38 
Psyche 
[February 
(5) The Saltatorial affinities of the family are undoubted 
as Walker was the first to demonstrate. My contention is that 
they are insufficient to warrant its transference from the Cur- 
soria. The most important character is the exserted ovipositor 
ot the Tettigonid type but here, as Walker has shown, it is 
constructed on a somewhat more primitive plan. The presence 
of the vaginal orifice between sterna 8 and 9 affords another 
character of the Saltatoria but is it also shared with the Phasmidse. 
The general resemblance of the head to that of the Gryllidse 
has been pointed out by Walker and subsequently by Crampton. 
The antennae, on the other hand, show no such affinity and are 
definitely Embiid in character. The mouth-parts yield no 
decisive data although in some particulars they exhibit slight, 
but unconvincing, resemblances to those of the Gryllidae. 
(6) The full evidence of internal anatomy is at present 
unavailable but when Miss Ford's study of this aspect is com- 
pleted we shall be in possession of data of considerable impor- 
tance. Her recent study of the abdominal muscles (1924), 
however, indicates that the Grylloblattidse betray Blattid and 
Mantid relationships rather than affinities with the Saltatoria. 
In conclusion,, it is hoped that the present article sufficiently 
explains the grounds for including the Grylloblattidse as a family 
of the group Cursoria of the Orthoptera ( sensu lat.) I wish to 
thank thank Miss Norma Ford for kindly supplying me with a 
well preserved example of the species Grylloblatta campodeiformis. 
Literature. 
Crampton, G.C. 
1926. The Affinities of Grylloblatta indicated by a study 
of the Head and its Appendages. Psyche , vol. 32, pp. 
78-85, (other papers by this author are listed here). 
Ford, N . 
1924. A Comparative Study of the Abdominal Musculature 
of Orthopteroid Insects. Trans. Roy. Canad. Inst., vol. 
14, pp. 207-319: pis. 7-23. 
