KOS.l !•'. II. liHAVKLV: I'fissnlidae of the World. 55 



postorior iiiti'inirWiatf areas of the motasterniim aip more extensively punoturefl than 

 ill I'. Idtijiinis. whii li tiic present species resembles in <jther respects. 



Passalus COnvexus, Schonherr. 



I'li.s.sdlii.s idinijiis. Scli(inlirir, ls|7. ]>. ■'•'■V'-. niil iii)|ii'ii(lix 1)|). 112-113. 



Ten specimens from Cumbase (Peru), Tfjuca, Upper Amazon, antl Amazonas. 

 Length 38-0-43-7 nam. 



This species, like the last, is closely allied t(t Pussahi.s Inlifrons, from which it differs 



only in its larger size, in not having the frontal ridges continued beyimd the inner tubercles, 



in havin" less prominent outer tubercles, and in having the anterior angles of the pronotum 



more or less rounded. 



Passaius quitensis (Kaup). 



Fiji. Vll. 7. \>. .j;i. 



Prnnihjiis qinteiisis. Kaup. ISTl. j)(). f)3-()l. 



Descrilicd Ik mi a cotype from Quito, lent by the British Museum. Length 32 mm. 



Tn addition to its rounded ]ironotum and fused and rounded elytra Passalus quitensis 

 differs from P. convexiis in having the inner tubercles directly behind and much nearer 

 to the outer tubercles, in having curved instead of straight frontal ridges, in having well 

 developed mesosternal scars, and in having the posterior intermediate areas of the metas- 

 ternum strongly and extensively punctured. 



Passalus aflfinis, Perc hemn. 

 Piissfiliis iiffiiiif!. Percheion. \Ki'). ])p. 7'J-7:5. pi. v. tij;. .J. 



Several specimens from Cuba, three from St. Domingo and one fr<im Haiti. i.,ength 

 37-5-42-0 mm. Relative breadth very variable. 



The frontal area reseml)les that of P. quitensis, but is more closely and extensively 

 punctured in front, while the inner and outer tubercles are contiguous, together forming 

 a pair of more or less oblique ridges on the anterior margin of the head, as in P. interruptus, 

 etc. The mesosternal scars are well developed : the posterior intermediate areas of 

 the meta.sternum are coarsely and extensively punctured. The lateral areas of the 

 metasternum, the epipleura and the shoulders of the elytra are pujutured and hairy. In 

 other respects this species resembles P. convexus. 



Passalus catharinae, n. sp. 

 Fi-. Vll. .s, p. .-,:•,. 



One specinuMi from Santa Catliarina and one from Cliaco. Length 31 33 mm. 



The head is very like that of P. affiiiis, but the frontal ridges and all the tubercles are 

 more stronglv elevated, the broad and rectangular or obtu.se apex of the central tubercle 

 slightly overhanging the fnmtal area, which is m'in> or le.ss .sparsely punctured. There 

 are a few .strong punctures above the pronotal scars. The posterior intermediate areas 

 of the metasternum bear a few coale.scent jumctures along the inner margin ; the lateral 

 areas are linear, hairless and unjiuncturcd. The elytra resemble tho^e of P. affinis except 

 that the dor.sal ridges are less and the lateral nuue <'oarsely punctured, the three grooves 



