PSYCHE 
Vol. 85 June-Septernber, 1978 No. 2-3 
GEOGRAPHICAL DISTRIBUTION AND BIOLOGICAL 
OBSERVATIONS OF CYPHODERRIS 
(ORTHOPTERA: HAGLIDAE) 
WITH A DESCRIPTION OF A NEW SPECIES 
By Glenn K. Morris 1 and Darryl T. Gwynne 2 
Introduction 
With the exception of Prophalangopsis obscura (F. Walker) from 
India, Cyphoderris are sole survivors of a primitive orthopteran 
family, the Haglidae, abundant in the Triassic and ancestral to 
modern Ensifera (Zeuner, 1939; Ander, 1939; Ragge, 1955; Sharov, 
1968). 
There are presently two recognized species of Cyphoderris: C. 
monstrosa Uhler and C. buckelli Hebard. Their most dramatic 
distinguishing feature is the presence in C. monstrosa, and the 
absence in C. buckelli, of a prominent ventrally-directed sternal 
process, shaped like the claw of a hammer and located on the IXth 
sternum (Hebard, 1934). Specimens of both species have been 
extensively collected from mountainous areas of the North Ameri- 
can northwest. 
When Uhler established Cyphoderris in 1864 he had before him 
two adult male specimens. He published body measurements for 
both of these and there is a substantial size difference e.g. body 
length 22 mm for one specimen and only 16 mm for the other. These 
specimens are in the Museum of Comparative Zoology, Harvard 
University and we have examined them. The larger has a prominent 
‘Erindale College and Department of Zoology, University of Toronto, Missis- 
sauga, Ontario, L5L 1C6, Canada. 
department of Zoology and Entomology, Colorado State University, Fort 
Collins, Colorado, 80523, U.S.A. 
Manuscript received by the editor November 15, 1978. 
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