264 FOSSIL COLEOPTERA 



characters shown indicates the propriety of placing it in the Cer- 

 ambycidae, where it seems to go into the Prioninae by the form, 

 antennal structure and connate labrum. In general, it is prob- 

 ably allied to the Solenopterini, fairly well represented today in 

 tropical America. The color seems to have been a uniform 

 brown, like that of most modern Prioninae. 



PALAEOSMODIGUM gen. nov. 



Form similar to that of most of the modern members of the 

 Callidioides. Second antemial joint large. Eyes well developed, 

 granulations not very coarse. Elytra not spinose at tip. Thighs 

 clavate, front coxal cavities confluent. 



Type. — P. hamiltoni sp. nov. 



Palaeosmodicum hamiltoni sp. nov. (Plate VIII, fig. 20.) 



Form subparallel, moderately elongate. Head short and broad, eyes 

 suborbicular in vertical view. Antennae incomplete at apices, first joint 

 moderately large and clavate, second about half the length of the third 

 which is nearly equalled by the fourth. The following joints are not dis- 

 tinctly set off, so it is impossible to describe them. Prothorax broader 

 than long, the sides nearly straight, the only visible sculpture a minute 

 inconspicuous punctuation. Elytra unarmed and apparently bluntly 

 pointed at apices, without maculation but finely punctulate, especially at 

 their bases. Thighs clavate, the hind ones particularly so. Length, from 

 front of head to abdominal apex, 18.50 mm. 



The type is in my collection. It was collected on the Wilson 

 Ranch, Florissant, Colorado. 



This insect seems worthy of generic separation since the assem- 

 blage of structural characters, taken into consideration with the 

 facies, does not permit its entry into any of the Callidioid genera 

 that I know. It looks a good deal like a large Smodicmn, but the 

 confluent front coxal cavities forbid assignment to that genus. 

 The specific name is given in remembrance of an old friend, the 

 late Dr. John Hamilton of Allegheny, Pa. 

 Hylotrupes puncticollis sp. nov. (Plate VIII, fig. 21.) 



Form moderately stout. Head of relatively larger size than in any of the 

 living North American species, finely rugosely punctulate and so.mewhat 

 hairy. Antennae not quite complete on either side, but what is left indi- 

 cates that they reach nearly to the elytral apex. The first joint is only 

 fairly enlarged, the second approximately one-third the length of the 

 third, fourth and following shorter, not broad nor spinose as far as can be 

 Been. Prothorax imperfect on the sides but one-half of the specimen 



