THE CANADIAN ENTOMOLOGIST 85 



Philanthus yakima, n. sp. 



Washington — Yakima, 2 to 4 July, 1882, (S. Henshaw). 



9 . Close to P. flavifrons, but smaller. Face, mandibles, scape beneath, 

 streak behind eyes, two dots on vertex, collar, tegulae, tubercles, spot behind, 

 larger spot below, spot at posterior corners of mesonotum, adjoining spot each 

 side on base of scutellum, postscutellum, spot each side on metanotum, broadly 

 interrupted bands on first and second, segments, bands on others, broad on 

 sides, very narrow in middle, that on third deeply inden/ted each side behind, 

 broad bands on second, third and fourth ventral segments, all yellow. Legs 

 (including coxae) yellow, basal part of femora, rather more than one-half on hind 

 femora, and spot tow^ard tip of hind tibia black. Underside of flagellum rufous; 

 stigma yellow. Punctured as in flavifrons, striately on front, few on meso- 

 notum, rather deeply and evenly scattered on abdomen, but hardly as large as 

 in flavifrons. Differs from flavifrons in that the enclosure has the posterior as 

 well as lateral margins raised and smooth, making a horse-shoe-shaped area. 

 The last dorsal segment is broadly triangular, and the sides not concave to- 

 ward tip as in flavifrons. 



Length 10 mm. 



FURTHER NOTES ON THE LATIMANUS GROUP OF THE BEE 



GENUS MEGACHILE. 



BY F. W. L. SLADEN, APIARIST, DOMINION EXPERIMENTAL FARMS. 



In the Agricultural Gazette of Canada, February, 1918, page 125, I proposed 

 the name diligens for Megachile latimanus, Ckll. not of Say. Professor Cockerell 

 has informed me that the name diligens was given by F. Smith in 1879 to a 

 Megachile in the Hawaiian fauna, so that it becomes necessary to find a new 

 name for latimajiiis Ckll., and I propose dentitarsus. The difference between 

 this and the other Canadian species of the latimanus group were pointed out in 

 my table given in the Canadian Entomologist, September, 1918, page 302. 

 There is, however, another character to which Professor Cockerell has called 

 my attention. When the abdomen is viewed from above and slightly tilted, 

 black hairs are prominent laterally in dentitarsus {latimanus Ckll.), but no black 

 hairs project at side in perihirta, Ckll. (grindeliarum Ckll.). 



OCCURRENCE OF THE PEAR THRIPS IN ONTARIO. 



BY WM. A. ROSS, DOMINION ENTOMOLOGICAL LABORATORY, VTNELAND STA., ONT. 



The notorious pear thrips Tceniothrips inconsequens Uzel, hitherto unrecorded 

 in Ontario, was taken by the writer last spring (1918) on pear trees in a large 

 orchard near Beamsville. Fortunately the thrips was present in very small 

 numbers and apparently was not causing any appreciable injury. 



Thanks are due to Mr. P. J. Parrott, of the Geneva Agricultural Experi- 

 ment Station, and Capt. J. D. Hood, Washington, D.C., for confirming the 

 identification of this insect. 



For the information of the reader it should be stated here that an excellent, 

 detailed account of the known distribution, life history, habits and control of 

 the pear thrips is given by A. E. Cameron and R. C. Treherne, of the Dominion 

 Entomological Branch, in Bulletin No. 15— "The Pear Thrips and Its Control 

 in British Columbia." 



April, 1919 



