274 OETHOPTERA. 



3. Coscineuta olivacea, sp. n. (Tab. ill. fig. 13, $ .) 



About the same size as C. coxalis and C. virens, but differing from them both in a number of respects. In 

 fact it might even be placed in a new genus, but for the present, at least, it will be permitted to remain 

 in Coscineuta. 



General colour above brownish-olive with a tinge of ferruginous on the tegmina, paler beneath. The wings 

 for most part brick-red, with the apex and outer half of anal border clouded with smoky-brown. Legs 

 pale olive-green, the hind femora with their knees and the immediate base of the hind tibiae infuscated, 

 the latter greenish, becoming brownish apically ; the metatarsi red. 



Vertex between the eyes gently depressed, shallowly sulcate, about as wide as the diameter of the basal 

 antennal joint ; the fastigium nearly as long as wide, provided -with a slightly raised and polished 

 transverse carina that separates the vertex from the frontal costa. The latter moderately prominent 

 above the ocellus and between the antennae, where it is provided with a few coarse punctures ; below the 

 ocellus contracted, much narrower and nearly obliterated. Lateral or facial carinas rather Btrongly 

 divergent. Front and genae coarsely, deeply punctate. Eyes brassy, fairly prominent, a trifle longer 

 than broad and a little longer than that portion of the cheeks immediately beneath them. Occiput 

 short and rather strongly punctulate in a < -shaped pattern. Pronotum profusely and sparsely punctured, 

 without definite median carina ; the anterior edge sinuate, roundly but shallowly emarginate at the 

 middle, hind edge obtusangulate ; the transverse sulci moderately impressed, and the hind lobe about 

 one-fifth shorter than the anterior one. Tegmina and wings as long as the abdomen ; the former of 

 moderate width, comparatively coarse-veined and with their apex rounded ; the latter broad, and with the 

 apex docked and more or less undulate as in Ghrysopsacris, Bruner, and Bactrophora, Westwood. Hind 

 femora robust, about as long as the abdomen, tibiae 6-spined externally and 8-spined internally ; hind 

 tarsi with the second joint about two-thirds the length of the first, and together with the tibiae rather 

 hirsute. Valves of the ovipositor with the apices slender and strongly hooked. Prosternal spine 

 pyramidal, acuminate. Antennae filiform, a trifle longer than the head and pronotum together, the two 

 apical joints a little paler than the preceding, which are brown or infuscated. 



Length of body, $ , 27 ; of pronotum 6, of tegmina 19, of hind femora 14 millim. 



Eab. Nicaeagua, Chontales (Janson). 



A single female specimen only has been received. 



ZOSPERAMERUS, gen. nov. 



A tropical genus composed of medium-sized, decidedly variegated locusts, with 

 prominent eyes, narrow vertex, strongly and profusely punctured pronotum, and lono-- 

 jointed hind tarsi. These insects are closely related to Bucephalacris, Gig.-Tos, on the 

 one side and to Chrysopsacris, Bruner, on the other. Only females are at hand and 

 but two species represented. One of these belongs to the fauna included in the present 

 work and the other comes from Para, Brazil. 



1. ZosperamerilS ZOnatipeS, sp. n. (Anniceris nicaraguce, Tab. III. fig. 18, $ .) 



Wood-brown, varied with paler and darker markings on head, pronotum, and femora, and characterized by the 

 very long-jointed, red and black hind tarsi. As the name implies, the legs, and especially the femora, are 

 alternately pale and dark banded. 



Head a little wider than the front edge of the pronotum, the occiput short and but little inflated ; eyes large 

 and subglobular, their diameter considerably exceeding the length of the anterior edge of the cheeks 

 below them ; vertex between the upper edges of the eyes narrow, somewhat less than the diameter of the 

 basal antennal joint, depressed and gently sulcate anteriorly, the fastigium subhorizontal, about as long 

 as wide, its anterior edge separated from the frontal costa by a raised carina ; the costa rather prominent 



