434 Coleopterological Notices, V. 



The second section of Raffray, having the tarsi normally pselaphi- 

 dous in structure, should constitute a distinct tribe, intermediate 

 between the Faronini and Euplectini, for, in the present family, a 

 difference in tarsal structure such as this, is of far greater impor- 

 tance than any possible modification of the ungues. 



At the same time, an extraordinary character, hitherto escaping 

 record as far as I can discover, shows that the tribe Faronini, in 

 its limited sense, is in reality very isolated. The sexual modifica- 

 tions at the apex of the venter are bilaterally asymmetric. Whether 

 or not this occurs in Faronus I am unable to state at present, but 

 it is a common condition in both of our genera, and is confirmed by 

 large series of several species in my cabinet. 



The genera of this tribe thus far known are as follows, those not 

 occurring within the limits of the Unites States being distinguished 

 by an asterisk : — 



Tempora obsolete, the eyes very large, extending to the base. 



^Faioiiidius 



Tempera large and long behind the eyes, the latter smaller. 



Tempora angulate ; intermediate coxae not separated by a mesosternal pro- 

 cess ; metasternum short *FaroniIS 



Tempora not angulate ; intermediate coxae separated by a narrow meso- 

 sternal lamina. 



Metasternum and elytra rather short (types of genus misella and parva 

 Shp.) ; front narrowed, tlie antennal prominences approximate, sepa- 

 rated by a longitudinal sulcus which is expanded behind the frontal 

 margin ^Sagola 



Metasternum long, in a longitudinal line through the acetabula about 

 twice as long as the intermediate coxae ; front wide, not tuberculiform, 

 the antennal prominences widely distant, separated by a non-sulciform 

 depression, having a very large, isolated, extremely deep and sensitive 

 pit at some distance behind the apical margin ; nuclial constriction 

 simple beneath ; elytra long ; first visible dorsal segment very short, 

 transversely lineate with minute pubescence Sonoiua 



Metasternuxn short, in the line of the acetabula scarcely at all longer 

 than the intermediate coxae ; head as in Sonoma, but with two sensi- 

 tive patches in the nuchal constriction beneath ; eyes rather more con- 

 vex and prominent ; elytra short ; first visible dorsal nearly as long as 

 the second and entirely similar to it, completely devoid of the pubes- 

 cent line RafoilUS 



Metasternum and elytra very short, the latter scarcely as long as the pro- 

 thorax ; front broad, the antennae widely separated ; vertex with two 

 foveas, not isolated from the frontal pit but joined by a foveiform chan- 

 nel ; basal segment of the abdomen without the transverse subpu- 

 bescent line ^Deleilda. 



