March, '09] ENTOMOLOGICAL NEWS. 125 



Osmia stasima n. sp. 



$. Length n mm. A stout bluish-green bee, distinctly and very 

 densely punctured; with the vertex, thorax and basal abdominal seg- 

 ment clothed with hoary white pubescence. Head large, with bare, 

 subquadrate front; clypeus purple, anterior margin entire, truncate; 

 mandibles broad, black, feebly tridentate, the margin appearing almost 

 entire, the interval between the second and third tooth broad. An- 

 tennae black, apical joints of the flagellum brown. Wings tinted with 

 reddish-brown, marginal cell darker, nervures dark brown, basal 

 nervure before transverse medial, tegulae black. Legs black (hind 

 coxae blue), with light brown hair on tibiae and reddish-brown on 

 tarsi. The apical abdominal segment is thinly clothed with fine, whit- 

 ish hair ; ventral scopa dense and black. 



Collected at Rockport, Mass., July 16. by C. W. Johnson. 

 This species is allied to 0. major Robt., but the latter has the 

 mandibles 4-dentate. O. major is said to closely resemble 0. 

 atriventris, which has the mandibular teeth salient and well- 

 defined ; but in O. stasima though the mandibles are large and 

 broad their margin is almost entire or only slightly notched. 

 If the specimen be viewed from the front the left anterior tibia 

 has a small but prominent tooth on the outer apex. This type is 

 in the Museum of the Boston Society of Natural History. 



Osmia lignaria Sav, 9 . 



Fall River, Mass., May 6, J. A. Cushman ; Winchendon, 

 Mass., May 10, Dr. F. W. Russsell ; Squam Lake, N. H., June 

 22, G. Mallen. 



0. atriventris Cr. 9 . 



N. Adams, Mass., June 14, C. W. Johnson ; Cambridge, 

 Mass., June 9, G. Mallen; Hyannis Port, Mass., July 3, C. W. 

 Johnson ; Orr's Is., Me., July 24, and Capens, Me., July 16, C. 

 W. Johnson. 



0. inspergens Lov. & Ckll. 9- 



Blue Hill, Mass., June u, 1890, J. H. Emerton. 



0. albiventris Cr. 9 . 



North Adams, Mass., June 14, 1904, C. W. Johnson. 



0. globosa Cr. 9 . 



Framingham, Mass., C. A. Frost. 



The nest of O. globosa was found April 24th under a stone, 

 and the bee came out May 2. The cell was roughly fashioned 



