100 LAMELLICOENIA. 



vexo sublsevi, lateribus confluenter punctato quasi eorroso, clypeo mguloso, rufescente, minute bidentato ; 

 thorace dense regulariter punctato, basi marginata, angulis posticis rotundatis ; scutello rugoso-opaco, 

 margine leevi ; elytris subtiliter catenulato-punctato-striatis, interstitiis paullo convexis, latis, intus grosse 

 crenato-punctatis, extus seriatim punctulatis et leviter carinatis, medio lsevibus (lateralibus toto punetatis), 

 prope apicem angustis et punetatis ; abdomine, metasterno femoribusque sat dense punetatis, mesosterno 

 opaco griseo-pubescente, inter coxas earinato. 

 Long. 3-3| millim. 



Eab. Guatemala, near the city, Capetillo, Duerias, Zapote (Champion). A large 

 number of examples. 



Similar at first sight to A. gracilis, but a trifle broader and more convex, and the 

 thorax wanting the impressed dorsal line characteristic of that species. Allied to 

 A. sculptilis and A. steinheili, Harold, but smaller and different in the sculpture of the 

 elytra. 



Var. A. intermedins. Elytra et thorax sicut in A. polyglypto typo, sed capite sicut in A. scalptifronte creber- 

 rime subconfluenter punetulato, medio longitudinaliter substrigoso. 



Hab. Panama, Volcan de Chiriqui (Champion). Two examples. 



Var. A. jalap ends. Thorace dorso minus dense punctato (lateribus crebre confluento-punctatis) elytrorumque 

 interstitiis extus uniseriatiin conspicue punotatis, convexis, nee carinatis. 



Eab. Mexico, Jalapa (Edge). 



Var. A. hieronymi. Nitidior, semper piceo-rufus vel castaneus ; thorace disco subdisperse, lateribus crebrius 

 punetatis; elytris subtilius sculpturatis, interstitiis extus leviter convexis (conspicue uniseriatim punetatis); 

 ventro punctato, metasterno femoribusque subtiliter et sparsim punctulatis. 



Eab. Guatemala, San Geronimo (Champion). Numerous examples. 



17. Ataenius scalptifrons. (Tab. VI. fig. 25. ) 



Oblongus, mediocriter convexus, fuligineus, opacus, capite creberrime confluenter punetulato, medio longitudi- 

 naliter substrigoso, clypeo paullo laeviore granulato-rugoso ; thorace creberrime subconfluenter punetulato, 

 linea dorsali leviter impressa ; etytris subtiliter catenulato-punctato-striatis, interstitiis intus planis crenatis, 

 extus anguste carinulatis et seriato-punctulatis ; humeris spina magna armatis : corpore subtus femoribusque 

 sat crebre punetatis. 



Long. 3| millim. 



Eab. Mexico, Cordova (Salle); Guatemala, near the city (Champion). 



Evidently allied to A. steinheili, Harold, from Colombia, but differing in the peculiar 

 sculpture of the head, the close punctures of the vertex running into fine longitudinal 

 rugse on the forehead and leaving only the margin of the clypeus a little smoother, 

 with a few transverse granular wrinkles. The sculpture of the elytra would agree 

 pretty well with the description of A. steinheili if we take the " tief und ziemlich breit 

 gestreift " of Von Harold as meaning the superficial appearance only ; for the striae 

 proper are narrow, and it is only the elevation of the outer side of the interstices into 



