HELICOPTERA.—PSEUDHELICOPTERA. | 107 
Var. albido-variegata, n. (Tab. XI. fig. 15.) 
Tegminibus conspicue albido variegatis. 
Front of head, posterior margin and apex of scutellum, and the disc of the tegmina more or less white. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith) ; Guatemata, Panajachel (Champion) ; 
Panama, Volcan de Chiriqui (Champion). 
Our figures of this variable species are both taken from Chiriqui specimens. 
2. Helicoptera chiriquensis, sp. n. (Tab. XI. figg. 16, 16a.) 
Quoad formam coloremque pracedenti valde affinis, sed major, et capite ante oculos distincte magis producto, 
oculisque supra visis longioribus, facile distinguendus. 
Very like the preceding in general appearance and colour, but easily distinguished by the longer and more 
excavate vertex; the whole of the frons is whitish and the clypeus dark, the colours being sharply 
defined one from another; the eyes appear to be more elongate, if viewed from above, but if viewed from 
the sides are almost round; the colour of the tegmina varies as in the preceding species. 
Long. cum tegm. 743-8 millim.; lat. ad hum. 24 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
8. Helicoptera longiceps, sp. n. (Tab. XI. figg. 17, 17 a, 3.) 
Sat brevis, robusta, brunnea, corpore supra, precipue tegminibus, granulis minutis testaceis dense adsperso ; 
vertice latitudine multo longiori, ante oculos triangulariter producto, apice rotundato; fronte longa, 
testacea, antice fusca, clypeo plus minusve brunneo-testaceo; pronoto tricarinato, et lineis quibusdam 
elevatis utrinque instructo; scutello distincte tricarinato; tegminibus amplis, venis magnis, elevatis, 
utringue plus minusve obscure rubro-notatis; alis fuscis; abdomine testaceo, fusco-notato; pedibus 
testaceis. 
Rather short and robust, dark brown, with the upper surface of the body, especially the tegmina, thickly 
sprinkled with minute testaceous granules ; vertex long, produced considerably before the eyes, rostrate 
if viewed from the sides, rounded in front; forehead and clypeus long, angled at about the middle, the 
former fuscous in front, testaceous behind, the clypeus brownish-testaceous ; pronotum with three carine 
and several raised lines at the sides; scutellum distinctly tricarinate; tegmina ample, with raised veins, 
more or less distinctly marked with red at the sides; abdomen testaceous, more or less marked with 
pitchy ; wings nearly black ; legs testaceous, the posterior tibize with a minute tooth at the base. 
Male with the last ventral segment produced in the centre in a small plate, which is emarginate at the apex, 
and rounded on each side of the emargination. 
Long. cum tegm. 6 millim.; lat. ad hum. 2-24 millim. 
Hab. Panama, Bugaba (Champion). 
Several specimens. 
PSEUDHELICOPTERA, gen. nov. 
Genus Helicoptere affine, sed vertice longo, angusto, reflexo, ad latera compresso, supra excavato, oculis 
elongatis, haud prominentibus, et areis apicalibus compluribus magisque regularibus, facile distinguendus. 
Closely allied to Helicoptera, but with the vertex very long, narrow, and excavate, bifid just: before the apex, 
compressed at the sides, and reflexed ; forehead and clypeus long and narrow; eyes long, flattened on 
their underside, not prominent ; pronotum very short at the sides, but in the centre produced into a 
point between the margins of the vertex; scutellum plainly tricarinate ; tegmina overlapping, with the 
apical veins more numerous, regular, and parallel than in Helicoptera, the rest of the venation being much 
the same as in that genus ; legs slender, the posterior tibia with a minute tooth towards the base, 
