Biological Papers. 277 



the Kansas list have not been cited in either of the preceding pa- 

 pers. 



The scheme of classification outlined by Dr. W. H. Ashmead has 

 been used as a guide for the arrangement of my list, notwithstand- 

 ing some lack of conformity on my part with regard to revised 

 nomenclature. The work of determination was carried on by my- 

 self so far as circumstances permitted, and it covered most of the 

 material; otherwise the specimens were submitted to specialists for 

 study. Mr. H. L. Viereck has identified many species, a number 

 of which he described as new. Mr. Chas. T. Brues has also aided 

 in similar work which dealt principally with parasites. Credit is 

 given in the proper places to other authorities who have assisted 

 me. Wherever the name of a new species is cited, reference is 

 made to the distinction of the type according to Lord Walsingham's 

 designations concerning type specimens. The descriptions pub- 

 lished individually by Viereck and Brues establish 58 new species 

 and varieties by name, which pertain to specimens collected by 

 myself, in families as follows: Pemphredonidse, 2 by Viereck; 

 Trypoxylidse,! by Viereck; Eumenidse,! by Viereck; Ichneumonidse, 

 23 by Viereck and 2 by Brues; Alysiidse, 4 by Viereck; and Bra- 

 conidse, 24 by Viereck and 1 by Brues. In addition, one new variety 

 in thft family Anthophoridse, and one new species in the family 

 Eumenidse, are founded upon my own names and descriptions? 

 which are incorporated in my list herewith. 



Family Apid^. 

 Apis mellifica L. Kansas and Colorado. 



Family Bombid^. 

 (Mr. E. S. G. Titus kindly reported a few names of species, including 

 B. consimilis Cr. from Venango county, Pennsylvania.) 

 Bombus appositus Cr. Colorado, Buffalo; August. 



calif ornicus Sm. Colorado, Tabernash; August. (Det. by H. J. 



Franklin.) 

 fervidus Fab. Males, formerly listed as .Apai/^.^ts eiaiws Fab. (Kan- 

 sas, Wichita; August. Colorado, Colorado Springs and Denver; 

 August, 

 flavifrons Cr. Colorado, Coloradcr Springs, in Garden of the Gods; 

 July. Cheyenne cafion, near Colorado City; August. Buffalo; 

 August, 

 howardii Cr, Colorado, Buffalo; August, 

 morrisoni Cr. Colorado, Colorado Springs; August, 

 pennsylvanicus Cr. Kansas, Lawrence; May; July; July, twilight; 



August; September Wichita; August, 

 proximus Cr. Colorado, Buffalo; August^ 



rufocintus Cr. Colorado, Colorado Springs; August. (Det. by 

 H. J. Franklin.) 



