MELOID.E— RHIPIPHORID.E. 117 



rugge. Body of the .single specimen preserved on a side view so that it is 

 impossible to say how much broader the elytra are at their base than the 

 prothorax, but they have the appearance of being somewhat broader ; there 

 are faint signs on them of an exceedingly shallow, not very dense, and 

 uniform punctuation, and, in places, of short hairs arising from the puncta. 

 Legs A^ery slender and constructed as in G. minimum Say. 



Length, 6 mm.; breadth, 2 mm. 



The form of the prothorax is very unlike Gnathium, but I tind no 

 other genus to which it is so i;iearly allied at all other points. 



Florissant, Colorado ; one specimen, No. 7493. 



RHIPIPHORID^E. 



Only four fossil species of this family are known, belonging to three 

 genera, all but one of them found in the Old World. 



RHIPIPHORUS Fabricius. 



A north temperate genus with relatively few species, most of them 

 found in North America. A single fossil has been described from Colorado 

 and the genus has been recognized in amber. 



Rhipiphorus geikiei. 



Rhipiphorm gdhiei Scudd., Tert. Ins. N. A., 482-483, pi. 27, fig. 1 (1890). 



Florissant, Colorado. 



