- 



LeConte.] CALAXDRINI. 



^^^s 



be known with certainty. Dr. Horn mentions that from time to time o:her 

 species have been introduced by ships from tropical ports, but fortunately 

 they have not yet become naturalized. 



1. C. oryzae Fabr., Syst. El. ii, 438, &c. ; Horn, 1. c. 430; Curculio ory- 

 zce Linn. Amcen. Acad. vi, 395, &c.; Rhynchophorus oryzce Herbst, Kiifer, 

 vi, 18, Tab. 60, f. 9; Sitophilus oryza Gyll., Sch. Cure, iv, 981, (cum sy- 

 non. and bibliographia). 



Found in every part of the globe; universally distributed by commerce, 

 and said to have been originally derived from Asia; it affects rice, wheat, 

 and Indian corn (maize). The surface is dull, and the prothorax densely 

 punctured; the elytra are usually ornamented with four red spots, but are 

 sometimes red, with the suture, side margin and tip darker. 



2. C. remotepunctata Elorn, Pr. Am. Phil. Soc. 1873, 430; Sitophilus 

 rem. GylT., Sch. CurcTTv,' 979. 



Atlantic district, extending into Arizona. The surface is somewhat shi- 

 ning, and the prothorax is more coarsely and less densely punctured. 



3. C. granaria Fabr., Syst. El. ii, 437; Oliv., 83, p. 95; Tab. 16, f. 196, 

 &c. ; Curculio granarius Linn., Fn. Suec. 587; Syst. Nat. 12th, ii, 608, 

 &c. ; Sitophilus granarius Gy\\., Sch. Cure, iv, 977, cum synon. plnr. 



Missouri, depredating on wheat; C. V. Riley. Very similar to the pre- 

 ceding, but the punctures of the prothorax are smaller, and the strut of the 

 elytra much finer and less coarsely punctured. 



Subfamily II. RHINID^E. 



This subfamily corresponds nearly if not exactly with Lacordaire's tribe 

 Sipalides, and the essential differences between it and the Calandridce are 

 in the position of the buccal opening which is entirely at the end of the 

 beak, not extending upon the under surface; the pygidium is not large and 

 perpendicularly declivous as in the last subfamily, but covered by the ely- 

 tra, which are conjointly rounded at tip; another character also separates 

 it from CalandridcB (though not from Lacardaire's tribes Slromboscerides, 

 and OryrhyncMdes, which are not represented in our fauna, and are un- 

 known to me in nature); the eyes are strongly granulated, very large, and 

 confluent on the under surface of the head. 



In nearly all the genera mentioned by Lacordaire, the mandibles are con- 

 vex on the inner face, and the apical teeth are everted, though this is pro- 

 bably a group or generic character as in certain tribes of Calandrt\t<t'. The 

 club of the antennas varies in form according to genus, and is not annulatod. 

 The tarsi also vary, the third joint being narrow in some genera, wide and 

 bilobed in others. 



But one representative occurs in our fauna, which indicates a new genus; 

 allied to EMna and Hcvrpacterus- 



YUCCABOBUS n. g. 



The body is elongate, glabrous, suhrylimTHcal, resembling in appearance 

 a gigantic Cossonide; the beak is straight, as long as the prothorax. usually 



