DESCRlPTlOyS OF ORTHOFTEliA FROM S. ir. ASIA. 
735 
54. Thisoecetru-s DORSATUS, F.-W. — Mesopotamia: Sinn.-Abtar vi, 16, G- 
C. Shortridgc (Bombay Society). 
55. This<ecetrus pulcher, Bob — Baluchistan : Gaza Kalah, 1, ix, 1917, J. 
E. B. Hotson (Bombay Society). — The species belongs to Indian fauna and this 
is the most north-western record of its occurrence. 
Tetligoniidce. 
56. Eurycorypha sty’lata, St. — El-Kubar, N. W. Ai-abia. G. W. Bury, 
Sod (British Museum). — The genus is essentially African in its distribution 
and the species is African, as well. 
.57. Euconocephaltjs incertus. Walk. 
1869. CoNocEPHALTJs INCE KTUs, Walk.— Cat. Derm. Sait. B.M., ii, p. 320. 
1891. CoNOCEPHALTJS BREVicEPS, Redt.— Vcrh. Zool. -Bot. Gcs. Wien, p. 417. 
Tj this species must be partly referred records on the occurrence in the deserts 
of S. W. Asia of Horn, nitidulus, Scop. The above synonymy is estabhshed by me 
after comparison of Redtenbacher’s description with Walker's types of incertus. I 
have seen the specimens from the following localities: — Arabia: Fao, 27, x.. 91, 
15; Aden. 16, iii, 95, 19; ^Mesopotamia : Amara, P. A. Bii.xton. 19 (named by 
L. Chopard as nitidulus, Scop) ; Baluchistan ; Omarah, W. D. Cummings, 1 9 
(all in Britisli Museum). 
58. XiPHiDiUYi FUSCUM TCRANicuM. Sem. — Amara, Mesopotamia, \iii-ix, 16- 
30, V. 17, F. P. Connor (Bombay Society). 
59. Decticus albifrons, Cyi'. — Mesopotamia : Amara, vii., 16, F. P. Connor ; 
Sinn-Abtar, ani, 16, G. C. Shorti’idge. 
60. Trigoxocorypha angustata, sp. n. 
9 : Fastigium of vertex triangular, with middle sulcus broad and deep, 
open anteriorly. Pronotal disc rugulose, very feebly convex anteriorly and as 
feebly concave posteriorly ; fore margin rotundately concave ; hind margin 
circular with a very small emargination in its middle ; lateral carinse straight, 
feebly convergent anteriorly, more distinctly serrulate in prozona, than in 
metazona ; transverse sulcus feeble, curved backwards in the middle, placed at 
the end of the basal third ; lateral lobes forming a right angle with disc, distinctly 
higher than long ; their fore margin very feebly concave, lower and hind margin 
widely rounded. Elytra reaching well beyond hind knees ; marginal field 
strongly widened, but near its apical third rather suddenly narrowed, fore 
margin being distinctly concave and the apex of elytron lanceolato-attenuate ; 
radial veins almost straight ; first radial branch bifurcate, second one not divided; 
hind margin in apical half distinctly concave. Wings longer than elytra, with 
apex acute. Hind femora with tvn rows of numerous spinules beneath. Sub- 
genital plate short, triangular. Ovipositor short, strongly recurved. 
General coloration brownish (probably decolarated through preserving in 
some liquid) ; pronotal carinje slightly darker ; all other parts unicolorous. 
Length of bodj^ . . . . . . . . 26 mm. 
., pronotum . . . . . . . . 6, 5 
,, elytra . . . . . . . . 37, 5 
Width of ,, in the middle . . . . 10 
„ ,, in the apical fourth . . 6 
Length of wings . . . . . . 4<1 
,, hind femur . . . . . . 24 
,, ovipositor . . . . . . . . 6 
The only specimen of this species is from Fao, Persian Gulf (British Museum). 
Tliis is the fourth known species of the genus, the two previously known 
(unicolor, Stall, and abnormis, Br. W.) being Indo-Malayan in their distribution, 
and one has been described recently from Madagascar (maxima, Carl, Rev. Suisse 
Zook, vol. 22, Xo. 6, 1914, p. 167, pi. 5, fig. 5). Form of ehdra in the new species 
is quite peculiar and the shape of fastigium of vertex, which is completely 
divdded in two lateral parts by middle sulcus, presents another good specific 
character. 
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