L'S Mr. T. I). A. I'oekcivll o» JJ,c^\ 



brownish fori urinous, ncrvnres dark brown; second siib- 

 nijirginal cell very little broader above than third ; basal 

 ncrvurc passing a short distance basad of tran^^verso-mollial ; 

 abdomen siiining, impunctate, thinly haiiy, with longer hair 

 on first two segincntH. Kehitod to jL bipunctata^ Cress., and 

 A. trcvoris, Ckll., but very distinct. 



llah. Maniton, Colorado, GG30 feet, April 28, 1^04, at 

 llowers of liihes leptanthum. Collected by T. 1). A. and 

 W. P. Cockerell. 



Mr. Viereck writes : — " Kcprcscnted in coll. Am. Ent. Soc. 

 by 3 $ and 4 ,$ from Nevada : the ? is covered all over 

 ■with broM'n pubescence and has a variable yellow spot on the 

 clypeus ; this yellow S])ot is only faintly indicated in one 

 sjiecimen.'" '\ he species belongs to a group consisting of 

 yl. leptanthi, A. Porterte, and a new species from New Jersey 

 and Connecticut which will be published by Mr. Viereck. 



Andrena PortercB, Ckll. 



This black species is new to Colorado. Maniton, April 2^^ 

 at flowers of liihes lejitanthnm, 2 ? ; Cheyenne Canon, Colo., 

 at liihes leptanthum J May 11, 1 ? collected by Miss Winifred 

 ]\1. Shumway ; Rosweil, Colo., at Elbes long ijior urn, May 14, 

 1 $ collected by W. P. Cockerell. 



Andrena erythrogastra (Ashmead). 



Colorado Springs, Colo., at female flowers of Sali'x, May 10, 

 1 ? {]]\ P. Cockerell) ; Pros|)ect Lake, Colorado Springs, 

 at Salijc, May 22 (T. cD IF. 6'A'//.). 



Noinada suavis, Cresson. 

 Palo Alto, California, Aug. 16, 1895 (F. L. Kellogg). 



INomada ultima, Ckll. 



Palo Alto, Califurnia, April 6, 1892 ( V. L. Kellogg) . New 

 to California. 



NontaJa Jragilts, Cresson, 



Halfway House, Pike's Peak, Colorado, about 8900 feet, 

 at flowers of Salix, May 30, 1 cJ {Cockerell). 



Somada Frieseana, sp. n. 



$ . — Length about 9 mm. 

 Just like N. rubicunda of the Atlantic seaboard, except for 



