NORTH AMERICAN BEES. 189 



Whether this should be considered a distinct species may 

 only be determined when large collections of Prosapis are made 

 in South Dakota and adjacent regions. It is in any event an 

 interesting form, as it connects the Eocky Mountain types, with 

 the first abdominal segment strongly punctured, with those of 

 the east, in which that part is smooth or feebly punctured. The 

 indications are that South Dakota may be a meeting-ground be- 

 tween the eastern and western types of bees, but unfortunately 

 we know hardly anything of its bee-fauna. 



The Coll. Amer. Ent. Soc. contains two female Prosapis from 

 S. Dakota, one of them from Brookings. 



Pennsylvania. — A male sent by Mr. Baker differs from 

 Illinois modesta in being somewhat smaller, with a narrower 

 face, and less black on the hind tibiae. But I assume that it is 

 the same species. The U.S.N.M. contains P. pennsylvanica, 

 from Montgomery Co. Of females from Pa. I have only modesta, 

 sent by Mr. Baker ; they agree with those from Illinois. 



Mr. Dunning sends a male P. varifrons, a boreal type, from 

 Tioga Co. (A.M. Warren). 



New Jersey. — The U. S. N. M. contains four examples from 

 Camden Co., May 18th, 1890 ; one bears Mr. Fox's name. One 

 is a male pygmcea ; two are male modesta ; the fourth, also a 

 male, may belong to confluens, Smith, of which only the female is 

 known. It is nearest to zizice, but the wings are hyaline at the 

 base, and quite strongly dusky beyond the first discoidal cell (as 

 Smith says of confluens), the thoracic punctures are very large 

 and frequently confluent, the face is broader, and more of an 

 orange-yellow, the lateral face-marks are narrower above, taken 

 as a whole much like a hand with the index-finger pointing up- 

 wards, the upward prolongation being neither broadly truncate 

 nor pointed. The tegulse have a yellow spot. The label on the 

 specimen declares it to be modesta, which I am sure it is not. 



Mr. Dunning sends me four examples from N. J. ; three of 

 them, males, are genuine zizice ; the fourth, a female, is rather 

 larger, and has much coarser punctures on the thorax, wings 

 clouded, except at base, and in other respects agrees with con- 

 fluens ; it has a yellow spot on the clypeus, not described by 

 Smith in confluens. One of the zizice is from Ocean Grove, 

 July 19th, 1893. 



Thus we find in N. J. the three commonest Illinois species — 

 modesta, pygmaia, and zizice, but, so far, none of the others. On 

 the other hand, we have confluens, extending upwards along the 

 Atlantic seaboard from Florida ; for I feel reasonably sure that 

 the male and female above described do really belong to that 

 species. 



New York. — Here we meet with the boreal P. basalis, Sm., a 

 female, in Coll. Am. Ent. Soc, doubtless from the mountains. 



