. The Annals and magazine of natural history; zoology, botany, and geology. levated, very strongly centrally longi-tudinally carinate, the lateral angles short and very robust,upwardly directed, anteriorly coarsely serrate, their apicescontinued in a slender sjjine a little directed backwardly, atfrontal base before eyes distinctly, obtusely, angularly pro-duced, posterior process very robust, strongly undulate,well separated from scutellum, near base sliortly stronglyglobose, then nodulate and strongly directed downward,afterward raised, strongly longitudinally globose and witha long, slender
. The Annals and magazine of natural history; zoology, botany, and geology. levated, very strongly centrally longi-tudinally carinate, the lateral angles short and very robust,upwardly directed, anteriorly coarsely serrate, their apicescontinued in a slender sjjine a little directed backwardly, atfrontal base before eyes distinctly, obtusely, angularly pro-duced, posterior process very robust, strongly undulate,well separated from scutellum, near base sliortly stronglyglobose, then nodulate and strongly directed downward,afterward raised, strongly longitudinally globose and witha long, slender, slightlv curved, apical spine which distinctly 22* 328 Mr. W. L. Distants Rhjncliotal Xutes. passes the posterior angle of the iniiev tegminal margin ;scutellum a little longer than broad, the apex slender andrecurved ; tegaiina about three times longer than broad,apical cells four, preceded by three subapical cells ; legselongate. Amitrochates yrahami, sp. n. Head, pronotum, and scutellum shining black, a smallgreyish-white spot at each basal angle oP the scutellum, a. Amitrocliafes (/ralnDni, JJif-t. similar spot on each lateral margin of the pronotum, andanother spot near insertion of tegmiua ; legs black, til)iaiand. tarsi ochraceous, bases of the tibiae black ; abdomenmore or less greyish white ; tegmina pale hyaline, the basalarea black, venation brownish ochraceous, a transverselinear spot at posterior angle of inner tegminal margin, anda marginal costal spot beyond middle pale brownish ; pro-notum thickly, somewhat coarsely punctate, {)Osterior pro-notal i)rocess with the upi)er and lower margins irregularlycoarsely serrate ; other structural characters as in genericdiagnosis. Long., inch tegni., 5 mm. Hab. Ashanti; Oh\\?i^\ {Dr. W. M. Graham). Gold Coast;Aburi (//■. H. Patterson). Genus Tricentrus. Tricentrus, Stfil, Hem. Afr. iv. p. 89 (1866); (Efv. Furl). 1869, p. 283; /. c. 1870, p. 728; L)ist. Fuim. Brit. India, iv. p. o3 (1907).Otaris, IBuclit. Monofj
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