THE CANADIAN ENTOMOLOGIST. 171 



hair, which covers the apical one ; ventral scopa white, short. The female 

 O. andrenoides compared is from Corfu ( Morice). 



Hab. — Claremont, California. (C. F. Baker, 7226). A representa- 

 tive of the group of 0. andrenoides (subgenus Erythrosmia Schmied.), 

 not before known in America. 



Osmia (Gnathosmia) Louhiance, n. sp. 



? . — Lengtli nearly 9 mm ; agrees with Cresson's description of O. 

 Georgica, and Robertson's additional diagnosis, except that instead of 

 being "black, tinged with blue," it has the head, thorax and abdomen 

 shining blue-green. The colour and general superficial appearance are as 

 in 0. physarice Ckll., but the wings are very brown, whereas '\n physarice 

 they are clear. The mandibular processes are very large, forming, as 

 Cresson says of Georgica, an arch interrupted in the middle. Legs black, 

 the hind femora faintly subm.etallic in front; tegulte rufopiceous ; ventral 

 scopa long, light orange-yellow. The anterior coxae are sharply keeled 

 on the outer edge. 



Hab. — Mound, Louisiana, May 4, 1905. (C. R.Jones, 234.) O. 

 Georgica Cresson, was based on a single female from Georgia. Since then 

 Robertson has taken it in Illinois, and Professor Tilus informs me that it 

 occurs in North Carolina. It is possible that the present insect is only a 

 variety or geographical race, but it seems more likely that the differerxe 

 of colour indicates a distinct species. 



A NEW ALEYR0DE3 ON BEARBERRY 



BY T. D. A. COCKERELL, BOULDER, COLORADO. 



Although the common bearberry ( Arctostaphylos nva-ursi) is circum- 

 polar in its distribution, the insects which affect it in America do not seem 

 to occur in Europe. Examples occur among the Coccidse ( Targionia 

 Dearnessi Ckll.) and Aphididiis ( Phyllaphis Coweni Ckll.), and now I 

 have to add a species of Aleyrodidre, of which I found pupse and an adult 

 near the top of Flagstaff Mountain, Boulder, Colorado, March 20, 1910. 



Aleyrodes ursorum, n. sp. 

 Pupa oval, pure black, 680 /x long, 518 broad ; a little white secretion 

 around the base, but no distinct fringe, and no dorsal secretion ; the usual 

 sutural cross lines present ; dorsal area bounded by a well-defined double 

 margin, which, when the pupa is seen from above is 35 to 50 yu, from the 

 lateral outline ; margin strongly crenulate, the projections shaped as in 

 A, mori (Proc. U. S. Nat. Mus., XXVII, pi. XXXII, fig. 39), but longer, 



May, 1910 



