Eiifomolof/icdJ Socictij of British Cohiuihia 13 



The Order Ortluiptera may be divided into seven families. 



1. GRYLLOBLATTIDAE. 



2. BLATTIDAE (Tlie Cnckroaehes). 



;3. MANTIDAE (The Soothsayers or Praying Insects). 



4. PHASMIDAE (The Leaf and Stick-Insects). 



5. ACRIDIDAE (Tlie Short-horned Grasshoppers). 



fi. TETTIGONIIDAE (The Long-horned Grasshoppers). 

 7. GRYLLIDAE (Tiie Crickets). 



At the present time we liave representatives of tive out of the seven 

 families reeoi-dcd from l^ritisli Cohimhia. 



No Grylloblattidae or Phasmidae liave as yet been recorded from 

 tjiis ])roviiice. Thi' family Grylloblattidae contains but a single species 

 Grylloblatta campodeiformis. E. M. Walker. This species was described 

 from two females which were found running about like centipedes under 

 the stones of a talus-slope at an altitude of about 6500 feet on Sulphur 

 Mountain, Banff, Alberta, on June 'Jllth. 19ia. by Dr. E. M. Walker. 



Family 1. GRYLLOBLATTIDAE 



Grylloblatta campodeiformis E. M. Walker. This species has not as 

 yet been recorded from British Columbia. The type material was 

 secured by Dr. E. M. Walker on Sulphur Mountain, Banff, Alberta; 1913. 

 This new family, genus and species is described by Dr. Walker in the 

 Canadian Entomologist, Vol. 46, p. 93, 1914. 



Owing to the proximity of Banff to the British Columbia boundary 

 line it is probable that further search \\'\\\ iind these exceedingly inter- 

 esting insects in the British Columbia Rockies as well as in the Alberta 

 Rockies. 



Family 2. BLATTIDAE 

 (The Cockroaches) 



The Blattidae may be defined as: *"Orthoptera with all the legs 

 more or less alike; the large and free coxae entirely covering the ventral 

 surface of the thorax and the base of the abdomen ; tarsi of five segments. 

 Head in repose, bent under the thorax, so that the fore part points back- 

 wards ; antennae long and slender (there being often nearly a hundred 

 segments). Pronotum shield-like, frequently quite concealing the head. 

 Wings with the anal region capable of fan-like folding (but the alar 

 organs are variable and sometimes entirely absent). Cerci, variable in 

 shape and size, present in both sexes; a i)air of slender styles also usually 

 present in the male." 



Records of British Columbia Blattidae 



Although a considerable number of exotic insects, including Blat- 

 tidae, are doubtless received at the Port of Vancouver in shipments of 

 *W. B. Lucas. A Monograph of the British Orthoptcra, p. 63, 1920, 



