120 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 



and Central and South America only about as many more. Two species 

 have been found fossil in Europe and two in America, the latter at Florissant 

 only. One of the European species, T. manderstjcrnai Heyden from Kott, 

 appears to l>e cjuite too large for a Tychius and is preserved in such a 

 position as hardly to allow jn'oper comparison witli the American fossils; 

 the other, T. latiis Forster from Brunstatt, differs much from the American 

 s])ecies, is stouter, and has the beak imperfectly preserved. 



Table of the species of Tychhis. 



Rostinim as long as head and prothorax together secret us. 



Rostnuu sliortci' than head and prothorax together eeolatus. 



Tychius secretus. 



PI. VI, Fig. 12. 



Body moderately elongate, the dorsum well and )-egularly t-urved. 

 Head small, eye moderately large, transversely oval; beak as long as head 

 and prothorax together, Itarely arcuate, moderately slender, very delicately 

 punctulate. Thorax tapering rather rapidly from base, less than half as 

 high again as long, uniform, rather coarsely and densely punctate. El}tra 

 fully twice as long as broad, rather finely striate and aj)pa.rentlv very faintly 

 punctate in the striae. 



Length, excluding rostrinu, 4'1"""; rosti'um, l-Jf)"""; height of body, 



Florissant, (lolorado. Two specimens, Nos. 8230, 13026. 



Tvt'HIlIS EVOLATUS. 



PI. VI, Figs. 11, 13, 17. 



Body rather elongate, the dorsum moderately curved. Head small, 

 not much higher than long, feebly but not very hnely punctate; eye of 

 moderate size, circulai-, or slightly oval in a transverse sense; beak some- 

 what longer than the prothorax, almost straight oi- feebly arcuate, slender. 

 Thorax tapering regular] v from l)ase, considerablv more lliaii half as high 

 again as broad; densely, heavily, l)ut not very coarsely punctate. Elytra 

 fully two and a half times longer than broad, punctato-striate, tlie inter- 

 spaces Hat and a])parently feebly and obscurely pmictate. 



