CALANDRIDAE. 507 



4. Body ln'iic.ith ^^Mabrous. Sphenophorus. 



Front and middle coxa', 1st and 2d ventral segments hairy. 



Trichischius. 



Seyplio})liorus, Metaraasius, and Cactopliagus occur in Arizona 

 and California, Rhodobajnus from Atlantic region to Arizona, 

 Trichischius in Colorado, and .Sphenophorus from the Atlautie 

 to the Pacific. 



Tribe III.— CALAJVDRIIVI. 



This tribe consists of small species, in which the mandibles are 

 pincer-shaped, and not everted ; the club of the antennce not coni- 

 })ressed, and the mcsothoracic cpimera transverse, acute at the 

 outer end, and intervening- between the humeral part of the elytra 

 and the base of the prothorax. The anterior part of the last 

 dorsal segment of the al)donien is channelled for the reception of 

 the sutural edge of the elytra, almost as in Antliribido3. This is 

 a very peculiar character, and no trace of it exists in the other 

 genera in our fauna. 



Three species of Calandra occur in our fauna; they have 1)een 

 distributed in the cereal grains upon which they depredate, so 

 that their original habitat caiuiot be known with certainty. Dr. 

 J lorn mentions that from time to time other species liave Ihx'U 

 introduced by shii)S from tropical ports, but fortunately they have 

 not vet become naturalized. 



Sub-Family II.—RHININ^. 



This. sub-family corresponds nearly if not exactly with Ijacor- 

 daire's tribe Sipalides, and the essential difference between it 

 and the Calandrintc is in the position of the buccal opening 

 whicli is entirely at the end of the beak, not extending upon the 

 under surface; the pygidium is not large and peri)endicularly 

 declivous as in the last sub-family, but covered by the elytra, 

 Avhich are conjointly rounded at tip; another character also sepa-. 

 rates it from Calandrinje (though not from Lacordaire's tribes 

 Strombosceridcs and Oxyrhynchidcs, which are not represented 

 in our fauna, and are unknown to ns in nature); the eyes are 

 strongly granulated, very large, and confluent on the under sur- 

 face of the head. 



Til nearlv all the genera mentioned 1)V Jjacordaire, the mandibles 



