PSETJDACANTHTJS.— PLATYVEEEES. 9 



According to the type specimen, which I have examined, this species belongs to the 

 same section of the family as Proculejus, the base of the elytra being prominent in the 

 middle ; but the leaflets of the antennae are extremely short. The flanking tubercles 

 of the horn of the vertex' are visible, though short and little elevated. The frontal 

 carinae and their terminal tubercles are obsolete. 



3. Pseudacanthus (?) jalapensis. (Tab. I. figg. 10, 10«.) 



P. laticorni simihs ; minor, elytris relative brevioribus. Parum convexus, nitidus ; cornu verticis basi lato, apice 

 elongate libero, tuberculis basalibus sicnt in P. laticorni conspicuis, brevibus, panllo elevatis ; carinis 

 frontalibus late curvatis, obtusis, in tubercnlum ante clypei suturam terminantibus ; antennarum lamellis 

 mediocriter elongatis ; thoracis angulis anticis rotundatis, sulculo marginali undique angnsto pnnctulato, 

 fovea laterali et lateribus lsevibus ; elytris medio basi parum prominentibus fere rectis, valde punctato- 

 striatis, glabris, interstitiis subaaqnalibus ; tibiis intermediis carina superiori in medio gradatim elevata 

 ibique dense ciliata, bispinosis ; metasterno (juxta coxas intermedias grosse punctato excepto) la3vissimo. 



Long. 25 millim. ; thorax 6|, elytra 13| millim. long. 



Hab. Mexico, Jalapa {Edge). 



PLATYVERRES. 



Gen. Verves quoad verticis cornu simillimus ; antennarum lamellae quoque brevissimse. Differt elytris basi 

 haud sinuatis sed medio leviter rotundatis. Metasternum utrinque vitta depressa angusta apice haud 

 dilatata punctulato-pubescenti, Labrum late triangulariter emarginatum. Caput lseve ; clypeus planatus, 

 utrinque intra labri marginem dente valido apice truncato ; cornu verticis cum tuberculis lateralibus 

 simul elevato antice tridentato. Thorax magnus, angulis anticis late rotundatis, sulculo marginali laevi 

 nullomodo dilatato. 



Kaup placed the species for which this genus is rendered necessary in his genus 

 Verres, belonging to his subfamily " Passalina?," and therefore as far as possible apart 

 from Proculejus, with which undoubtedly lie its true affinities. In the very short 

 leaflets of the antennae it no doubt resembles the " Passalinae," but this is not more 

 than a specific character in many of the Old World genera of the family, and cannot 

 outweigh the form of the base of the elytra and the large size of the thorax. The 

 parallel-sided and narrow lateral groove of the metasternum is also not unimportant as 

 an indication of its true place. In Verres and all the allied large " Passalinse " this 

 groove is broadly dilated behind. In Proculejus and allies it is always narrow, and 

 sometimes reduced to an impressed line. 



l. Platyverres intermedins. (Tab. I. figg. 11, ll«, 12.) 



Verres intermedins, Kaup, Monogr. der Passal. p. 115 \ 

 Hab. Mexico x (Salle, ex coll. Sturm), Juquila (Salle), Misantla (Edge). 



The type specimen is in the British Museum and has been compared with- one of 

 M. Salle's examples by Mr. C. O. Waterhouse. 



A specimen (Tab. I. fig. 12) taken by Herr Hoge at Misantla has a thorax of extra- 

 biol. centr.-amee., Coleopt., Vol. II. Pt. 2, May 1886, CC 



