Vol. XXVliiJ ENTOMOLOGICAL NEWS. 119 



compressed and lamellate expanded on proximal one-half, mar- 

 gins of expansion spined. Mesosternal lobes acute-angulate. 

 Metasternal lobes broadly rounded acute-angulate. 



This genus includes, as far as we know, only the genotypic 

 species. Its form is very striking and it is clearly denned from 

 Posidippus, as well as from the aberrant genera Front inns and 

 Steirodonopis. 



Cnemidophyllum lineatum (Brunner). Plate X, figs. 5, 8 and 9. 

 1891. Posidippus lincatits Brunner, Verhandl. K.-k. Zool.-botan. Ge- 

 sell. Wien, XLI, pp. 183, 184. [Upper Amazons.] 



Contamano, Rio Ucayali, Peru. X to XII, 1912. One male. 

 [A. N. S. P.] 



This remarkable species has been sufficiently described by 

 Brunner, than whose type our individual is slightly smaller. 

 As the present specimen has been dried from alcohol it has lost 

 all its original coloration, excepting the dark markings, which 

 are distinctly indicated and disposed as described by Brunner. 

 The minute striolations of the tegmina are also very faintly 

 indicated. 



The species is known only from the two records. 



FRONTINUS Stal. 

 1874. Prontinus Stal, Recens. Orthopt., II, pp. 20, 46. 



Genotype : Frontinus degeerii Stal. 



We feel that no useful purpose is served in longer retaining 

 within the genus Posidippus, the well denned species which 

 constitute this and the following groups. In detailed charac- 

 ters they are as clearly denned as any of the allied genera, 

 while their general appearance is so distinct they are easily 

 recognized. The policy of Brunner was to consider them 

 members of Posidippus. 



From the related Steirodonopis, Stal's genus can be readily 

 separated by the fastigii being sub-equal in width and length, 

 while (in degeerii at least) the stridulating field of the male 

 tegmina is broad and extensive, with the stridulating vein 

 heavy, arcuate and sub-transverse. This genus includes raro- 

 spinulosns Brunner in addition to the genotypic species. 



Frontinus degeerii Stal. Plate X, fig. 11. 



1874. J'ronliinis degeerii Stal, Recens. Orthopt., II, p. 46. [Surinam.] 



