CALIFOIIMA ArADKMV OF PCfRNCES. 



33 



APPl-NDIX. 



HESPEROBIUM n. geu. (Pixxleriui). 



It is not without groat diffidoiico tliat I here propose a new 

 name for the American species which have })cen hitherto 

 pUiced in Cryptobinni; especially is this the case since the 

 South American and Mexican species have been passed over 

 almost in silence regarding their generic distinctness by Dr. 

 Sharp, and the North American forms, first by Dr. LeConto 

 and afterwards, independently, by Dr. Horn, Being moved, 

 however, by the conviction that scientific nomenclature has 

 arrived at such a stage that to longer abstain from recogniz- 

 ing and differentiating distinct generic subdivisions, can only 

 be conducive to a superficial knowledge ol" nature and be 

 dtitrimental to a scientific arrangement of the species as a 

 whole, I have concluded to make the division and give the 

 differential descriptions in tlic form of paraJlcl (columns, by 

 wliich means the chief distinctive features can be more 

 readily compared. 



In the following statiunont tlio tj^po ol' Hesperobiutn is the 

 Oalifor)uan //. fiiiiu(liiiii Lee, the characters of Crj'ptobium 

 Maim. l)eing taken from the very thorough treatise by Mr. 

 G. Key ui)on the P;cderini (Hist. Nat. Col. Fr., 1878). 



CliYrTOBIlTM. 



Labrum short, siiumto and bideii- 

 ticuliitc ill the niichlh' of its iiuterior 

 niiiv'in. 



3— BlTi.r,. C\i,. AcAii. Sri. II. 



TlKsrKuoniiJ.M. 

 Labrnni very short and broad, 

 feebly and triixugularly einaryinate 

 throUKhont its width at apex, not 

 (hMiticnUate buthaviiij^ in the middle, 

 at the apex of the triangular noteh a 

 small rounded emargination; sides 

 strongly convm-gent toward the base; 

 apical angles narrowly rounded. 



I'lintfiil January 27, IHSfi. 



