Sub-class. Thus in 

 the Coleoptera there appears no particular affinity be- 

 tween the Predaceous and Vesicant beetles, his first and 

 fifth forms c , or his Chilopodimorphous Coleoptera, and 

 his Thysanurimorphous. 



To enter fully into his doctrine of Analogies would 

 lead us into a very wide field, and occupy a larger space 



a See above, p. 382. h Hor. Entomolog. 420. 



c Ibid. 422. 



