1901] ENTOMOLOGICAL NEWS. 5 



2. P. pygmaea Cr., 1869. 



A small species ; length 4 mm. My first specimens were 

 taken this season on the garden blackberry June igth, and my 

 last on the goldenrod August 22nd ; this bee was also taken on 

 the wild rose and Aralia hispida. Nine 9 and eight $ speci- 

 mens taken at \Valdoboro, Maine, and seven 9 and four $ 

 specimens collected at Elkhart, Indiana. 



$. Face marks bow shaped, yellow (in one specimen nearly dark) ; 

 clypeus and supraclypeal piece dark, finely and irregularly striate ; in one 

 specimen there is a small dot on clypeus. Collar dark, two yellow spots 

 on tubercles, sometimes with a minute dark dot in the center ; teguke 

 either with or without a yellow spot. First segment of abdomen smooth 

 and shining, no apical fringe of pubescence on segments. 



rf. Base of all the tibiae, tubercles, clypeus, supraclypeal piece and 

 sides of face pale yellow ; upward extensions of lateral face marks diverg- 

 ing from the orbit, and slightly enlarged and rounded at apex. Supra- 

 clypeal mark longer than broad. Yellow line on scape in front, flagellum 

 testaceous beneath. 



In Illinois females frequently have a spot on clypeus, and 

 usually a spot on tegulae ; but the males are frequently without 

 spots on tegulse. 



3. P. sauiculae Rob., 1896. 



?. More slender than P. pygmcza. A narrow, rather short yellow 

 stripe on each side of the face, not rilling the space between the clypeus 

 and orbit. A yellow spot on each of the hind tibia; ; collar, tubercles and 

 tegulae dark. Head and thorax finely punctate ; abdomen impunctate, 

 shining ; apical segments minutely pubescent. 



My specimens were taken July i5-i6th on Aralia Jn'spida. 

 Waldoboro, Maine. 3 9 specimens ; Elkhart, Indians, 2 

 specimens. 



4. P. modesta Say, 1897. 



9. Face marks triangular, two yellow spots on collar and tubercles, 

 and base of all the tibia? yellow. Flagellum testaceous beneath. No yel- 

 low spots on tegulae or edge of wing-base. Head and thorax closely 

 punctured ; first abdominal segment smooth and shining, with lateral 

 apical fringe of white pubescence. Wings dusky hyaline. 



Elkhart, Indiana, 4 9 specimens. Robertson regards it as 

 probable that Say's description was based on specimens taken 

 in Indiana. 



The females of this species in Illinois do not differ from this 



