432 ]\lr. T. D. A. Cockerell — Descriptions and 



Megachile campanula (Robertson). 

 $ . — Indiana. Collector unknown. 



Megachile exilis, Cresson. 



The following localities are in Texas : — Grand Prairie, at 

 Ambrosia jjsilostachya, June, c^ [Jones); Rosser, June 7 

 (Jones) ; Runge^ Sept. 20 {Crawford) ; Victoria, April 17, 

 (? ? {Leister) ; Del Rio, May H {Bislwpp) ; CotuUa, May 12 

 (Craivford) ; Kerrville, at Monarda citriodora, May 31, 

 eleven females (^Pratt). It also occurs at Durant, Okla., at 

 Asclepias, one carrying a pollen mass on hind leg {Bishopp) ; 

 and in Arkansas at Dalevnlle, Aug. 13 {Jones), and Fouke, at 

 Verbesina helianthoides, May 22, S (Bishopp). 



Megachile Jidelis, Cresson. 

 Los Angeles, California ; nine females, Aug. (Coquillett) . 



9 



Megachile vidua monardarum (Cockerell). 



fT . — Longs Peak Inn, Colorado, at Bisturta bistortoides, 

 June 2G {IV. P. Cockerell). 



Megachile chilopsidis, Cockerell. 

 $ . — Cotulla, Texas, May 5 (Craivford). 



Megachile newelli, Cockerell. 



$ , — A characteristic feature is that the apex of clypeus 

 is covered with ])ale hair. 



Paris, Tex. (Bishopp) ; Victoria, Tex., at Nudheclia am- 

 plexicavlis, April 28 (('nshman) ; Lafayette, Tja., at thistle, 

 April 29 (Cushman) ; Mansfield, La., at Heleniumteniii folium, 

 July 4 (Bishopp) ; Mound, La., at llelenium tenuifoliuni, 

 Aug, 20 (Bishopp). 



Tliis is probably the female of M. integra, Cresson. 



Megachile henrici, Cockerell. 

 ? . — Fernshaw, Australia (Nat. Mus. Vict. 18). 



Megachile derelicta, Cockerell. 



?. — Brisbane, smaller than type, Sept. 24 (Hacker \ 

 Qucensl. Mus. 75). 



