362 Dr, J. L. cock’s Third Paper on the 
canus, Hanc., and hticculentus, sp. nov., described below. 
The species foss^datiis, Boh, and lohdatus, Still, inhabit¬ 
ing South America, and formerly classed by Bolivar 
in this genus, are quite different from the African forms. 
As a result of a revised study of these insects the two 
latter species were recently transferred to my genus Rytina- 
tettix, as noted in the Transactions of the Entomological 
Society of London, p. 416, 1908. 
P. hucculentibs, sp. nov. (Plate XLIX., figs. 6 and im.) 
Colour shining, brownish fuscous, obscurely light variegated, 
sparingly sprinkled with various large tubercles. Body incrassate, 
head not at all exserted, occiput covered ; vertex transverse, rugose, 
twice the width of one of the eyes, frontal carinulae wanting ; in 
profile the distinct median crassate carina of vertex fused with the 
facial costa above, forming a rounded contour elevated above the 
eyes and strongly arcuately jjroduced beyond them ; in front view 
widely sulcate, little divergent downward toward the median ocellus ; 
eyes conoidal in profile, the face below on each side tumid, antennae 
inserted barely between the low^er angles of the eyes. Pronotum 
above rugose sprinkled with large tubercles, anteriorly convex ; 
dorsum very obtuse tectiform, barely impressed behind the 
shoirlders ; anterior prozonal carinae low, little convergent back¬ 
ward ; humeral angles obtuse and indistinctly lineate carinate but 
the lateral carinae behind on the process more distinct, entire ; median 
carina acute, subpercurrent, arcuate anteriorly, depressed at the middle 
and subconvex backward toward the apex, posterior process abbre¬ 
viated, subacute, not reaching to the knees of the hind femora ; 
lateral lobes rugose, inferior margin nearly straight, little sinuate, 
slightly reflexed outwards, posterior angles obliquely excised ; pos¬ 
terior superior sinus very small, nearly obsolete. Elytra small, 
narrow, subacuminate towards the apices; wings not visible or 
wanting. Anterior femora elongate, above entire, below indis¬ 
tinctly unilobulate ; middle femora bicarinate, compressed, mar¬ 
ginal carinae above and below subtrilobulate; posterior femora 
elongate, the outer area incrassate, marginal carinae above and below 
curvate, adorned with fuscous and minute flavous markings, minutely 
serrulate-granulate ; antegenicular denticle acute, genicular denticle 
wanting ; posterior tibiae incrassate, ampliate towards the apices, 
external canthi bearing many strong spines, and about seven spines 
arm the inner canthi ; tibiae black with small light annulation behind 
the knees ; the first hind tarsal articles incrassate, longer than the 
