PROCEEDINGS 
OF THE 
ENTOMOLOGICAL SOCIETY 
OF WASHINGTON. 
VOL. VII. DECEMBER, 1905. No. 4. 
SOME NOTES ON THE PROVANCHER MEGACHILID^. 
BY E- S. G. TITUS. 
[Continued from page 152.] 
Xanthosarus mdua Smith. 
1882: Le Naturaliste Canadien, v. XIII, p. 226, 227, n. 3, 
cT (M. scrobiculata) ; p. 226, 230, n. 8, 9 (M. grandis); p. 
227, 240-241, n. 10 (M. centuncularis) . 
1883: Fauna Ent. Can. Hym. p. 710, 711, n. 3, cT (M. 
scrobiculata); p. 710, 713-714, n. 8, $ (M. grandis); p. 710, 
714-715, n. 19, $ (M. centuncularis); 
1888: Add. Fauna Ent. Can. Hym. p. 462 (species as above 
noted) . 
1896: Dalla Torre, Cat. Hym. v. X, p. 425 (M. centuncula- 
ris, Prov. references); p. 445 (M. scrobiculata as syn. of 
pugnata, Prov. references) ; p. 444 (M. grandis under M. pollica- 
ris Prov. references). 
The specimen marked M. grandis is numbered 874 and the 
locality at present unknown. The cT marked M. scrobiculata 
bears the number 871 and it also has no known locality at 
present. One $ numbered 876 and labelled M. centuncularis is 
doubtless from Provancher's locality "CC." I have not added 
above in the references to M. centuncularis the following two 
as I have no means of knowing to what species he refers. 
1877: Le Naturaliste Canadien, v. IX, p. 23, 95. 
1886: v. XVI, p. 34. 
Xanthosarus melanophcea Smith. 
1882: I/e Naturaliste Canadien, v. XIII, p. 226, 228, n. 4, 
cT (M. femorata), p. 227, 232, n. 13, 9 (M. melanophaea) . 
