H. C. FALL. 107 



1854. Gerstaecker, Stett. Ent. Zeit., described many species from 

 both North and South America. Among them the following 

 are credited to our fauna : cinereum, melanarium, metalli- 

 cum, nodirodre, subglobosum and vile. Of these, cinereuin 

 is Say's segnipe)^; melanariivm is doubtfully recognized; 

 metallicum, suppressed by Smith as a synonym of troglo- 

 dytes Mann., but erroneously, as I believe, is now restored ; 

 nodirostre, vile and suhglobosum are still unknown. It is 

 more than likely that the last named species was not taken 

 within our faunal limits. 



1857. LeConte, Pac. R. R. p]xpl. and Surv., described cavifrons, 



crassinasam, cribricolle, proclive and protemwii. Crussi- 

 nasum and proclive ai'e the sexes of the same species ; pro- 

 tensum is still unique. 



1858. LeConte, Proc. Acad. Nat. Sci. Phila., adds (edorhynchum 



and ventricosuni. 

 1867. Walsh, Proc. Ent. Soc. Phila., described lanugino-nmi. This 



name being preoccupied was changed by Smith to walshii. 

 1884. Smith, Trans. Am. Ent. Soc. Phila., adds 48 species, of 



which 12 have been by himself, or are in the following 



pages, reduced to synonymy, viz. : 



erythrocerum = pennm/lvanicum 

 estriatum =^ erraticum 9 

 ovale = obsoletum 9 



obesum = rohustum, 9 



parviilum ^= minutum 

 californicum = sordidum var. 

 concoloratum = carinatum 

 hrevicolle = cribricolle Lee. 

 capitatum = ohlitum 

 typicum = ventricosum Lee. 



vicinum = walshii 



fratenmm = griseum. 



1 84. Casey, Bull. Brook. Ent. Soc, described vespertinani. This 



is shown farther on to be the same as californicum. 

 1887. Smith, Entom. Americana, described lividum. 



For a statement of the characters of the genus the student is 

 referred to the " Classitication." 



The production of the interior angle of two or more })airs of tibije 

 of the male in many species into a more or less developed spur or 



TRANS. AM. ENT. SOC. XXV. OCTOBEK, 1898. 



