202 CASEY 



maxillary palpi slender, the last joint slender, fusiform and 

 obtusely pointed; eyes similarly coarsely faceted, divided by the 

 sides of the head; body broadly oblong-oval, feebly sculptured, 

 the epipleurae very wide ; scutellum wholly invisible ; prothorax 

 as broad as the elytra but attached by a broad exposed peduncle. 



* Platamodini 



32 — Body small, oblong or suboval, the head widest at base, the 

 coarsely faceted eyes divided by the acute sides, the front feebly 

 lobed at each side; mentum moderate, exposing the maxillae, the 

 antennae moderate in length, free, slender, the outer four joints 

 broader; elytra oval, not costate, the scutellum minute, trian- 

 gular ; pi'othorax attached by a broad peduncle ; legs rather short. 



Batuliini 



It is unusual to find such aberrant characters as the median 

 and terminal processes of the anterior tibiae and the externally 

 grooved mandibles, appearing in almost identically the same 

 form in two such completely dissimilar types as Cnemodus and 

 Erodius^ these facts showing that, notwithstanding the wonder- 

 fully varied form of the body and its various parts and organs, 

 all of these genera of the Tentyriinse with large mentum have 

 a very pronounced bond of affinity. The tribes foreign to our 

 fauna, introduced for comparison and indicated by the asterisk, 

 are substantially those already recognized, except perhaps the 

 Capnisini and Platamodini, the genera Cafntsa and Plataviodcs 

 being erroneously considered members of the tribe Tentyriini by 

 Heyden, Reitter and Weise. The Stenosini are represented in 

 my cabinet b}'' Stenosis, Eutagen/'a , Dichilhis and Oogasler and 

 our ArcBoschizus cannot be associated with them, disagreeing 

 in many important characters as shown in the table ; it is more 

 closely related to Adelosionia, but differs greatly in the form 

 and extent of the mentum. The Batuliini are placed last in the 

 series as forming a more natural transition to the Asidinas of 

 LeConte and Horn, b}^ way of Anepsius } 



^ There are of course a great many other tribes of the Tentvriinie which can- 

 not be considered at present, sucii as tlie Salaxini, having for its type the re- 

 markable South American genus Salax, resembHng Ofatrnm but related closely 

 to the Trimjtini and Epiphysini, related to our Edrotini. The genus Hylithus 

 will apparently constitute a tribe very close to the Trimytini, and Hy^crops 

 another but slightly differentiated from the Gnathosiini. In my own opinion 

 the genus Ilimatistnus should constitute a tribe very near but difterent from the 

 new world Epitragini, by reason of its different facies and more hexagonal 

 mentum. The male in Ilimatistnus is distinguished from the female by a very 



