12 PECTINICOENIA. 



down, and describing a short curve end in a small tubercle long before the clypeal 

 suture ; at the same time they are joined to the base of the central tubercle by a 

 longitudinal wheal, which shows traces of being composed of two obscure parallel 

 keels, and is continued a short distance within and beyond the angle of the frontal 

 carinse. 



Mr. Champion collected a good series of specimens at Cubilguitz, in the low forest- 

 region of northern Vera Paz. 



3. Popilius expositus. 



Oileus expositus, Kaup, Harold's Col. Hefte, v. p. 4 \ 

 Popilius expositus, Kaup, Monogr. der Passal. p. 77 2 . 



Hob. Mexico ? 12 . 



4. Popilius granulifrons. (Tab. I. %g. 13, 13a.) 



Sat anguste elongato-oblongus, supra planatus ; tuberculis basalibus latissimis antice verticalibus ; tuberculo 

 verticis cariniformi, apice valde declivi, carinis frontalibus apud declivitatis basin orientibus, imprimis 

 usque ad tuberculum parum divaricatis deinde arcuatim usque ad tuberculum validum mandibularem 

 continuatis ; intra angulum acutum carinarum fovea rotundata polita, deinde fronte granuloso-opaca ; 

 clypeo piano, vix nitido, medio plus minusve indentato ; thorace lateribus impunctatis, angulis antieis 

 rotundatis ; elytris dorso planatis, punctulato-suloatis, interstitiis paullo eonvexis, 5°-7 m angustioribus ; 

 metasterno convexo, polito, basi utrinque pauciter punctulato, apice utrinque punctis nonnullis majoribus; 

 tibiis intermediis unidentatis, carina superiori gradatim elevata et dense ciliata. 



Long. 27 millim. ; thorax 6, elytra 16 millim. long. 



Rob. Guatemala, Totonicapam (Champion). Five examples. 



Agrees in most points of the description with P. expositus, but larger (P. expositus is 

 10'"= 22 millim.) and differing in the granulated and opaque lower portion of the 

 forehead. The usual impressed line separating the clypeus from the front is imper- 

 ceptible, owing either to the granulate sculpture or to atrophy. Mr. Champion met 

 with this species in the pine-forest region, at an elevation of about 10,000 feet. 



5. Popilius debilis. (Tab. I. figg. 14, Ua.) 



Minor et angustior, sat depressus ; tuberculo verticis sicut in P. granulifronte, antice valde declivi carinisque 

 frontalibus apud declivitatis apicem orientibus et flexuose usque ad dentes mandibulares continuatis; 

 angulo intra basin carinarum polito, fronte infra granuloso-opaca ; thorace relative parvo, angulis antieis 

 omnino rotundatis sulculoque anteriore valde dilatato et grosse punctato, lateribus late grosse punctatis ; 

 elytris profunde punctato-striatis ; metasterno et tibiis sicut in P. gramdif route. 



Long. 21 millim. ; thorax 4§, elytra 14 millim. long. 



Hab. Guatemala, Totonicapam, Capetillo (Champion). 



Found in company with the preceding species, and also at a much lower elevation 

 (4000-5000 feet) on the slope of the Volcan de Fuego at Capetillo. 



