340 LAMELLICOENIA. 



P. variolosus, Burra., from which it differs only in the punctures being smaller, and on 

 the thorax less close and evenly distributed. 



5. Phileurus cylindroides. (Tab. XX. flgg. 15, 15 a, e .) 



Angustior, elongatus, subcylindricus, nigro-nitidus, prosterno subtus vulpino-pubescente ; capite basi tf impunc- 

 tato, polito, 5 rugoso-punctato, clypeo acuminato-reflexo, cantho oculari lobato et anterius utrinque angu- 

 lato, fronte in tf erecte bicornuta, in 5 tubercnlis duobus latis conicis ; thorace plus minusve grosse 

 annulato-punctato, snleo dorsali lato, grosse confluenter punctato, basin versus plerumque laevi, margine 

 antico haud tuberculato ; elytris punctato-sulcatis, punctis grossis et umbilicatis, interdum minoribus et 

 sulcis minus profundis bine interstitiis latioribus ; sternis et coxis posticis grossissime discrete punctatis. 

 Pygidium grosse punctatum, $ valde convexum, 5 fere planum ; segmentum apicale ventrale impunc- 

 tatum. 



Long. 18-21 millim. $ $ . 



Hab. Beitish Honduras, R. Sarstoon {Blancaneaux) ; Guatemala, Capetillo (Cham- 

 pion) ; Costa Rica, Volcan de Trazu 6000 to 7000 feet, Rio Sucio (Rogers) ; Panama, 

 Bugaba, Volcan de Chiriqui 4000 to 6000 feet (Champion). 



A male from Rio Sucio is shown on our Plate. 



6. Phileurus dejeani. (Tab. XX. figg. 19, 19 a, 6 .) 



P. depresso afflnis, sed convexior, elytrorum interstitiis alternis valde elevatis etc. Elongato-oblongus, sat con- 

 vexus, nigro-nitidus, femoribus rufo-piceis ; capite d antice fere lsevi, $ grosse alveolato-punctato, clypeo 

 acuminato-reflexo carinis postice divergentibus validis, cantho oculari subquadrato prominente denteque 

 anteriore valido, fronte S cornibus duobus brevibus erectis, $ tubercuHs basi dilatatis subconicis; 

 thorace grosse et antice dense umbilicato-punctato sulcoque dorsali profundo, lato et grosse confluenter 

 punctato, margine antico haud tuberculato; elytris grossissime umbilicato-pimctato-striatis, interstitiis 

 3° et 5° elevatis et incrassatis, 2° et 4° apud basin solum elevatis postice depressis et angustatis ; meta- 

 sterno fere toto sat grosse punctato. Pygidium grossissime punctatum, $ et 5 paidlo convexum; seg- 

 mentum apicale ventrale basi tantum punctulatum ; tibiae 4 posticse extus spinis mediana et apicali latis. 



Long. 17-23 millim. $ 5 . 



Hab. Mexico, Cordova, Toxpam (Salle), Jalapa (H'oge) ; Guatemala, Cerro Zunil 

 (Champion). 



I have adopted the MS. name given to this species in the Salle collection. It is very 

 closely allied to P. cylindroides, but is distinguishable in all the numerous examples by 

 its costate elytra, as well as by its broader and more robust form. P. dejeani is not 

 much more convex than P. valgus or P. depressus. 



We figure a male example from Toxpam. 



7. Phileurus truncatus. 



Scarabceus truncatus, Palisot de Beauvois, Ins. Afr. et Amer. p. 41, t. 1 b. fig. 4. 

 Phileurus truncatus, Burm. Handb. der Ent. v. p. 157 1 ; Horn, Trans. Am. Ent. Soc. viii. pp. 147, 

 148 (1880) 2 . 

 Hab. North America \ from North Carolina southward 2 . — Mexico, Cordova (Salle). 



There is only one example of this species in the Salle collection, others also labelled 

 P. truncatus being the superficially very similar P. guadrituberculatus. 



