112 
PSYCHE 
[October 
Clisodon. 
Clisodon terminalis Cress. 
1869 Anthophora terminalis Cress. $ c?, Trans. Am. Ent. Soc. 2 : 292. 
1879 Clisodon terminalis Patton, Bull. U. S. Geol. Surv. 5 :479. 
One female on the flowers of Pontederia cordata, .July 21, 1904. Xo species of 
Tetralonia, Xenoghssa, or Anthophora, have yet been recorded from INIaine. 
Intermediate between the old divisions of Andrenidae and Apidae there are num- 
erous genera of bees, representing different phylogenetic lines, but possessing the 
common character of two submarginal cells. They are of special interest to the 
floroecologist from the fact that many species are oligotropic flower- visitors. In 
the arid regions of New Alexico it has been observed that most species of Perdita, 
which are in that area numerous, confine their visits to one kind of flower.* As so 
little is known of the bees of northern X"ew England, it seems tlesirable to enumerate 
the Maine species belonging to this group, and to note their times of flight and flower 
records. 
H.vlictoides. 
Halictoides ?(Oi’ac-angliae Robt. 
1897 Patiurgus novae-angliae Robt. (S', Trans. Ac. Sci. St. Louis, 7 : 339. 
1904 Conohalictoides lovelli Vier. 9 (S', Ent. News, 15 : 244. 
This species is a common visitor of Pontederia cordata, but it has never been col- 
lected on any other aquatic or upon any land plant. The writer knows of no other 
common bee found at I\'aldoboro, which entirely restricts its visits to one species 
of flower. Mr. H. I>. Viereck in his description in Entomological News states that 
this bee is also found at Derby, Pa., and at Chestertown, Md. Robert.son described 
it from “Mass., Ct. (A. P. Morse).” 
IMacropis. 
1880 Macropis ciliata Patton, 9 (S, Ent. Mo. Mag. 17 :31. 
The females of this genus are usually regarded as oligotropic visitors of Lysi- 
machia. I have, however, found M. ciliata 9 a common visitor to the umbels of 
p. 104. 
Cockerell, T. D. A. Notes on New Mexican Flowers and their Insect Visitors. Bot. Gaz., 1S97, 
