362 Dr. J. L. Hancock's Third Paper cm the 



canus, Hanc, and b accident as, sp. nov., described below. 

 The species fossulatus, Bol., and lobulatus, St;il, 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- 

 tettioc, as noted in the Transactions of the Entomological 

 Society of London, p. 416, 1908. 



P. foicculentus, sp. nov. (Plate XLIX, figs. 6 and 0a.) 



CoIout 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 produced beyond them ; in front view 

 widely sulcate, little divergent downward toward the median ocellus ; 

 eyes colloidal in profile, the face below on each side tumid, antennae 

 inserted barely between the lower angles of the eyes. Pronotum 

 above rugose sprinkled with large tubercles, anteriorly convex ; 

 dorsum very obtuse tectifonn, barely impressed behind the 

 shoulders ; 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 aud 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 towaids the apices, 

 external canthi bearing many strong spines, and about seven spines 

 arm the inner canthi ; tibiae black with small light an nidation behind 

 the knees ; the first hind tarsal articles incrassate, longer than the 



