66 U. S. NATIONAL MUSEUM BULLETIN 216 



Black, usually with abdomen, and frequently sides of thorax and 

 of propodeum, more or less reddish. Pedicel and base of first seg- 

 ment of flagellum pale yellowish beneath; clypeus, mandible, and 

 adjoining region of gena often reddish brown; palpi, tegula, and a 

 rather large spot in hind corner of pronotum yellowish white; tergite 

 1 entirely, and other tergites at apices, black to brownish black; re- 

 mainder of tergites varying from almost entirely black to entirely dull 

 reddish; legs reddish, with front and middle trochanters pale yellowish; 

 hind tibia and bases of first three segments of hind tarsus with broad 

 whitish annuli; subbasal fuscous annulus of hind tibia interrupted 

 above. 



Females of this species having the abdomen more or less reddish 

 are liable to be confused with the female of aplopappi but may be 

 distinguished by the much larger abdominal sternites and the differ- 

 ences in the markings on the legs noted in the key. 



Specimens (14c? , 679): 4<? , 9, Colwood, B. C, July 5 and 23, 1929, 

 W. H. A. Preece (Ottawa). 39, Courtenay, B. C, Mar. 21 and Apr. 

 21, 1931 (Ottawa). 29, Cultus Lake, B. C, Oct. 21 and 22, 1938, 

 J. K. Jacob (Ottawa). 9, Cultus Lake, B. C, July 13, 1948, H. R. 

 Foxlee (Ottawa). 29, Duncan, B. C, July 10, 1910, and July 4, 1911 

 (Ottawa). 29, Duncan, B. C, July 12 and December 1928, W. G. 

 Mathers (Ottawa), c?, 29, Esquimalt, B. C, July 10, 1911 (Ottawa). 

 9, Forbidden Plateau, Vancouver Island, B. C, July 13, 1935, J. D. 

 Gregson (Ottawa). 9, Langford, B. C, June 8, 1941, K. Graham 

 (Ottawa). 79, Malahat, B. C, Sept. 21, 1928, W. Downes 

 (Ottawa). 29, Robson, B. C, June 1 and 23, 1948, H. R. Foxlee 

 (Ottawa). 9, Saanich, B. C, May 1929, W. H. A. Preece (Ottawa). 

 49, Vancouver, B. C, July 8, 1915, R. N. Crystal (Ottawa). 2c?, 

 59, Vancouver, B. C, July 8 and 24 and Aug. 1, 4, 5, 9, and 11, 1930, 

 H. B. Leech (Ottawa). 29, Vancouver, B. C, 1925, K. E. Schedl 

 (Ottawa). 9, Victoria, B. C, June 1, 1900, G. W. Taylor (Ottawa). 

 9, Victoria, B. C, Apr. 15, 1917, A. E. Cameron (Ottawa), c?, 

 Victoria, B. C, July 11, 1941, K. Graham (Ottawa). 2c?, 49, Ala- 

 meda Co., Calif., Jan. 27, 1917, J. C. Bridwell (Berkeley). 49, 

 Crescent City, Calif., Aug. 1 and 2, 1940, H. and M. Townes (Townes). 

 99, Muir Woods, Marin Co., Calif., Aug. 20, 1908, J. Ch. Bradley 

 (Ithaca). 9, Muir Woods, Marin Co., Calif., Apr. 23, 1911, E. C. 

 Van Dyke (San Francisco), c?, University of California Campus, 

 Berkeley, Calif., Feb. 22, 1956, W. W. Middlekauff (Berkeley). 9, 

 Lake Waha, Idaho, June 9, 1918, A. L. Melander (Cambridge), c?, 

 29, Cannon Beach, Oreg., Aug. 6, 9, and 11, 1940, H. and M. Townes 

 (Townes). 29, Ashford, Wash., July 10, 1940, H. and M. Townes 

 (Townes). 39, Bellingham, Wash., June 3 and 19, 1944, R. D. 

 Shenefelt (Madison), c?, Carters Point on San Juan Island, Wash., 



