244 ORTHOPTERA. 



3. Nautia conspersipes, sp. n. 



As indicated by the synoptic table, this insect is most nearly related to N. jpetasata, Rehn, which comes from 

 an adjacent locality. It also comes close to N. jlavosignata, Stal, from further south. Its general 

 structure is robust, somewhat fusiform ; the tegmina are abbreviated, tapering, and one-half the length 

 of the abdomen, their apex rounded. 



Front, cheeks, occiput, pronotum, and pleura coarsely and profoundly punctulate. Vertex very narrow, not 

 more than one-third as wide as the diameter of the first antennal joint ; fastigium horizontal, but 

 considerably depressed below the plane of the occiput, sulcate. Frontal costa prominent between the 

 antennae, plain above, sulcate below, scarcely reaching the ocellus. Antennae heavy, subensiform, 

 the basal joints strongly depressed, as long as the head, pronotum, and tegmina together. Pronotum 

 rather strongly divergent posteriorly ; the hind extremity subangulate, its middle slightly notched ; 

 in front roundly advanced upon the occiput and with the median portion roundly emarginate. Tegmina 

 tapering, with their dorsal edges overlapping. Hind femora robust, nearly one-third as wide as long, 

 strongly serrate and tuberculate, the genicular area about one-fifth of the entire length; the tibia? 

 considerably shorter than the femora, the tarsi more than half as long as the tibiae, the first and second 

 joints about equal in length. Prosternal spine blunt, quadrate at base, somewhat transverse. Yalves of 

 the ovipositor straight, the upper pair much heavier and longer than the lower pair, their superior edge 

 flattened and with the external margin sharp and faintly crenulate. 



General colour brownish, with an olivaceous tinge to the head, abdomen, and legs, the latter somewhat paler 

 than the rest of the insect. Pronotum quadrifasciate with flavous, the disc of the tegmina similarly 

 coloured to their apices. Hind femora with all the serrations and tubercles black-tipped, the lunules of 

 the genicular portion also strongly blackened. Hind tibiae 8-spined both externally and internally, the 

 spines black-tipped. 



Length of body, $ , 26-5 ; of pronotum 6-2, of tegmina 9, of hind femora 15, of antennae 17"5 millim. 



Hab. Nicakagua, Chontales {coll. 8. E. Scudder). 



OPHTHALMOLAMPIS, Saussure. 



Ophthalmolampis, Saussure, Eev. et Mag. Zool. 1859, p. 394; Stal, Bihang till K. Svensk. Vet.- 



Akad. Handl. v. no. 4, p. 42 (1887) ; Syst. Acrid, i. p. 42 (1837). 

 Taeniophora, Stal, Recens. Orthopt. i. pp. 34, 54 (1873) (in part.). 



Although the present genus has been recorded as belonging to Tropical America, 

 none of the species have been referred to, or collected in, regions embraced in the 

 present treatise. Since two or three species have been taken in countries of northern 

 South America, one or more of the forms are liable to occur in Central America in the 

 vicinity of Panama. 



T^NIOPHORA, Stal. 

 Taniophora, Stal, Recens. Orthopt. i. pp. 34, 53 (1873); Syst. Acrid, p. 42 (1878). 



The genus Tamiophora includes several species of highly-coloured locusts that are 

 below the medium in size. They are distributed over northern South America and 

 the lower portions of Central America, with Panama at about the centre of such 

 distribution. The known forms, together with two additional species, are tabulated 

 in the subjoined key. 



