LE CONTE.— LONGICORN COLEOPTERA 



X. 



Mesosternum planum. 

 Palpi dilatati. 

 Mandibulae acutas. 

 Antennae inter oculos sitse. 

 Acetabula antica extus angulata. 

 Femora valde clavala. 



Pteroplatus, Callidium, Hylotrupes, Phymatodes, 

 Physocnemum, Saphanus, Tetropium, Mallosoma, 

 Deilus? Stromatium? Piezocera? Amphidesmus? 

 Listroptera ? 



XI. 



Mesosternum planum. 

 Mandibulas integrae subacutee. 

 Antennae ante oculos insertae. 

 Coxae antics modice transversae. 



Cricocephalus, Asemum. 



XII. 



Mesosternum planum. 

 Palpi, elongati, dilatati. 

 Mandibulae scalprarijE. 

 Antennae ante oculos sitte. 

 Acetabula antica rotundata, hientia. 



Distenia, Ozodes? 1 



XIII. 

 Mesosternum planum. 

 Caput rostratum. 

 Palpi maxillares mediocres. 

 Femora valde clavata. 

 Odontocera, Rhinotragus, Oregostoma. 



XIV. 



Mesosternum planum (an semper ?) 

 Caput baud rostratum. 

 Palpi maxillares brevissimi. 



Pachyteria, Colobus, Callichroma, lonthodes, 

 Aromia, Rosalia, Disaulax, Litopus. 



Group 3. 



In this group the body is elongate and somewhat cuneiform as in the Purpuricenus 

 group, from which they are distinguished only by the mesosternum being deilexed 

 anteriorly. The thorax is either armed or not, but is not wider than the elytra, 

 which are rounded at the apex. The antennae are setaceous and very long in the 

 males, and their last joint is divided or very 'nearly so; the palpi are but little dilated, 

 the maxillary being longer than the labial ; the femora are not clavate, and the joints 

 of the abdomen gradually diminish in length. The posterior tarsi are not elongated. 



SMILECERAS. 



Antenna pubescentes. %. Sub 12-articulat£e, articulis 4 — 7 gradatim longioribus, 5 — 11 extus acute 

 marginatis. 



Thorax lateribus dilatatus bituberculatus, tuberculo posteriore subacuto. 

 Scutellum subelongatum acutum. 

 Mandibulae obtusae. 



The joints of the antennas from the fifth to the end, have their anterior margin 

 compressed like a knife edge. The facies is very like Hammaticheriis, to which I 

 should have referred it, but for the structure of the mesosternum. The maxillary 

 palpi too are longer than the labial, and the joints of the antennae from the sixth are 

 not suddenly longer and thinner. 



