DESCRIPTIOXS OF ORTHOPTERA FROM S. W. ASIA. 
733 
distributed from Transcaspia to Sahara and from Persian Gulf to Syria. The 
characters given by BoUvar (l.c.) as separating albidula, Serv., from curvipes 
Redt., are not specific but individual. 
50. Tropidopola obtusa, sp. n. (fig. 2). 
Tn studying a rather extensive series of Tropidopola (\.2^ 139 9) taken 
in different parts of the Desert region, and comparing these specimens with those 
of Tropidopola cylindrica, Marsh, from Greece and Macedonia, I came to the 
conclusion that the desert species is not cylindrica, as it has been identified by 
all authors, including myself, but is well distinct from it. As it, however, agrees 
with cylindrica in all characters, except structure of the head, which is quite 
different and very constant throughout the series, I think it unnecessary to 
give a full description of the new species, and the following key together with 
drawings must be sufficient for separating it from cylindrica : — 
Fig. I. A. Tropidopola cylindrica 'Ma.rah, 
B. Tropidopola obtusa. sp. n. 
1 (A) Head not thicker than pronotum, gradually narrowed anteriorly. 
Front long, more reclinate, in profile quite straight ; frontal carinm 
straight, converging gradually towards fastigium. Fastigium of 
vertex (fig. 1) distinctly longer than its base wide ; its sides straight, 
apex subacute. Eyes more elongate. Antennae distinctly flattened 
with median joints subquadrate , T. cylindrica Marsh. 
2 (B) Head a little thicker than pronotum. Front shorter, less reclinate ; 
in profile slightly convex ; frontal carime subparallel, suddenly 
converging between the base of antennae and fastigium. Fastigium 
of vertex (fig. 2) not longer than its base wide ; its sides convex ; apex 
rounded. Eyes shorter and broader. Antennae scarce^ flattened 
with median joints distinctly longer than wide. Length of body of 
the type (female) 35mm. ; of pronotum 6, 5 ; of elytra 26 ; of hind femur 
14, 5 T. obtusa, sp. n. 
The type is from Qualat-Salah, Mesopotamia, 6, i., 1918, P. A. Buxton. Other 
specimens of T. obtusa studied by me were from following localities: — 
Mesopotamia : Amara, Basra, P. A. Buxton ; S. Persia : Fao, D. Cummings, 
River Karun, Mohamarra, K. C. Mabbs (British Museum) ; Susa, J. dcMorgan 
(Paris Museum). 
Two specimens taken by Dr. Buxton in Mesopotamia (l^J from Basra,12, viii, 
18 and 19 from Amara, 18, vii, 18) differ from all others by their fight green 
coloration, which is more fresh in 9 > while the male is slightly brownish from 
above ; both specimens are also larger than usual, and have longer antenme 
