Tin: AXxVALS 



kWD 



^[AGAZIXE OF iNATURAL EISTOllY. 



[SEVENTH SERIES.] 

 No. 113. MAY 1907. 



XLII. — Descriptions and Records of Bees. — XIII. 

 By T. D. A. COCKERELL, University of Colorado. 



Osmia viridior, sp. n. 



^ , — Lengtli fully 12 mm. ; anterior wing a little over 8 ; 

 width of abdomen 4. 



Head very dark blue-green ; mesothorax and scutellum 

 yellow-green ; the rest of thorax black with a greenish 

 lustre; legs black, not at all metallic; abdomen sliining 

 blue-green, dark but very decidedly green. Head and thorax 

 densely punctured, clothed above with copious long hair, that 

 of face white, but of sides of vertex and cheeks strongly 

 intermixed with black ; head normal, mandibles strongly 

 bidentate ; anterior edge of clypeus straight, very smooth and 

 shining ; clypeus otherwise dull and densely rugoso-punctatti ; 

 antennae black, third joint with a fine reddish tomontum, 

 only noticed in certain lights ; flagollum not at all monilif<jrm ; 

 thorax above witii long creamy-white hair, not at all mixed 

 with black ; })leura with long hair, anteriorly dull white, 

 posteriorly black. Legs with black liair, but shining reddish 

 on inner side of anterior tar.^i, long and dull white on anterior 

 femora behind, and some dull white at apex of middle femora 

 behind ; spurs and tarsi normal ; tegulaj shining black. 

 Wings hyaline, the apical margin broadly pale brownish, and 

 a daik streak in marginal cell; first r. n. joining second s.m. 



Ann. c£- May. X. Hist. Ser. 7. Vol. xix. 2G 



