is as follows, aiul which, as yet, 1 see no reason for changing, although, as 

 there stated, I have some doubt as to the proper position of the Forficulidge : 



Sub-order 1.- — Pseudo-Orthoptcra Fam. 1. — Forticulidse. 



Sub-order II. — Orthoptera genuina: 



Tribe 1. Cursoria . Fani. 2. — Blattida;. 



( Fam. 3. — Mantidse. 



Tribe 2. Gressoria 



C Fam. 4. — Phasmidse. 

 Tribe 3. Saltatoria : * 



Sec. 1. Brevicaudes Fam. 5. — Acrididse. 



C Fam. 6. — Locustidai. 



Sec. 2. Ensicaudes 



( Fam. 7. — Gryllidse. 



While I l>elievc this is the most natural arrangement of the genuine 

 Orthoptera that can be adopted, I do not consider the series as continuous 

 throughout, but look upon the Locustidse and Gryllidte as parallel to each 

 other, some genera of the former standing higher in the series than any of 

 the latter, while other genera reach, perhaps, a lower point in the scale. 



The arrangement of the subdivisions of the Acrididse, although differing 

 considerably in the worlds of the various authors, yet, in regard to the relative 

 position of the groups, has been subject to much less variation. 



I give below some examples illustrating the method which has been 

 adopted in reference to these subdivisions. • 



Linnaeus, in the 13th edition (12th reformed) of his " Systema Naturae,'' 

 divides this family into three groups : 



* Head conical, longer than the thorax ; antennae ensiform AcrUJa. 



** Thorax cariuated ; autennaj shorter than the thorax ; filiform Bulla. 



•** Tail simple ; antennae filiform Locusta. 



The first of these corresponds to Truxalides, the second to Acrydia, and 

 the third to Grylli of Fabricius. 



Serville's arrangement is as follows : 



I. A pulvillus more or less distinct between the claws of the tarsi ; 

 mouth not covered. SpoiifjiphorL 



A. Antennae sub-conic, not more than 8 joints, shorter than the 



. head, which is pyramidal or horizontal : body always apterous. . Proscopides. 



B. Antenme as long or longer than the head, and prothorax united, 



multi-articulate : 



a. Face more or less oblique ; antennae ensiform ; head pyr- 

 amidal or prolonged in front Truxalides. 



