I92I.] L. Chopard : Caveniicolous Orthoptera. 515 



regularly and slightly convex, thickened, anterior angle complete- 

 ly obliterated ; colour dark rufous brown, marbled on the disk with 

 large brown spots along the anterior and posterior borders. Meso- 

 and metanotum coloured like the pronotum ; posterior margin 

 of mesonotum rather strongly, of metanotum feebly convex; 

 lateral lobes moderately high, their inferior border thickened, 

 sub-angulate before the middle. 



Abdomen dark rufous, the tergites posteriorly lined with 

 brown ; loth tergite presenting a median impression, bordered 

 with two little diverging keels and two large lateral facets to which 

 the supraanal valve is articulated ; this is large, lengthened, sub- 

 acute at the apex, with blackish margins ; it is set very exactly on 

 the inferior valves which are broad, triangular. Inferior face of 

 abdomen yellowish ; subgenital plate forming a little apical pro- 

 cess, weakly bilobed, furrowed ; styli rather short, cylindrical. 



Cerci moderately long, rather thick at base, yellow, darkened 

 near the apex. 



Legs rather short, rufous yellow, the apex of femora and the 

 base of front and intermediate tibiae strongly darkened. Front 

 coxae exteriorly compressed and bearing a weak spine ; femora a 

 little compressed, armed with a rather long, movable internal spine 

 and a very short external one ; tibiae thick, hairy, armed with 

 two subequal apical spurs and 3 inferior spines, i of which internal 

 in the midst and 2 external, longer, inserted a little above the 

 internal and between that one and the apex. Tarsi short with 

 metatarsus very little dilated at the apex, a little shorter than the 

 other articles togetner, carinate beneath in its distal half, the 

 basal one bearing small spinules, 2nd and 3rd joints very short, 

 carinate beneath, the carina, as well as that of the metatarsus, 

 blackish. Intermediate legs similar to anterior ones ; coxae iner- 

 mous, femora armed with 2 long, subequal, apical spines; tibiae 

 rather thick at base, armed with 4 apical spines, the 2 superior 

 of which are shorter than the inferior ones; superior margins 

 armed each with 2 spines, the internal a little above the external 

 ones; inferior margins armed with 2 external and i internal 

 spine, disposed as those of the anterior tibiae. 



Posterior femora short and stout, rufous brown at base, 

 blackish at apex, external face presenting obUque blackish bands ; 

 tibiae blackish except the apex which is rufous brown ; their 

 superior margins armed with about 20 spines (20 ext., 21 int.), 

 rather strong and close, the apical one a little remote from the 

 preceding ; 6 apical spurs, the superior internal one equahng the 

 metatarsus; taisi short, the metatarsus equaling the other articles 

 together, compressed, feebly dilated at the apex, its superior mar- 

 gin little convex, armed with a broad apical yellow tooth and 4 

 very little denticulations, inferior margin as that of the other 

 metatarsi; 2nd and 3rd article extremely short, 4th rather long 

 and slender. 



Length of body 16 mm. ; length of pronot. 5-5 mm. ; width of 

 pronot. 5 mm. ; cerci 5 mm. ; ant. fem. 6 mm. ; ant. tib. 6 mm. ; 



