526 



Japygidae, is very peculiar, the metathorax having- two pairs, 

 while the abdomen has only seven pairs, the last being situated 

 on segment seven instead of eight. Borner has suggested that 

 this arrangement has come about through a forward movement 

 of all the abdominal spiracles on to the segment next in front 

 of that on which each pair was originally developed. 



Order Grylloblattoidea. 



A fine female of the wingless Gryllohlalia cauipodcifonnis 

 Walker, the only known representative of this order. I took 

 this on October 12 last at 7000 feet elevation on Sulphur 

 Mountain, near Banff, Alta., Canada, during a snowstorm. This 

 is at present the only known locality for this insect, but I have 

 little doubt that it lives on all the snow mountains around 

 Banff and elsewhere in the Rockies. It was first discovered by 

 Mr. N. B. Sanson, Curator of the Rocky Mountain Museum, 

 Banff, more than twenty years ago, but escaped notice, as 'it 

 was taken for a larval form. A few years ago Professor 

 Walker of Toronto took it, and the result of his study of the 

 insect was its elevation to the dignity of being the sole repre- 

 sentative of a new Order. It shows, relationships with the 

 Blattoids, Mantoids and also with the Isoptera, and apart from 

 its secondary winglessness, must be regarded as an exceedingly 

 generalized type, Only about six specimens are known. 



Order Zoraptera. 



A tube containing wingless specimens of Zorotypus snydcri 

 Caudell, together with a slide showing the fore and hind wings 

 of the only winged specimen of Zorotypus Juihhardi Caudell, 

 both being from Florida. The Order was founded by Silvestri 

 on specimens from South Africa and Java ; Zorotypus is the 

 only known genus. 



I visited the laboratory at East Falls Church, A'irginia, 

 where these little insects are being kept alive. They live in 

 association with Termites in rotten logs. In life they bear a 

 strong superficial resemblance to Psocids, but morphologically 

 they are more closely related to the Isoptera. The wing- 



