212 HEMIPTERA-HOMOPTERA. 
9. Amblydisca aulwata, sp.n. (Tab. XIII. figg. 8, 8a.) 
Precedenti affinis, sed depressione metopidii toté fusca, pronoto maculis decem vel duodecim, lateribus magis 
parallelis ante apicem substrangulatis, et maculis tegminum aliter dispositis facile distinguenda. 
In form resembling the preceding species (A. tapes), but slightly larger, with the sides of the pronotum more 
parallel, and the usual anterior depression continued deeply to the sides in front, giving a slightly 
strangulate appearance; pronotum with more testaceous spots; scutellum broadly testaceous behind ; 
tegmina castaneous, with a large number of irregular light testaceous markings, of which the most 
conspicuous are perhaps an irregular row of spots on the edge; underside and legs light testaceous, the 
tarsi more or less infuscate. 
Long. 14-15 millim.; lat. ad hum. 4 millim. 
Hab. Nicaracua, Chontales (Janson); Panama, Bugaba (Champion), Chiriqui (Mus. 
Holm.). 
This and the preceding species appear to represent a common type of coloration 
among the insects belonging to the present division of the Tettigoniide; A. auleata 
is difficult to describe, but it may be easily recognized from the figures. ‘lhere are 
several allied forms from Brazil in the British Museum. . 
A specimen from Chontales is figured. 
10. Amblydisca multiguttata. 
Aulacizes multiguttata, Stal, Stett. ent. Zeit. xxv. p. 80 (1864) *. 
Hab. Mexico! (Mus. Holm.; Mus. Vind. Ces.). 
In the Vienna Museum there is an Améblydisca labelled ‘‘ multimaculata, det. Stal,” 
which must apparently be referred to this species. It is not represented in our 
collection, and I have not seen Stal’s type. 
11. Amblydisca coriacea. 
Aulacizes coriacea, Stal, Stett. ent. Zeit. xxv. p. 80 (1864) *. 
Hab. Mexico! (Mus. Holm.; Mus. Vind. Ces.); Guatemata, San Juan in Vera Paz 
(Champion). 
The single specimen in our collection is unicolorous, without spots, whereas the 
typical example has the tegmina irrorated with small white spots and furnished with a 
few larger ones. A. coriacea may easily be known by the head being considerably 
produced in an equilateral triangle, and by the raised reticulation of the elytra. 
12. Amblydisca gigas, sp.n. (Tab. XIII. figg. 9, 9a.) 
Major, fusco-castanea, antice rufo-castanea, sat nitida ; vertice valde producto triangulari, levi; metopidio plano; 
pronoto sat longo, fortiter rugoso-punctato, lateribus antice leviter sensim angustatis ; scutello ad medium 
depresso ; tegminibus ad basim punctatis, deinde subrugosis, ad apicem lavibus; abdomine fusco; pedibus 
testaceis vel rufo-testaceis, tarsis genibusque nigris. 
A very large and conspicuous, castaneous species, with the vertex much produced in a large, almost, isosceles 
triangle, and smooth and shining ; pronotum with the sides slightly but plainly narrowed in front, strongly 
and rugosely punctured; scutellum large, impressed and apparently divided in the middle; tegmina 
